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Information for

Karim Karim

Professor, Associate Dean Outreach

Contact InformationKarim Karim

Phone: 519-888-4567 x38336
Location: E3 3143

Website

Biography Summary

Karim Karim is a Professor in the Electrical and Computer Engineering department, the Associate Director of the Center for Bioengineering and Biotechnology (CBB), a Researcher in the Waterloo Institute of Nanotechnology, as well as the Director of Silicon Thin Film Applied Research at the University of Waterloo.

Professor Karim’s research group is investigating circuit, device and process development for large area electronics in the field of digital X-ray imaging for biomedical and bioengineering applications. The group also performs pioneering research in hybrid amorphous selenium-CMOS digital imagers where recently, the group demonstrated the world’s first 5 um pixel pitch direct conversion digital X-ray imager that is capable of visualizing up to 60 lp/mm with high dose efficiency. Using this imager, his group is pioneering a phase contrast X-ray micro-CT imaging tool that has the potential to critically advance genomics by allowing the work to proceed in intact animals, tissues, and even single cells, which has not been possible in the past.

Professor Karim has received multiple awards and honours, including the 2009 Canadian Institutes of Health Research (CIHR) Science to Business Fellowship, the 2008 Ontario Early Researcher Award and is the founder and CTO of a recent UW spinoff company (KA Imaging).

Research Interests

  • Digital Imaging
  • CMOS Integrated Circuits
  • Amorphous Silicon
  • Large Area Electronics
  • Semiconductor Devices
  • Biomedical Sensors
  • Semiconductor Fabrication
  • Amorphous Selenium
  • Silicon Devices & Nanotechnology
  • Digital Factories
  • Medical Imaging
  • Sensors And Devices
  • Connectivity And Internet Of Things
  • Nano-biosystems
  • Silicon Thin-film Applied Research
  • Microelectronic Circuits
  • Device And Process Development For Large Area Electronics

Education

  • 2012, Other, Health Sector Management, University of Toronto
  • 2002, Doctorate, Electrical Engineering, University of Waterloo
  • 1999, Bachelor of Applied Science, Computer Engineering, University of Waterloo

Courses

  • ECE 290 - Engineering Profession, Ethics, and Law
    • Taught in 2013, 2014, 2015, 2016, 2017
  • ECE 400A -
    • Taught in 2014
  • ECE 493 - Special Topics in Electrical and Computer Engineering
    • Taught in 2014, 2016
  • ECE 730 - Special Topics in Solid State Devices
    • Taught in 2014, 2016
  • ECE 400B - Electrical and Computer Engineering Practice
    • Taught in 2015

Selected/Recent Publications

  • Abbaszadeh, Shiva and Ghaffari, Saeedeh and Siddiquee, Sinchita and Kabir, M Zahangir and Karim, Karim S, Characterization of Lag Signal in Amorphous Selenium Detectors, IEEE Transactions on Electron Devices, 63(2), 2016, 704 - 709
  • Wang, Kai and Abbaszadeh, Shiva and Karim, Karim S and Rowlands, John A and Reznik, Alla, Reactive Ion-Assisted Deposition of Cerium Oxide Hole-Blocking Contact for Leakage-Current Suppression in an Amorphous Selenium Multilayer Structure, IEEE Sensors Journal, 15(7), 2015, 3871 - 3876
  • Ghaffari, Saeedeh and Abbaszadeh, Shiva and Ghanbarzadeh, Sina and Karim, Karim S, Characterization of optically sensitive amorphous selenium photodetector at high electric fields, IEEE Transactions on Electron Devices, 62(7), 2015, 2364 - 2366
  • Parsafar, Alireza and Scott, Christopher C and El-Falou, Abdallah and Levine, Peter M and Karim, Karim S, Direct-Conversion CMOS X-Ray Imager With Pixels, IEEE Electron Device Letters, 36(5), 2015, 481 - 483
  • Russ, M and Nagesh, S Setlur and Ionita, C and Scott, C and Karim, K and Bednarek, D and Rudin, S, WE-G-204-05: Relative Object Detectability Evaluation of a New High Resolution A-Se Direct Detection System Compared to Indirect Micro-Angiographic Fluoroscopic (MAF) Detectors, Medical physics, 42(6), 2015, 3694 - 3695
  • Hamouda, Ayman and Anis, Mohab and Karim, Karim, Mib (model-based initial bias): Towards a single-iteration optical proximity correction, , 2015
  • Fang, Yuan and Karim, Karim S and Badano, Aldo, 2 Monte Carlo Modeling of X-Ray Detectors for Medical Imaging, Radiation Detectors for Medical Imaging, 45, 2015
  • Karim, Karim S, ETHICS 2.0: AN INTROSPECTIVE APPROACH TO UNDERSTANDING AND TAKING OWNERSHIP OF YOUR ACTIONS, Proceedings of the Canadian Engineering Education Association, 2015
  • Abbaszadeh, Shiva and Tari, Alireza and Wong, William S and Karim, Karim S, Enhanced dark current suppression of amorphous selenium detector with use of IGZO hole blocking layer, IEEE Transactions on Electron Devices, 61(9), 2014, 3355 - 3357
  • Lindberg, GP and O'Loughlin, T and Gross, N and Mishchenko, A and Reznik, A and Abbaszadeh, S and Karim, KS and Belev, G and Weinstein, BA, Photo-crystallization in a-Se layer structures: Effects of film-substrate interface-rigidity, Journal of Applied Physics, 116(19), 2014
  • Shafique, Umar and Santato, Clara and Karim, Karim S, Lateral Organic Semiconductor Photodetector. Part I: Use of an Insulating Layer for Low Dark Current, IEEE Transactions on Electron Devices, 61(10), 2014, 3465 - 3471
  • Ghanbarzadeh, Sina and Abbaszadeh, Shiva and Karim, Karim S, Low dark current amorphous silicon metal-semiconductor-metal photodetector for digital imaging applications, IEEE Electron Device Letters, 35(2), 2014, 235 - 237
  • Kasap, Safa and Reznik, Alla and Rowlands, John and Sazonov, Andrei and Zukotynski, Stefan and Lu, Zheng-Hong and Kumar, Kitty and Stepanov, Dmitri and Mahtani, Pratish and Fitz-Ritson, Mallory and others, Special issue for the 25th anniversary of the International Conference on Amorphous and Nanocrystalline Semiconductors: Selected papers, Can. J. Phys, 92, 2014
  • Fang, Yuan and Karim, Karim S and Badano, Aldo, Effect of burst and recombination models for Monte Carlo transport of interacting carriers in a-Se x-ray detectors on Swank noise, Medical physics, 41(1), 2014
  • Abbaszadeh, Shiva and Allec, Nicholas and Karim, KarimS, Characterization of low dark-current lateral amorphous-selenium metal-semiconductor-metal photodetectors, IEEE Sensors Journal, 13(5), 2013, 1452 - 1458
  • Adachi, MM and Anantram, MP and Karim, KS, Core-shell silicon nanowire solar cells, Scientific reports, 3, 2013
  • Lindberg, GP and O’Loughlin, T and Gross, N and Reznik, A and Abbaszadeh, S and Karim, KS and Belev, G and Hunter, DM and Weinstein, BA, Raman and AFM mapping studies of photo-induced crystallization in a-Se films: substrate strain and thermal effects 1, Canadian Journal of Physics, 92(7/8), 2013, 728 - 731
  • Abbaszadeh, Shiva and Scott, Christopher C and Bubon, Oleksandr and Reznik, Alla and Karim, Karim S, Enhanced detection efficiency of direct conversion X-ray detector using polyimide as hole-blocking layer, Scientific reports, 3, 2013
  • Adachi, MM and Karim, KS, Core--shell homoepitaxial silicon nanowires, Chemical Physics Letters, 583, 2013, 141 - 145
  • Abbaszadeh, Shiva and Keshavarzi, Rasoul and Wang, Kai and Karim, Karim S, (Invited) Indirect Conversion Digital X-Ray Imager Using an Amorphous Selenium Photoconductor, ECS Transactions, 53(1), 2013, 271 - 279
  • Khorasaninejad, M and Adachi, MM and Walia, J and Karim, KS and Saini, SS, Raman spectroscopy of core/shell silicon nanowires grown on different substrates, physica status solidi (a), 210(2), 2013, 373 - 377
  • Abbaszadeh, Shiva and Karim, Karim S and Karanassios, Vassili, Measurement of UV from a microplasma by a microfabricated amorphous selenium detector, IEEE Transactions on Electron Devices, 60(2), 2013, 880 - 883
  • Allec, Nicholas and Abbaszadeh, Shiva and Scott, Chris C and Karim, Karim S and Lewin, John M, Evaluating noise reduction techniques while considering anatomical noise in dual-energy contrast-enhanced mammography, Medical physics, 40(5), 2013
  • Goldan, AH and Rowlands, JA and Tousignant, O and Karim, KS, Unipolar time-differential charge sensing in non-dispersive amorphous solids, Journal of Applied Physics, 113(22), 2013
  • Abbaszadeh, Shiva and Allec, Nicholas and Ghanbarzadeh, Sina and Shafique, Umar and Karim, Karim S, Investigation of hole-blocking contacts for high-conversion-gain amorphous selenium detectors for x-ray imaging, IEEE Transactions on Electron Devices, 59(9), 2012, 2403 - 2409
  • Goldan, AH and Tousignant, O and Karim, KS and Rowlands, JA, Unipolar time-differential pulse response with a solid-state Charpak photoconductor, Applied Physics Letters, 101(21), 2012
  • Fang, Yuan and Badal, Andreu and Allec, Nicholas and Karim, Karim S and Badano, Aldo, Spatiotemporal Monte Carlo transport methods in x-ray semiconductor detectors: Application to pulse-height spectroscopy in a-Se, Medical physics, 39(1), 2012, 308 - 319
  • Abbaszadeh, S and Allec, N and Ghanbarzadeh, S and Shafique, U and Karim, KS, Optoelectronics, Displays, and Imaging-Investigation of Hole-Blocking Contacts for High-Conversion-Gain Amorphous Selenium Detectors for X-Ray Imaging, IEEE Transactions on Electron Devices, 59(9), 2012
  • Yazdandoost, MY and Karim, KS, Optoelectronics, Display, Imaging-Photon-Quantum-Noise-Limited Pixel Architecture in Amorphous-Silicon Technology for Large-Area Digital Imaging Applications, IEEE Transactions on Electron Devices, 59(11), 2012
  • Abbaszadeh, S and Rom, K and Bubon, O and Weinstein, BA and Karim, KS and Rowlands, JA and Reznik, A, The effect of the substrate on transient photodarkening in stabilized amorphous selenium, Journal of Non-Crystalline Solids, 358(17), 2012, 2389 - 2392
  • Singh, Prashant Kumar and Chatterjee, Gourab and Lad, Amit D and Adak, Amitava and Ahmed, Saima and Khorasaninejad, M and Adachi, MM and Karim, KS and Saini, SS and Sood, AK and others, Efficient generation and guiding of megaampere relativistic electron current by silicon nanowires, Applied Physics Letters, 100(24), 2012
  • Yazdandoost, Mohammad Y and Karim, Karim S, Photon-Quantum-Noise-Limited Pixel Architecture in Amorphous-Silicon Technology for Large-Area Digital Imaging Applications, IEEE Transactions on Electron Devices, 59(11), 2012, 3017 - 3023
  • Kumar, Sunil and Khorasaninejad, M and Adachi, MM and Karim, KS and Saini, SS and Sood, AK, Probing ultrafast carrier dynamics, nonlinear absorption and refraction in core--shell silicon nanowires, Pramana, 79(3), 2012, 471 - 481
  • Goldan, AH and Tousignant, O and Rowlands, JA and Karim, KS, Solid-State Charpak Detector with Unipolar and Ultrafast Time-Differential Pulse Response, arXiv preprint arXiv:1203.3913, 2012
  • Allec, N and Abbaszadeh, S and Scott, CC and Lewin, JM and Karim, KS, Including the effect of motion artifacts in noise and performance analysis of dual-energy contrast-enhanced mammography, Physics in medicine and biology, 57(24), 2012
  • Allec, Nicholas and Abbaszadeh, Shiva and Fleck, Andre and Tousignant, Olivier and Karim, Karim S, K-edge imaging using dual-layer and single-layer large area flat panel imagers, IEEE Transactions on Nuclear Science, 59(5), 2012, 1856 - 1861
  • Kasap, Safa and Frey, Joel B and Belev, George and Tousignant, Olivier and Mani, Habib and Greenspan, Jonathan and Laperriere, Luc and Bubon, Oleksandr and Reznik, Alla and DeCrescenzo, Giovanni and others, Amorphous and polycrystalline photoconductors for direct conversion flat panel x-ray image sensors, Sensors, 11(5), 2011, 5112 - 5157
  • Chen, Feng and Wang, Kai and Fang, Yuan and Allec, Nicholas and Belev, George and Kasap, Safa and Karim, Karim S, Direct-conversion x-ray detector using lateral amorphous selenium structure, IEEE Sensors Journal, 11(2), 2011, 505 - 509
  • Allec, N and Abbaszadeh, S and Karim, KS, Single-layer and dual-layer contrast-enhanced mammography using amorphous selenium flat panel detectors, Physics in medicine and biology, 56(18), 2011
  • Sharma, Diksha and Fang, Yuan and Zafar, Fahad and Karim, Karim S and Badano, Aldo, Recombination models for spatio-temporal Monte Carlo transport of interacting carriers in semiconductors, Applied Physics Letters, 98(24), 2011
  • Wang, Kai and Chen, Feng and Allec, Nicholas and Yuan, Fang and Belev, George and Kasap, Safa and Karim, Karim S, Amorphous-selenium-based three-terminal x-ray detector with a gate, IEEE Electron Device Letters, 32(6), 2011, 782 - 784
  • Abbaszadeh, Shiva and Allec, Nicholas and Wang, Kai and Karim, Karim S, Low dark-current lateral amorphous-selenium metal--semiconductor--metal photodetector, IEEE Electron Device Letters, 32(9), 2011, 1263 - 1265
  • Goldan, AH and Tousignant, O and Laperrière, L and Karim, KS, Reduced photocurrent lag using unipolar solid-state photoconductive detector structures: Application to stabilized nip amorphous selenium, Applied Physics Letters, 96(5), 2010
  • Wang, Kai and Chen, Feng and Allec, Nicholas and Karim, Karim S, Fast lateral amorphous-selenium metal--semiconductor--metal photodetector with high blue-to-ultraviolet responsivity, IEEE Transactions on Electron Devices, 57(8), 2010, 1953 - 1958
  • Fang, Yuan and Allec, Nicholas and Karim, Karim S, Monte Carlo simulation of amorphous Selenium digital x-ray detectors: spatial dependence of energy absorption, Proc. CSCBCE, 5, 2010
  • Wang, Kai and Karim, Karim S, Silicon x-ray detector with integrated thin-film transistor for biomedical applications, IEEE Electron Device Letters, 31(2), 2010, 147 - 149
  • Izadi, Mohammad H and Tousignant, Olivier and Mokam, Melissa Feuto and Karim, Karim S, An a-Si active pixel sensor (APS) array for medical X-ray imaging, IEEE Transactions on Electron Devices, 57(11), 2010, 3020 - 3026
  • Sultana, Afrin and Wronski, Matthew M and Karim, Karim S and Rowlands, JA, Digital X-ray imaging using avalanche a-Se photoconductor, IEEE Sensors Journal, 10(2), 2010, 347 - 352
  • Adachi, MM and Anantram, MP and Karim, KS, Optical properties of crystalline- amorphous core- shell silicon nanowires, Nano letters, 10(10), 2010, 4093 - 4098
  • Sultana, Afrin and Karim, KS and Rowlands, JA, The effect of K-fluorescence reabsorption of selenium on the performance of an imaging detector for protein crystallography, physica status solidi (c), 6, 2009
  • Safavian, N and Izadi, MH and Sultana, A and Wu, D and Karim, KS and Nathan, A and Rowlands, JA, Noise analysis of a novel hybrid active-passive pixel sensor for medical X-ray imaging, physica status solidi (c), 6, 2009
  • Taghibakhsh, Farhad and Karim, Karim S and Belev, George and Kasap, Safa O, X-Ray detection using a two-transistor active pixel sensor array coupled to an a-Se X-Ray photoconductor, IEEE Sensors Journal, 9(1), 2009, 51 - 56
  • Karim, Karim, 2 Active Matrix Flat Panel Imagers (AMFPI) for Diagnostic Medical Imaging Applications, Medical Imaging: Principles, Detectors, and Electronics, 2009, 23 - 58
  • Wang, Kai and Chen, Feng and Belev, George and Kasap, Safa and Karim, Karim S, Lateral metal-semiconductor-metal photodetectors based on amorphous selenium, Applied Physics Letters, 95(1), 2009
  • Taghibakhsh, Farhad and Karim, Karim S, Two-transistor active pixel sensor readout circuits in amorphous silicon technology for high-resolution digital Imaging applications, IEEE Transactions on Electron Devices, 55(8), 2008, 2121 - 2128
  • Sultana, Afrin and Karim, KS and Rowlands, JA, Selenium-based amorphous silicon flat-panel digital X-ray imager for protein crystallography, Canadian Journal of Electrical and Computer Engineering, 33(3/4), 2008, 139 - 143
  • Taghibakhsh, Farhad and Karim, Karim S, Charge-Gated Thin-Film Transistors for High Resolution Digital Imaging Applications, IEEE Electron Device Letters, 29(8), 2008, 859 - 862
  • Amarir, Saîd and Al-Haddad, Kamal and Moradi, Saeed and Linder, Tamás and Gazor, Saeed and Sultana, Afrin and Karim, KS and Rowlands, JA and Lu, Yan and Payandeh, Shahram and others, de génie électrique et informatique, Can. J. Elect. Comput. Eng, 33(3/4), 2008
  • Taghibakhsh, Farhad and Khodami, Ida and Karim, Karim S, Characterization of short-wavelength-selective a-Si: H MSM photoconductors for large-area digital-imaging applications, IEEE Transactions on Electron Devices, 55(1), 2008, 337 - 342
  • Karim, Karim S and Khodami, Ida and Taghibakhsh, Farhad, a-Si: H Metal-Semiconductor-Metal (MSM) Photoconductor Detector for Biomolecular Imaging Applications, ECS Transactions, 13(2), 2008, 179 - 188
  • Adachi, Michael M and Kavanagh, Karen L and Karim, Karim S, Structural and electrical characteristics of nanocrystalline silicon prepared by hot-wire chemical vapor deposition on polymer substrates, Thin Solid Films, 516(21), 2008, 7418 - 7421
  • Khodami, Ida and Taghibakhsh, Farhad and Karim, Karim S, UV-enhanced a-Si: H metal--semiconductor--metal photodetector, IEEE Electron Device Letters, 29(9), 2008, 1007 - 1010
  • Sultana, Afrin and Reznik, Alla and Karim, Karim S and Rowlands, JA, Design and feasibility of active matrix flat panel detector using avalanche amorphous selenium for protein crystallography, Medical physics, 35(10), 2008, 4324 - 4332
  • Karim, Karim S and Izadi, Mohammed Hadi and Taghibakhsh, Farhad and Sanaie, Golnaz, Intelligent Pixel Architectures for Digital Medical Imaging Applications, ECS Transactions, 8(1), 2007, 289 - 293
  • Sanaie, Golnaz and Karim, Karim S, On-pixel voltage-controlled oscillator in amorphous-silicon technology for digital imaging applications, IEEE electron device letters, 28(1), 2007, 33 - 35
  • Adachi, Michael M and Kavanagh, Karen L and Karim, Karim S and others, Structural and electrical characteristics of microcrystalline silicon prepared by hot-wire chemical vapor deposition using a graphite filament, Journal of Vacuum Science & Technology A, 25(3), 2007, 464 - 467
  • Taghibakhsh, Farhad and Karim, Karim S, High dynamic range 2-TFT amplified pixel sensor architecture for digital mammography tomosynthesis, IET circuits, devices & systems, 1(1), 2007, 87 - 92
  • Izadi, Mohammad Hadi and Karim, Karim S, Noise optimisation analysis of an active pixel sensor for low-noise real-time X-ray fluoroscopy, IET Circuits, Devices & Systems, 1(3), 2007, 251 - 256
  • Ottaviani, Tony and Karim, Karim S and Nathan, Arokia and Rowlands, John A, Low noise signal-to-noise ratio enhancing readout circuit for current-mediated active pixel sensors, Journal of Vacuum Science & Technology A, 24(3), 2006, 770 - 773
  • Ottaviani, Tony and Karim, Karim S and Nathan, Arokia and Rowlands, John A, Papers from the 12th Canadian Semiconductor Technology Conference-Sensors and Microelectronic Devices-Low noise signal-to-noise ratio enhancing readout circuit for current-mediated active pixel, Journal of Vacuum Science and Technology-Section A, 24(3), 2006, 770 - 773
  • Taghibakhsh, F and Karim, KS and Madan, A, Papers from the 12th Canadian Semiconductor Technology Conference-Display and Imaging Technology-Low leakage a-Si: H thin film transistors deposited on glass substrates using hot-wire chemical, Journal of Vacuum Science and Technology-Section A, 24(3), 2006, 866 - 868
  • Izadi, Mohammad Hadi and Karim, Karim S, High dynamic range pixel architecture for advanced diagnostic medical X-ray imaging applications, Journal of Vacuum Science & Technology A, 24(3), 2006, 846 - 849
  • Goldan, Amir H and Karim, Karim S and Rowlands, John A, Single photon counter for digital x-ray mammography tomosynthesis, Journal of Vacuum Science & Technology A, 24(3), 2006, 854 - 859
  • Taghibakhsh, F and Karim, KS and Madan, A, Low leakage a-Si: H thin film transistors deposited on glass substrates using hot-wire chemical vapor deposition, Journal of Vacuum Science & Technology A, 24(3), 2006, 866 - 868
  • Karim, Karim S and Sanaie-Fard, G and Ottaviani, T and Izadi, MH and Taghibakhsh, F, Amplified pixel architectures in amorphous silicon technology for large area digital imaging applications, Journal of the Korean Physical Society, 48(91), 2006
  • Izadi, Mohammad Hadi and Karim, Karim S, Papers from the 12th Canadian Semiconductor Technology Conference-Display and Imaging Technology-High dynamic range pixel architecture for advanced diagnostic medical x-ray imaging applications, Journal of Vacuum Science and Technology-Section A, 24(3), 2006, 846 - 849
  • Goldan, Amir H and Karim, Karim S and Rowlands, John A, Papers from the 12th Canadian Semiconductor Technology Conference-Display and Imaging Technology-Single photon counter for digital x-ray mammography tomosynthesis, Journal of Vacuum Science and Technology-Section A, 24(3), 2006, 854 - 859
  • Karim, Karim S and Servati, P and Nathan, Arokia, High voltage amorphous silicon TFT for use in large area applications, Microelectronics journal, 35(3), 2004, 311 - 315
  • Nathan, Arokia and Kumar, Anil and Sakariya, Kapil and Servati, Peyman and Karim, Karim S and Striakhilev, Denis and Sazonov, Andrei, Amorphous silicon back-plane electronics for OLED displays, IEEE Journal of selected topics in quantum electronics, 10(1), 2004, 58 - 69
  • Karim, Karim S and Nathan, Arokia, Papers from the 11th Canadian Semiconductor Technology Conference-TFTs, Imaging, and Displays-Noise performance of a current-mediated amplified pixel for large-area medical imaging, Journal of Vacuum Science and Technology-Section A, 22(3), 2004, 1010 - 1014
  • Nathan, Arokia and Servati, Peyman and Karim, Karim S and Striakhilev, Denis and Sazonov, Andrei, Device physics, compact modeling, and circuit applications of a-Si: H TFTs, Thin Film Transistors: Materials and Processes Volume 1: a-Si: H Thin Film Transistors, 2004, 98 - 198
  • Karim, Karim S and Nathan, Arokia and Hack, Michael and Milne, William I, Drain-bias dependence of threshold voltage stability of amorphous silicon TFTs, IEEE Electron Device Letters, 25(4), 2004, 188 - 190
  • Karim, Karim S and Nathan, Arokia, Noise performance of a current-mediated amplified pixel for large-area medical imaging, Journal of Vacuum Science & Technology A, 22(3), 2004, 1010 - 1014
  • Tao, S and Karim, KS and Servati, P and Lee, C-H and Nathan, A, Large Area Digital X-ray Imaging, Sensors Update, 12(1), 2003, 3 - 49
  • Nathan, A and Servati, P and Karim, KS and Striakhilev, D and Sazonov, A, Thin film transistor integration on glass and plastic substrates in amorphous silicon technology, IEE Proceedings-Circuits, Devices and Systems, 150(4), 2003, 329 - 38
  • Karim, KS and Nathan, A and Rowlands, JA and Kasap, SO, X-ray detector with on-pixel amplification for large area diagnostic medical imaging, IEE Proceedings-Circuits, Devices and Systems, 150(4), 2003, 267 - 73
  • Servati, Peyman and Karim, Karim S and Nathan, Arokia, Static characteristics of a-Si: H dual-gate TFTs, IEEE Transactions on Electron Devices, 50(4), 2003, 926 - 932
  • Karim, Karim S and Nathan, Arokia and Rowlands, John Alan, Amorphous silicon active pixel sensor readout circuit for digital imaging, IEEE transactions on electron devices, 50(1), 2003, 200 - 208
  • Nathan, A and Servati, P and Karim, KS and Stryahilev, D and Sazanov, A, a-Si: H TFTs on Glass and Plastic, , 2003
  • Kumar, A and Sakariya, K and Servati, P and Alexander, S and Striakhilev, D and Karim, KS and Nathan, A and Hack, M and Williams, E and Jabbour, GE, Design considerations for active matrix organic light emitting diode arrays, IEE Proceedings-Circuits, Devices and Systems, 150(4), 2003, 322 - 8
  • Moez, KK and Karim, KS and Nathan, A, Amorphous silicon TFT pulse bias induced metastability, , 2002
  • Karim, Karim S and Nathan, Arokia and Rowlands, John A, Active pixel sensor architectures for large area medical imaging, Journal of non-crystalline solids, 299, 2002, 1250 - 1255
  • Karim, Karim S and Nathan, Arokia and Rowlands, John A, Active pixel sensor architectures in a-SiH for medical imaging, Journal of Vacuum Science & Technology A, 20(3), 2002, 1095 - 1099
  • Karim, KS and Nathan, A, On-Pixel Amorphous Silicon Amplifier for Digital Imaging, Integrated Opto-electronics, MJ Deen, D. Misra, J. Ruzyllo, Editors, The Electrochemical Society Proceedings, vol. PV2002-4, 2002, 313 - 332
  • Karim, KS and Nathan, A and Rowlands, JA, Feasibility of current mediated amorphous silicon active pixel sensor readout circuits for large area diagnostic and medical imaging, , 2002
  • Mohan, N and Karim, KS and Nathan, A, Design of multiplexer in amorphous silicon technology, Journal of Vacuum Science & Technology A, 20(3), 2002, 1043 - 1047
  • Karim, Karim S and Nathan, Arokia, Readout circuit in active pixel sensors in amorphous silicon technology, IEEE Electron Device Letters, 22(10), 2001, 469 - 471
  • Nathan, A and Park, B and Sazonov, A and Tao, S and Chan, I and Servati, P and Karim, K and Charania, T and Striakhilev, D and Ma, Q and others, Amorphous silicon detector and thin film transistor technology for large-area imaging of X-rays, Microelectronics Journal, 31(11), 2000, 883 - 891
  • Park, B and Karim, KS and Nathan, A, Intrinsic thin film stresses in multilayered imaging pixels, Journal of Vacuum Science & Technology A, 18(2), 2000, 688 - 692
  • Anis, Mohab and Garousi, Vahid and Daneshmand, Mojgan and Ejaz, Waleed and Givigi, Sidney and Habibi, Jalal and Heidari, Reza and Hu, Peng and Iqbal, Umar and Karim, Karim S and others, Amir Aghdam,
  • Rong, B and Burghartz, JN and Nanver, LK and Rejaei, B and van der Zwan, M and Lacour, SP and Jones, J and Suo, Z and Wagner, S and Film, Thin and others, High Microwave and Noise Performance of 0.17-m AlGaN--GaN HEMTs on High-Resistivity Silicon Substrates........... A. Minkoff, V. Hoël, S. Lepilliet, G. Dambrine, JC De Jaeger, Y. Cordier, F. Semond, F. Natali, and J. Massies 167 High Bandwidth and Low-Leakage Current InP--In Ga As--InP DBHTs on GaAs Substrates............................................................ YM Kim, Z. Griffith, MJW Rodwell, and AC Gossard 170 Materials and Processing,
  • Fang, Yuan and Karim, Karim S and Badano, Aldo, Radiation Detectors for Medical Imaging,
  • Abbaszadeh, Shiva and Karim, Karim S and Wang, Kai and Allec, Nicholas and Chen, Feng, High gain lateral amorphous selenium (a-Se) detector for medical imaging, Thursday May 20
  • Taghibakhsh, F and Karim, KS and Memis, OG and Katsnelson, A and Mohseni, H and Yan, M and Zhang, S and Hossain, T and Jin, N and Adesida, I and others, Molecular Electronics Reliable Organic Nonvolatile Memory Device Using a Polyfluorene-Derivative Single-Layer Film............................................ T.-W. Kim, S.-H. Oh, H. Choi, G. Wang, H. Hwang, D.-Y. Kim, and T. Lee 852 Microelectromechanical Systems (MEMS) A Compact, Low-Power, and Electromagnetically Actuated Microspeaker for Hearing Aids.... S.-S. Je and J. Chae 856,
  • Pereira, T and Oliveira, T and Cabeleira, M and Pereira, H and Almeida, V and Cardoso, J and Correia, C and Cao, Z and Ji, X and Wang, R and others, Deploying Sensors for Gravity Measurement in a Body-Area Inertial Sensor Network.... C.-H. Wu and Y.-C. Tseng 1522 Study on a Metal--Insulator--Silicon Hydrogen Sensor With LaTiON as Gate Insulator....................................,
  • Vijayan, A and Fuke, MV and Karekar, RN and Aiyer, RC and Aroutiounian, V and Arakelyan, V and Galstyan, V and Martirosyan, K and Soukiassian, P and Taylor, ZD and others, Implementation of Spreader Pose Control Using Dual-Electric Compasses................... S. Han, I. Kang, and J. Lee 69,
  • Szeles, Csaba and Fang, Yuan and Karim, Karim S and Badano, Aldo and Shikhaliev, Polad M and Barber, William C and Nygard, Einar and Iwanczyk, Jan S and Grodzicka, Martyna and Moszyński, Marek and others, Radiation Detectors for Medical Imaging,
  • Russ, M and Shankar, A and Jain, A and Nagesh, SV Setlur and Ionita, CN and Scott, C and Karim, KS and Bednarek, DR and Rudin, S, Quantitative comparison using Generalized Relative Object Detectability (G-ROD) metrics of an amorphous selenium detector with high resolution Microangiographic Fluoroscopes (MAF) and standard flat panel detectors (FPD), SPIE Medical Imaging, January 2016
  • Nano, Tomi and Escartin, Terenz and Karim, Karim and Cunningham, Ian A, A novel x-ray detector design with higher DQE and reduced aliasing: Theoretical analysis of x-ray reabsoprtion in detector converter material, SPIE Medical Imaging, January 2016, 978318 - 978318
  • Lopez Maurino, Sebastian and Badano, Aldo and Cunningham, Ian A and Karim, Karim S, Theoretical and Monte Carlo optimization of a stacked three-layer flat-panel x-ray imager for applications in multi-spectral diagnostic medical imaging, Society of Photo-Optical Instrumentation Engineers (SPIE) Conference Series, January 2016
  • Maurino, Sebastian Lopez and Badano, Aldo and Cunningham, Ian A and Karim, Karim S, Theoretical and Monte Carlo optimization of a stacked three-layer at-panel x-ray imager for applications in multi-spectral diagnostic medical imaging, SPIE Medical Imaging, January 2016
  • Ismailova, Elina and Karim, Karim and Cunningham, Ian A, Apodized-aperture pixel design to increase high-frequency DQE and reduce noise aliasing in x-ray detectors, SPIE Medical Imaging, January 2015
  • Scott, CC and Parsafar, A and El-Falou, A and Levine, PM and Karim, KS, High dose efficiency, ultra-high resolution amorphous selenium/CMOS hybrid digital X-ray imager, 2015 IEEE International Electron Devices Meeting (IEDM), January 2015, 30 - 6
  • Scott, Christopher C and Abbaszadeh, Shiva and Ghanbarzadeh, Sina and Allan, Gary and Farrier, Michael and Cunningham, Ian A and Karim, Karim S, Amorphous selenium direct detection CMOS digital x-ray imager with 25 micron pixel pitch, SPIE Medical Imaging, January 2014
  • Fang, Yuan and Badal, Andreu and Karim, Karim S and Badano, Aldo, Monte Carlo Modeling of the DQE of a-Se X-Ray Detectors for Breast Imaging, International Workshop on Digital Mammography, January 2014, 387 - 393
  • Mann, Ryan and Ghanbarzadeh, Sina and Karim, Karim S, System design of a low-cost digital x-ray detector, Humanitarian Technology Conference-(IHTC), 2014 IEEE Canada International, January 2014, 1 - 5
  • Shafique, Umar and Karim, Karim S, UV Organic Semiconductor Photoconductor with Low Dark Current at High Electric Field, MRS Proceedings, January 2014
  • Mann, Ryan and Cunningham, Ian A and Karim, Karim S, Characterization of a digital X-ray detector for region of interest tuberculosis screening, SPIE Medical Imaging, January 2013
  • Lindberg, GP and Tallman, RE and Abbaszadeh, S and Karim, KS and Rowlands, JA and Reznik, A and Weinstein, BA, Frustration of photocrystallization in amorphous selenium films and film-polymer structures near the glass transition, THE PHYSICS OF SEMICONDUCTORS: Proceedings of the 31st International Conference on the Physics of Semiconductors (ICPS) 2012, January 2013, 19 - 20
  • Hamouda, Ayman and Anis, Mohab and Karim, Karim S, Using segmented models for initial mask perturbation and OPC speedup, SPIE Photomask Technology, January 2013
  • Abbaszadeh, Shiva and Du, Zhechen and Allec, Nicholas and Karim, Karim S, Application of organic semiconductors in amorphous selenium based photodetectors for high performance X-ray imaging, SPIE Medical Imaging, January 2013
  • Abbaszadeh, Shiva and Allec, Nicholas and Karim, Karim S, Improving amorphous selenium photodetector performance using an organic semiconductor, Key Engineering Materials, January 2013, 451 - 454
  • Abbaszadeh, Shiva and Karim, Karim S and Karanassios, Vassili, A microfabricated, low dark current a-Se detector for measurement of microplasma optical emission in the UV for possible use on-site, SPIE Defense, Security, and Sensing, January 2013
  • Shin, Kyung-Wook and Karim, Karim S, Fabrication and characterization of a novel x-ray silicon detector, SPIE Medical Imaging, January 2013
  • Fang, Yuan and Badal, Andreu and Badano, Aldo and Karim, Karim S, Spatial resolution characteristics of a-Se imaging detectors using Monte Carlo methods with detailed spatiotemporal transport of x-rays, electrons, and electron-hole pairs under applied bias, SPIE Medical Imaging, January 2013
  • Shin, Kyung-Wook and Wang, Kai and Allec, Nicholas and Fang, Yuan and Karim, Karim S, Novel silicon x-ray detector with TFT readout, SPIE Medical Imaging, January 2012
  • Scott, Chris C and Allec, Nicholas and Karim, Karim S, A study of factors limiting spatial resolution using a 25 micron pixel pitch direct-detection amorphous selenium imaging system, SPIE Medical Imaging, January 2012
  • Khorasaninejad, M and Adachi, MM and Walia, J and Karim, KS and Saini, SS, Raman spectrum of core-shell silicon nanowires on different substrates, 2012 International Conference on Optical MEMS and Nanophotonics, January 2012
  • Fang, Yuan and Sharma, Diksha and Badal, Andreu and Karim, Karim S and Badano, Aldo, Monte Carlo simulation of a-se x-ray detectors for breast imaging: effect of nearest-neighbor recombination algorithm on swank noise, International Workshop on Digital Mammography, January 2012, 575 - 582
  • Allec, Nicholas and Abbaszadeh, Shiva and Lewin, John M and Karim, Karim S, Motion artifacts in dual-energy contrast-enhanced mammography, SPIE Medical Imaging, January 2012
  • Majid, Shaikh Hasibul and Wang, Kai and Allec, Nicholas and Shafique, Umar and Karim, Karim S, Characterization of gated selenium photo detector, SPIE Medical Imaging, January 2012
  • Lindberg, GP and Tallman, RE and Weinstein, BA and Abbaszadeh, S and Karim, KS and Reznik, A, Substrate-and interface-mediated photocrystallization in a-Se films and multi-layers, APS March Meeting Abstracts, January 2012
  • Abbaszadeh, Shiva and Allec, Nicholas and Karim, Karim S, High performance amorphous selenium lateral photodetector, SPIE Medical Imaging, January 2012
  • Hamouda, Ayman Yehia and Anis, Mohab and Karim, Karim S, AIR (aerial image retargeting): a novel technique for in-fab automatic model-based retargeting-for-yield, Proceedings of the Conference on Design, Automation and Test in Europe, January 2012, 1603 - 1608
  • Abbaszadeh, Shiva and Majid, Shaikh H and Allec, Nicholas and Karim, Karim S, Amorphous selenium photodetector on a flexible substrate for indirect conversion medical imaging, SPIE Medical Imaging, January 2012
  • Keshavarzi, Rasoul and Wang, Kai and Yazdandoost, Mohammad Y and Shin, Kyung-Wook and Chen, Feng and Majid, Shaikh Hasibul and Abbaszadeh, Shiva and Karim, Karim S, Performance of a prototype 32$times$ 32 pixel indirect x-ray imager based on a lateral selenium passive pixel sensor, SPIE Medical Imaging, January 2012
  • Fang, Yuan and Badal, Andreu and Karim, Karim S and Badano, Aldo, Spatio-temporal Monte Carlo modeling of a-Se detectors for breast imaging: energy-weighted Swank noise and detective quantum efficiency, SPIE Medical Imaging, January 2012
  • Abbaszadeh, Shiva and Allec, Nicholas and Karim, Karim S, Study of the transient response of PI/a-Se photodetectors for indirect conversion medical imaging, Nuclear Science Symposium and Medical Imaging Conference (NSS/MIC), 2012 IEEE, January 2012, 1287 - 1290
  • Allec, Nicholas and Abbaszadeh, Shiva and Karim, Karim S, Analysis of multilayer and single layer x-ray detectors for contrast-enhanced mammography using imaging task, SPIE Medical Imaging, January 2011, 796111 - 796111
  • Hamouda, Ayman Yehia and Word, James and Anis, Mohab and Karim, Karim S, Aerial image retargeting (AIR): achieving litho-friendly designs, SPIE Advanced Lithography, January 2011, 797411 - 797411
  • Hristovski, Christos and Goldan, Amir and Majid, Shaikh Hasibul and Wang, Kai and Shafique, Umar and Karim, Karim, Characterization and comparison of lateral amorphous semiconductors with embedded Frisch grid detectors on 0.18 μm CMOS processed substrate for medical imaging applications, SPIE Medical Imaging, January 2011
  • Majid, Shaikh Hasibul and Goldan, Amir H and Hadji, Bahman and Belev, George and Kasap, Safa and Karim, Karim S, Selenium coated CMOS passive pixel array for medical imaging, SPIE Medical Imaging, January 2011
  • Yazdandoost, Mohammad Y and Wang, K and Karim, Karim S, Photon quantum shot noise limited array in amorphous silicon technology for protein crystallography applications, SPIE Medical Imaging, January 2011
  • Shafique, Umar and Karim, Karim S, Lateral organic photodetectors for imaging applications, SPIE Medical Imaging, January 2011, 796103 - 796103
  • Abbaszadeh, Shiva and Allec, Nicholas and Wang, Kai and Chen, Feng and Karim, Karim S, Study of gain phenomenon in lateral metal-semiconductor-metal detectors for indirect conversion medical imaging, SPIE Medical Imaging, January 2011
  • Wang, Kai and Yazdandoost, Mohammad Y and Keshavarzi, Rasoul and Shin, Kyung-Wook and Hristovski, Christos and Abbaszadeh, Shiva and Chen, Feng and Majid, Shaikh Hasibul and Karim, Karim S, Integration of an amorphous silicon passive pixel sensor array with a lateral amorphous selenium detector for large area indirect conversion x-ray imaging applications, SPIE Medical Imaging, January 2011
  • Shin, Kyung-Wook and Wang, Kai and Reznic, Alla and Karim, Karim S, Cadmium zinc telluride detector for low photon energy applications, SPIE Medical Imaging, January 2010
  • Safavian, Nader and Yazdandoost, M and Wu, D and Izadi, MH and Karim, KS and Rowlands, JA, Investigation of gain non-uniformities in the two TFT current programmed amorphous silicon active pixel sensor for fluoroscopy, chest radiography, and mammography tomosynthesis applications, SPIE Medical Imaging, January 2010
  • Adachi, MM and Karim, KS, Fabrication of PECVD grown nip silicon nanowire solar cells, Photovoltaic Specialists Conference (PVSC), 2010 35th IEEE, January 2010, 003302 - 003305
  • Allec, Nicholas and Karim, Karim S, A balanced filterless K-edge energy window multilayer detector for dual energy computed tomography, SPIE Medical Imaging, January 2010
  • Goldan, AH and Wang, Kai and Chen, Feng and Karim, KS, Amorphous selenium lateral Frisch photodetector and photomultiplier for high performance medical x-ray and gamma-ray imaging applications, SPIE Medical Imaging, January 2010
  • Allec, Nicholas and Goldan, Amir H and Wang, Kai and Chen, Feng and Karim, Karim S, Amorphous silicon pin photodetector with Frisch grid for high-speed medical imaging, SPIE Medical Imaging, January 2010
  • Wang, Kai and Chen, Feng and Shin, Kyung-Wook and Allec, Nicholas and Karim, Karim S, Lateral amorphous selenium metal-semiconductor-metal photodetector for large-area high-speed indirect-conversion medical imaging applications, SPIE Medical Imaging, January 2010, 762217 - 762217
  • Yazdandoost, Mohammad Y and Shin, Kyung W and Safavian, Nader and Taghibakhsh, Farhad and Karim, Karim S, Photon counting pixel and array in amorphous silicon technology for large area digital medical imaging applications, SPIE Medical Imaging, January 2010
  • Yazdandoost, Mohammad Y and Wu, Dali and Karim, Karim S, Pixel electronic noise as a function of position in an active matrix flat panel imaging array, SPIE Medical Imaging, January 2010
  • Fang, Yuan and Badal, Andreu and Allec, Nicholas and Karim, Karim S and Badano, Aldo, Monte Carlo simulation of amorphous selenium imaging detectors, SPIE Medical Imaging, January 2010, 762214 - 762214
  • Wu, Dali and Safavian, Nader and Yazdandoost, Mohammad Y and Izadi, Mohammad Hadi and Karim, Karim S, Electronic noise comparison of amorphous silicon current mode and voltage mode active pixel sensors for large area digital x-ray imaging, SPIE Medical Imaging, January 2010
  • Allec, Nicholas and Karim, Karim S, Multilayer x-ray detector for contrast-enhanced digital subtraction mammography, SPIE Medical Imaging, January 2010
  • Adachi, Michael M and Wang, Kai and Chen, Feng and Karim, Karim S, Silicon nanowire metal-semiconductor-metal photodetectors, SPIE Medical Imaging, January 2010
  • Izadi, MH and Tousignant, O and Mokam, MF and Yazdandoost, M and Safavian, N and Mani, H and Laperriere, L and Karim, KS, Performance of a prototype amorphous silicon active pixel sensor array using a-Se for direct x-ray conversion, SPIE Medical Imaging, January 2010
  • Taghibakhsh, Farhad and Hunter, David M and Karim, Karim S and Belev, George and Kasap, Safa O and Verpakhovski, Vladimir and Yaffe, Martin J, Evaluation of the x-ray response of amorphous selenium coated 100-μm pitch a-Si active pixel sensors for tomosynthesis applications, SPIE Medical Imaging, January 2009
  • Wang, Kai and Reznik, Alla and Karim, Karim S, Fabrication and characterization of cerium oxide thin films for ultraviolet sensing applications, SPIE Optical Engineering+ Applications, January 2009
  • Tsang, S-H and Simard, K and Foulds, IG and Izadi, H and Karim, KS and Parameswaran, M, Thin film transistor (TFT) sensing elements fabricated in surface micromachined polymermems for a differential calorimetric flow sensor, Micro Electro Mechanical Systems, 2009. MEMS 2009. IEEE 22nd International Conference on, January 2009, 583 - 586
  • Adachi, MM and Shiri, D and Karim, KS and Anantram, MP, Modeling of silicon quantum dots for solar cell applications, Photovoltaic Specialists Conference (PVSC), 2009 34th IEEE, January 2009, 002226 - 002230
  • Goldan, AH and Hadji, Bahman and Karim, KS and DeCrescenzo, G and Rowlands, JA and Tousignant, O and Laperrière, L, A counting and integrating pixel readout chip for amorphous selenium direct radiation detectors for medical imaging applications, SPIE Medical Imaging, January 2009
  • Sultana, Afrin and Safavian, N and Izadi, MH and Karim, KS and Rowlands, JA, Characterization of bias induced metastability of amorphous silicon thin film transistor based passive pixel sensor switch and its impact on biomedical x-ray imaging application, SPIE Medical Imaging, January 2009
  • Wang, Kai and Chen, Feng and Belev, George and Kasap, Safa O and Karim, Karim S, Design and modeling of a lateral a-Se MSM photoconductor as indirect conversion X-ray imager, SPIE Optical Engineering+ Applications, January 2009
  • Goldan, AH and Fang, Y and Karim, KS and Tousignant, O and Mani, H and Laperriere, L, Amorphous selenium detector utilizing a Frisch grid for photon-counting imaging applications, Proc. SPIE, January 2009
  • Safavian, Nader and Yazdandoost, M and Wu, D and Sultana, A and Izadi, MH and Karim, KS and Nathan, A and Rowlands, JA, Characterization of current programmed amorphous silicon active pixel sensor readout circuit for dual mode diagnostic digital x-ray imaging, SPIE Medical Imaging, January 2009, 725815 - 725815
  • Taghibakhsh, Farhad and Karim, Karim S, Light controlled oscillators; pixel architecture for large area linear digital imaging using amorphous silicon, Electrical and Computer Engineering, 2008. CCECE 2008. Canadian Conference on, January 2008, 001279 - 001282
  • Taghibakhsh, F and Karim, KS, High resolution amplified pixel sensor architectures for large area digital mammography tomosynthesis (Honorable Mention Poster Award)[6913-136], PROCEEDINGS-SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, January 2008
  • Sultana, Afrin and Karim, Karim S and Rowlands, JA, Large area direct X-ray conversion detector for protein crystallography, Electrical and Computer Engineering, 2008. CCECE 2008. Canadian Conference on, January 2008, 000995 - 000998
  • Goldan, AH and Karim, KS, Unipolar charge sensing using Frisch grid technique for amorphous selenium radiation detectors, Optical Engineering+ Applications, January 2008
  • Goldan, AH and Karim, KS and Reznik, A and Caldwell, CB and Rowlands, JA, {} 1^{} 0^{} 3palladium seeds for permanent breast seed implant (PBSI) brachytherapy [6913-27], PROCEEDINGS-SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, January 2008
  • Karim, Karim S and Khodami, Ida and Taghibakhsh, Farhad, a-Si: H Metal-Semiconductor-Metal (MSM) Photoconductor Based Pixel Arrays for Biomolecular Imaging Applications, Meeting Abstracts, January 2008, 715 - 715
  • Goldan, AH and Karim, KS and Reznik, A and Caldwell, CB and Rowlands, JA, Photon counting readout pixel array in 0.18-μm CMOS technology for on-line gamma-ray imaging of 103palladium seeds for permanent breast seed implant (PBSI) brachytherapy, Medical Imaging, January 2008
  • Tsang, See-Ho and Ma, Abdul Haseeb and Karim, Karim S and Parameswaran, Ash and Leung, Albert M, Monolithically fabricated polymermems 3-axis thermal accelerometers designed for automated wirebonder assembly, Micro Electro Mechanical Systems, 2008. MEMS 2008. IEEE 21st International Conference on, January 2008, 880 - 883
  • Sultana, A and Reznik, A and Karim, KS and Rowlands, JA, Effect of anomalous scattering and K-fluroscence reabsorption on the performance of selenium, 2008 International Semiconductor Conference, January 2008, 193 - 196
  • Safavian, N and Karim, KS and Nathan, A and Rowlands, JA, A 3-TFT hybrid active-passive pixel with correlated double sampling CMOS readout circuit for real-time medical x-ray imaging, Solid-State Circuits Conference, 2008. ESSCIRC 2008. 34th European, January 2008, 122 - 125
  • Karim, KS and Taghibakhsh, F and Izadi, MH and Safavian, N and Wu, D, Current mode active pixel sensor architectures for large area digital imaging, 2008 International Conference on Microelectronics, January 2008, 433 - 436
  • Taghibakhsh, Farhad and Karim, Karim S, High resolution amplified pixel sensor architectures for large area digital mammography tomosynthesis, Medical Imaging, January 2008
  • Safavian, Nader and Chaji, G Reza and Karim, Karim S and Rowlands, John A, A novel hybrid active-passive pixel with correlated double sampling CMOS readout circuit for medical x-ray imaging, 2008 IEEE International Symposium on Circuits and Systems, January 2008, 3170 - 3173
  • Safavian, N and Wu, D and Karim, K and Nathan, Arokia, Transient response of a 3-TFT hybrid active-passive pixel with correlated double sampling CMOS readout circuit for real-time medical X-ray imaging, Microsystems and Nanoelectronics Research Conference, 2008. MNRC 2008. 1st, January 2008, 85 - 88
  • Taghibakhsh, Farhad and Adachi, Michael M and Karim, Karim S, Hot-wire deposited nanocrystalline silicon TFTs on plastic substrates, MRS Proceedings, January 2007
  • Taghibakhsh, Farhad and Karim, Karim S, Two-transistor active pixel sensor for high resolution large area digital x-ray imaging, 2007 IEEE International Electron Devices Meeting, January 2007, 1011 - 1014
  • Izadi, MH and Karim, KS, Noise optimization of an active pixel sensor for real-time digital x-ray fluoroscopy [6600-29], PROCEEDINGS-SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, January 2007
  • Taghibakhsh, F and Karim, KS, Amplified pixel sensor architectures for low dose computed tomography using silicon thin film technology (Honorable Mention Poster Award)[6510-142], PROCEEDINGS-SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, January 2007
  • Izadi, MH and Karim, KS, Noise optimization of an active pixel sensor for real-time digital x-ray fluoroscopy, SPIE Fourth International Symposium on Fluctuations and Noise, January 2007
  • Taghibakhsh, Farhad and Karim, Karim S, Fabrication and characterization of nickel amorphous silicon metal-semiconductor-metal photoconductors, 2007 Canadian Conference on Electrical and Computer Engineering, January 2007, 1664 - 1667
  • Taghibakhsh, F and Karim, KS, Amplified pixel sensor architectures for low dose computed tomography using silicon thin film technology, Medical Imaging, January 2007
  • Tse, WFL and Khodami, I and Adachi, MM and Wang, X and Kavanagh, K and Karim, KS, Characterization of Low Temperature P-Type Hydrogenated Microcrystalline Silicon Thin Films Deposited by Plasma Enhanced Chemical Vapor Deposition, 2007 Canadian Conference on Electrical and Computer Engineering, January 2007, 952 - 955
  • Goldan, Amir H and Ng, Li and Rowlands, JA and Karim, Karim S, Photon counting pixel architecture for x-ray and gamma-ray imaging applications, Medical Imaging, January 2007
  • Adachi, Michael Musashi and Taghibakhsh, Farhad and Kavanagh, Karen L and Karim, Karim S, Structural Analysis of Nanocrystalline Silicon Prepared by Hot-wire Chemical Vapor Deposition on Polymer Substrates, MRS Proceedings, January 2007
  • Adachi, Michael Musashi and Tse, Wing Fai Lydia and Cluff, Garnet and Kavanagh, Karen L and Karim, Karim S, Effects of HWCVD-Deposited Seed Layers on Hydrogenated Microcrystalline Silicon Films on Glass Substrates, MRS Proceedings, January 2006
  • Goldan, AH and Karim, KS and Rowlands, JA, Selective photon counter for digital x-ray mammography tomosynthesis (Honorable Mention Poster Award)[6142-193], PROCEEDINGS-SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, January 2006
  • Izadi, MH and Karim, KS and Nathan, A and Rowlands, JA, Low-noise pixel architecture for advanced diagnostic medical x-ray imaging applications, Medical Imaging, January 2006
  • Taghibakhsh, Farhad and Karim, KS, Hot-wire CVD a-Si: H TFT on plastic substrates, MRS Proceedings, January 2006
  • Goldan, Amir H and Karim, Karim S and Rowlands, John A, Selective photon counter for digital x-ray mammography tomosynthesis, Medical Imaging, January 2006
  • Khodami, I and Adachi, M and Malhotra, M and Taghibakhsh, F and Rowlands, J and Karim, K and Kavanagh, K, Light induced degradation in amorphous silicon photodiodes and implication for diagnostic medical imaging application [6142-102], PROCEEDINGS-SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, January 2006
  • Adachi, MM and Tse, Wfl and Karim, KS, Low Temperature Microcrystalline Silicon Solar Cells Prepared by Hot-Wire Chemical Vapor Deposition, 2006 IEEE 4th World Conference on Photovoltaic Energy Conference, January 2006
  • Karim, Karim S and Sanaie, Golnaz and Taghibakhsh, Farhad, Amorphous silicon pixel-level voltage controlled oscillator for digital imaging applications, Meeting Abstracts, January 2006, 1254 - 1254
  • Khodami, I and Adachi, MM and Malhotra, M and Taghibakhsh, F and Rowlands, JA and Karim, KS and Kavanagh, KL, Light induced degradation in amorphous silicon photodiodes and implication for diagnostic medical imaging application, Medical Imaging, January 2006
  • La Haye, Michelle L and Jung, Cory and Izadi, Mohammad H and Chapman, Glenn H and Karim, Karim S, Noise analysis of fault tolerant active pixel sensors with and without defects, Electronic Imaging 2006, January 2006, 606804 - 606804
  • Sanaie-Fard, Golnaz and Sanaie-Fard, Reza and Karim, Karim S, High Dynamic Range Pixel Amplifier Architecture in Amorphous Silicon Technology for Diagnostic X-Ray Imaging Applications, Thin Film Transistor Technologies (TFTT VII): Proceedings of the International Symposium, January 2005
  • Goldan, Amir H and Karim, Karim S and Rowlands, John A, Photon counting pixels in CMOS technology for medical X-ray imaging applications, Canadian Conference on Electrical and Computer Engineering, 2005., January 2005, 370 - 373
  • Jung, Cory and Izadi, Mohammad Hadi and La Haye, Michelle L and Chapman, Glenn H and Karim, Karim S, Noise analysis of fault tolerant active pixel sensors, 20th IEEE International Symposium on Defect and Fault Tolerance in VLSI Systems (DFT'05), January 2005, 140 - 148
  • Karim, KS and others, Noise analysis of a CMOS active pixel sensor for tomographic mammography, Fifth International Workshop on System-on-Chip for Real-Time Applications (IWSOC'05), January 2005, 167 - 171
  • Karim, Karim S and Yin, Sherman and Nathan, Arokia and Rowlands, John A, High-dynamic-range pixel architectures for diagnostic medical imaging, Medical Imaging 2004, January 2004, 657 - 667
  • Izadi, MH and Karim, KS, Pixel architectures for digital x-ray mammography in crystalline silicon technology, Electrical and Computer Engineering, 2004. Canadian Conference on, January 2004, 1719 - 1722
  • Ottaviani, Tony and Karim, KS, Custom column readout circuitry to extend the dynamic range of a-Si: H current mediated pixel amplifiers for large area diagnostic X-ray imaging applications, Electrical and Computer Engineering, 2004. Canadian Conference on, January 2004, 1711 - 1714
  • Nathan, Arokia and Sakariya, Kapil and Kumar, Anil and Servati, Peyman and Karim, Karim S and Striakhilev, Denis and Sazonov, Andrei, Amorphous silicon TFT circuit integration for OLED displays on glass and plastic, Custom Integrated Circuits Conference, 2003. Proceedings of the IEEE 2003, January 2003, 215 - 222
  • Karim, KS and Sakariya, K and Nathan, A, Threshold voltage performance of a-Si: H TFTs for analog applications, MRS Proceedings, January 2003
  • Karim, Karim S and Vygranenko, Yurii K and Avila-Munoz, Alfredo and Striakhilev, Denis A and Nathan, Arokia and Germann, Stephen and Rowlands, John A and Belev, George and Koughia, Cyril and Johanson, Robert and others, Active pixel image sensor for large-area medical imaging, Medical Imaging 2003, January 2003, 38 - 47
  • Nathan, Arokia and Striakhilev, Denis and Servati, Peyman and Sakariya, Kapil and Kumar, Anil and Karim, Karim S and Sazonov, Andrei, Low temperature a-Si: H pixel circuits for mechanically flexible AMOLED displays, MRS Proceedings, January 2003
  • Karim, KS and Vygranenko, YK and Avila-Munoz, A and Striakhilev, DA and Nathan, A and Germann, S and Rowlands, JA and Belev, G and Koughia, C and Johanson, R, Active pixel image sensor for large-area medical imaging [5030-05], PROCEEDINGS-SPIE THE INTERNATIONAL SOCIETY FOR OPTICAL ENGINEERING, January 2003, 38 - 47
  • Nathan, A and Sazonov, A and Striakhilev, D and Servati, P and Karim, KS, a-Si: H TFT Circuit Integration on Glass and Plastic Substrates, Thin Film Transistor Technologies...: Proceedings of the... International Symposium, January 2003
  • Jeyakumar, R and Karim, KS and Sivoththaman, S and Nathan, A, REACTIVE ION ETCHING AND VIA OPENING IN LOW PERMITTIVITY INTER-LEVEL DIELECTRIC FILMS FOR PIXELATED TFT ARRAYS, Thin Film Transistor Technologies VI: Proceedings of the International Symposium, January 2003
  • Karim, KS and Nathan, A and Rowlands, JA, Amorphous silicon active pixel sensor readout circuit architectures for medical imaging, MRS Proceedings, January 2002
  • Karim, KS and Nathan, A and Rowlands, JA, Amorphous silicon pixel amplifier with ΔVT compensation for low noise digital fluoroscopy, IEDm: international electron devices meeting, January 2002, 215 - 218
  • Nathan, A and Servati, P and Karim, KS, TFT circuit integration in a-Si: H technology, Microelectronics, 2002. MIEL 2002. 23rd International Conference on, January 2002, 115 - 124
  • Jeyakumar, R and Karim, KS and Sivoththaman, S and Nathan, A, Integration issues for polymeric dielectrics in large area electronics [TFTs], Microelectronics, 2002. MIEL 2002. 23rd International Conference on, January 2002, 543 - 546
  • Nathan, Arokia and Sakariya, K and Karim, KS and Servati, P and Kumar, Anil and Striakhilev, D, a-Si: H back-plane electronics for medical imaging and OLED displays, Semiconductor Electronics, 2002. Proceedings. ICSE 2002. IEEE International Conference on, January 2002, 15 - 21
  • Karim, Karim S and Servati, P and Mohan, N and Nathan, Arokia and Rowlands, John A, VHDL-AMS modeling and simulation of a passive pixel sensor in a-Si: H technology for medical imaging, Circuits and Systems, 2001. ISCAS 2001. The 2001 IEEE International Symposium on, January 2001, 479 - 482
  • Karim, KS and Nathan, A, Active pixel TFT array for digital imaging applications, Thin Film Transistor Technologies V: Proceedings of the International Symposium, January 2001
  • Mohan, N and Karim, KS and Prakash, S and Nathan, A, Stability issues in digital circuits in amorphous silicon technology, Electrical and Computer Engineering, 2001. Canadian Conference on, January 2001, 583 - 588
  • Karim, Karim S and Nathan, Arokia and Rowlands, John A, Alternate pixel architectures for large-area medical imaging, Medical Imaging 2001, January 2001, 35 - 46
  • Nathan, A and Sazonov, A and Murthy, RVR and Gu, ZH and Ma, Q and Park, B and Tao, S and Chan, I and Servati, P and Karim, KS, Amorphous silicon image sensor technology, SPIE proceedings series, January 2000, 691 - 698
  • Nathan, A and Park, B and Sazonov, A and Tao, S and Gu, ZH and Chan, I and Servati, P and Karim, K and Charania, T and Striakhilev, D and others, Thin Film imaging technology on glass and plastic, Microelectronics, 2000. ICM 2000. Proceedings of the 12th International Conference on, January 2000, 11 - 14
  • Nathan, A and Servati, P and Karim, KS, PROC. 23rd INTERNATIONAL CONFERENCE ON MICROELECTRONICS (MIEL 2002), VOL 1, Nl5, YUGOSLAVIA, 12-15 MAY, 2002, MIEL, January 1995
  • Ghanbarzadeh, Sina and Abbaszadeh, Shiva and Adachi, Michael and Karim, Karim S, Low dark current and high dynamic range a-Si: H MSM photodetector for large area medical imaging, Proc. of SPIE Vol, January
  • Iwanczyk, Jan S and Fang, Yuan and Karim, Karim S and Badano, Aldo, Monte Carlo Modeling of X-Ray Detectors for Medical Imaging, Radiation Detectors for Medical Imaging, , 46 manuscript pages
  • Adachi, Michael M and Khorasaninejad, Mohammedreza and Saini, Simarjeet S and Karim, Karim S, Optical Properties of Silicon Nanowires, UV-VIS and Photoluminescence Spectroscopy for Nanomaterials Characterization, , 385 manuscript pages
  • Nathan, Arokia and Karim, Karim S, Photon Detectors, MEMS: a practical guide to design, analysis, and applications, , 343 manuscript pages
  • Karim, Karim Sallaudin, Pixel architectures for digital imaging using amorphous silicon technology,
  • Goldan, AH and Tousignant, O and Rowlands, JA and Karim, KS, Solid-State Charpak Detector with Unipolar Time-Differential Pulse Response, January 2012,
  • Karim, Karim S and Abbaszadeh, Shiva, Radiation detector system and method of manufacture, January
  • Karim, Karim S and Wang, Kai and Goldan, Amirhossein, Method and apparatus for a lateral radiation detector, January
  • Karim, Karim Sallaudin and Taghibakhsh, Farhad, Device and pixel architecture for high resolution digital, January
  • Karim, Karim S and Goldan, Amirhossein, Method and apparatus for a radiation detector, January
  • Karim, Karim Sallaudin, Radiation detector with integrated readout, January
  • Karim, Karim S and Taghibakhsh, Farhad and Izadi, Mohammad Hadi, High gain digital imaging system, January
  • Karim, Karim S and Goldan, Amirhossein and Bahman, HAJI-KHAMNEH, Digitizer for a digital imaging system, January
  • Karim, Karim S and Allec, Nicholas, Multi-layer flat panel x-ray detector, January
  • Karim, Karim S, Multi-mode digital imaging apparatus and system, January
  • Nathan, Arokia and Karim, Karim S and Mohan, Nitin and Kumar, Anil and Sakariya, Kapil, Integrated multiplexer/de-multiplexer for active-matrix display/imaging arrays, January
  • Nathan, Arokia and Servati, Peyman and Karim, Karim S, Organic light emitting diode display having shield electrodes, January
  • Nathan, A and Servati, P and Karim, KS, Organic light emitting diode display haviong shield, January
  • Karim, KS and Nathan, A, Active pixel sensor for digital imaging, January
  • Nathan, Arokia and Karim, Karim, Active pixel sensor for digital imaging, January
  • Nathan, A and Karim, KS and Mohan, N and Sakariya, K and Kumar, A, Metastability insensitive integrated thin film multiplexer, January