JOSEPH S. SHOR, Ph.D
RESEARCH INTERESTS
- Analog circuits operating in harsh digital environments
- Low voltage and low power analog circuits for processors
- Methodologies and building blocks for analog circuits in pure digital processes
- Area-scaling of analog circuits
- Digital calibration and BIST (Built in self-test) of analog circuits
- Circuits for Power management
- Security Circuits
- Thermal Sensors
- Microsensors – Material Physics, Devices and Applications
EDUCATION
Columbia University, School of Arts and Sciences, NY, NY:
Ph.D, M.Phil, and M.S in Electrical Engineering, 5/93 and 1/88
Queens College of CUNY, Queens, NY: B.A. in Physics
PROFESSIONAL HISTORY
2015-present Associate Professor, Bar Ilan University, Faculty of Engineering
2013-2015 Adjunct Associate Professor, Bar Ilan University
2003-2015 Intel Corporation, Yakum, Israel
2010-2015 Principal Engineer - Analog
2004-2010 Senior Analog Engineer
· Manager and Lead analog designer– Led a team of 4 analog engineers
· Developed many novel analog circuits used across Intel worldwide
· Developed new thermal sensors for measuring on-die hot spots
· Developed filtered power supplies for analog and digital PLL's
· Developed analog circuits for power management and voltage regulation
· Developed techniques and methodologies for implementing analog circuits in pure digital processes. This included process-independent analog.
· Developed architecture and circuit techniques to scale analog circuits. This resulted in a thermal sensor which was 10x smaller than the previous generation and a BGREF which was 3X smaller. This type of scaling is very unusual in analog.
Saifun Semiconductor, Netanya, Israel
2003-2004 Staff Engineer
1999-2003 Principal Engineer
· Lead analog designer and manager.
· Developed analog circuits for the NROM memory- 2 physically separated bits/cell
· Ramped up the analog field in Saifun nearly from scratch
· Developed power supply circuits, voltage regulators, on-die charge pump, sense amplifiers, filters, bandgap circuits, Class AB drivers, etc.
· Mentored many young engineers and trained them in analog design. This included teaching circuit/analog courses.
· Member of the Saifun Corporate Staff.
1994-1999 Motorola Semiconductor Israel, Herzlia, Israel
Principal and Senior Circuit Design Engineer
· Designed analog and digital circuits for DSP applications
· Circuits included amplifiers, gm/C filters, off-chip drivers, process independent analog circuits, etc.
· Designed high-speed digital IO buffers and memory circuits
1992-1994 Kulite Semiconductor Products, Inc., Leonia, NJ
Senior Research Scientist
· In this 2.5 year period following my Ph.D., I worked on several government- funded research programs (see below). This included conceiving and writing research proposals, leading their implementation, and publishing the results.
· Led a team of 3 engineers and several technicians.
· Conducted several collaborations with Universities (see below) and government agencies.
· Research work included:
- Semiconductor Pressure sensors for high temperature environments
- Materials characterization
- Semiconductor processing
- Optoelectronic materials processing and characterization
- Silicon-on-insulator structures for microsensors.
1988-1992 Research Scientist
Conducted Research in microsensors while concurrently doing my Ph.D at Columbia University.
1/2-1993 Technion, Israel Institute of Technology, Haifa, Israel
Department of Materials Engineering
Visiting Scientist
1987-1992 Columbia University, New York, NY Microelectronics Sciences Laboratories
Graduate Research Assistant
1987-1988 IBM, T.J. Watson Research Center, Eastview, NY
Research Assistant
SPECIAL RECOGNITIONS
· Two of the IC thermal sensors I developed and published at Intel were listed as "State of the Art" smallest sensors by Prof. Kofi Makinwa of TU Delft (a top leader in thermal sensors and high performance analog), in K.A.A. Makinwa, "Temperature Sensor Performance Survey," [Online]. Available: http://ei.ewi.tudelft.nl/docs/TSensor_survey.xls - 2012.
· EE Times Article "Dispelling the myth about analog scaling", based on my ISSCC 2012 paper, Feb 2012.
· EE Times Article "Intel details Sandy Bridge at ISSCC", based on an ISSCC 2011 Paper on which I was a co-author, Feb, 2011.
· SBIR Program" 6H-SiC Pressure Sensors for High Temperature Applications" which I initiated was listed as an "SBIR Success Story"- 1996.
· NASA Certificate of Recognition for "Making SiC Semiconductor Devices Containing Porous Regions"- included in NASA Tech Briefs, 1996, based on SBIR Program I led.
· Trade Journal Note - "Porous SiC Expected to Yield Innovative Devices" in Technology Newsletter - "Electronic Design", Oct 24, 1996 based on SBIR Program I initiated.
· Trade Journal Note – "6H SiC Pressure Sensors aim for High Temperature Operation at up to 600C" in Technology Breakthrough Section, "Electronic Design", Jan 6, 1997, based on SBIR Program I initiated.
· EE Times Article "Single chip answers base-station needs" – highlight from ICSPAT '96, Oct 17, 1996, which I was a co-author.
· Recipient of Kulite Scholarship – 1990 –Columbia University and Kulite Semiconductor
· Paul Klapper Physics Prize – Queens College of CUNY, 1986
Papers:
Journal Papers1 / Takao Oshita, Joseph Shor, David E Duarte, Avner Kornfeld, Dror Zilberman, "Compact BJT-Based Thermal Sensor for Processor Applications in a 14 nm tri-Gate CMOS Process", in IEEE Journal of Solid-State Circuits, vol 50,3, pp. 799-807 (2015)
2 / Joseph Shor and Kosta Luria, " Miniaturized BJT-Based Thermal Sensor for Microprocessors in 32-and 22-nm Technologies", in IEEE Journal of Solid State Circuits, Nov 2013, pp 2860-2867 (2013)
3 / Marcelo Yuffe, Moty Mehalel, Ernest Knoll, Joseph Shor, Tsvika Kurts, Eran Altshuler, Eyal Fayneh, Kosta Luria, and Michael Zelikson "A Fully Integrated Multi-CPU, Processor Graphics, and Memory Controller 32-nm Processor" - IEEE Journal of Solid State Circuits, JSSC Jan 2012 pp. 194-206 - ISSCC Special Issue invited (2012)
4 / J.S. Shor, A.D. Kurtz, I. Grimberg, B.Z. Weiss, and R.M. Osgood, "Dopant Selective Etch Stops in 6H and 3C SiC", Journal of Applied Physics 81,3 (1997).
5 / J.S. Shor, L. Bemis, A.D. Kurtz, I. Grimberg, B.Z. Weiss, M.F. Macmillan and W.J. Choyke, “Characterization of Nanocrystallites in Porous P-type 6H-SiC”, Journal of Applied Physics 76, 4045 (1994).
6 / J. L. Davidson, J.S. Shor, D. Wur and A.D. Kurtz,“Diamond Resistors Fabricated Monolithically on Diamond Film Substrate”, J. Electrochem. Soc. 141, 3522 (1994)
7 / J.S. Shor, L. Bemis and A.D. Kurtz, "Characterization of Monolithic n-type 6H-SiC Piezoresistive Sensing Elements", IEEE Trans. Electron Devices, 41 , 661 (1994).
8 / J. S. Shor, R. A. Weber, L. G. Provost, D. Goldstein and A. D. Kurtz, "High Temperature Ohmic Contact Metallizations for n-type 3C-SiC", Journal of the Electrochemical Society 141, 579 (1994).
9 / J. S. Shor and A. D. Kurtz, "Photoelectrochemical Etching of 6H-SiC,Journal of the Electrochemical Society 141, 778 (1994).
10 / J.S. Shor, D. Goldstein and A.D. Kurtz, "Characterization of n-type beta-SiC as a Piezoresistor", IEEE Transactions on Electron Devices 40, 1093 (1993).
11 / J.S. Shor, I. Grimberg, B.Z. Weiss, and A.D. Kurtz, "Direct Observation of Porous SiC Formed by Anodization in HF", Applied Physics Letters 62, 2836 (1993).
12 / J.S. Shor and R.M. Osgood Jr., "Broad Area Photoelectrochemical Etching of SiC", Journal of Electrochemical Society 140, L123 (1993).
13 / J.S. Shor, X.G. Zhang and R.M. Osgood, "Laser Assisted Photoelectrochemical Etching of n-type beta-SiC", Journal of the Electrochemical Society, 139, 1213 (May 22, 1992).
14 / J.S. Shor, R.M. Osgood and A.D. Kurtz, "Photoelectrochemical Conductivity Selective Etch Stops in SiC", Applied Physics Letters 60, 1001 (1992).
Papers in Top International Conferences
1 / Kosta Luria, Joseph Shor, Michael Zelikson, Alex Lyakhov, "Dual-use low-drop-out regulator/power gate with linear and on-off conduction modes for microprocessor on-die supply voltages in 14nm", IEEE International Solid- State Circuits Conference, Digest of Technical Papers, ISSCC 2015
2 / J. Shor, K. Luria and D. Zilberman, Ratiometric BJT-based Thermal Sensor in 32nm and 22nm Technologies, - International Solid State Circuits Conference- ISSCC , 2012 - Digest of Technical Papers, pp.210.
3 / Marcelo Yuffe, Moty Mehalel, Ernest Knoll, Joseph Shor, Tsvika Kurts, "A Fully Integrated Multi-CPU, GPU and Memory Controller 32nm Processor",- International Solid State Circuits Conference- ISSCC 2011 - Digest of Technical Papers
4 / E. Maayan, R. Dvir, J.S. Shor, Y. Polansky, Y. Sofer, I. Bloom, D. Avni, B. Eitan, Z. Cohen, M. Meyassed, Y. Alpern, H. Palm, E. Stein, P. Halibach, D. Caspary, S. Reidel, and R. Knofler, “A 512Mb NROM Flash Data Storage Memory with 8MB/s Data rate”, in International Solid State Circuits Conference - ISSCC 2002 Digest of Technical Papers, Publisher: Univ. of Toronto, Toronto, Canada, Feb. 2002.
5 / J.S. Shor, Y. Afek and E. Engel, "IO Buffer for High Performance, Low Power Applications", Proceeding of the 1997 Custom Integrated Circuits Conference- CICC (IEEE Press, 1997).
Papers Presented and Published in Refereed International Conferences
1 / Joseph Shor and Kosta Luria, Evolution of Thermal Sensors in Intel Processors from 90nm to 22nm,2012 IEEE 27-th Convention of Electrical and
Electronics Engineers in Israel, Nov. 2012.
2 / J. S. Shor, "Low Noise Linear Voltage Regulator for Use as an on-chip PLL Supply in Microprocessors", in IEEE International Symposium on Circuits and Systems, Paris France, May, 2010.
3 / Kosta Luria and Joseph Shor, "Miniaturized CMOS Thermal Sensor Array for Temperature Gradient Measurement in Microprocessors", IEEE International Symposium on Circuits and Systems, Paris France, May, 2010.
4 / Joseph Shor, "Voltage Regulator Circuits for Low-Jitter PLL’s with High PSSR (>40dB) in a Purely Digital 65nm Process", in IEEE COMCAS, Tel Aviv, Israel, 2008
5 / Shor, J.S.; Polansky, Y.; Sofer, Y.; Maayan, E. "Self-regulated four-phased charge pump with boosted wells", ISCAS '03. Proceedings of the 2003 International Symposium on Circuits and System.
6 / J. S. Shor, Y. Sofer, Y. Polansky, and E. Maayan, “ Low Power Voltage Regulator For EPROM Applications” ISCAS 2002: International Symposium on Circuits and Systems, May 26-29, 2002, Phoenix Arizona.
7 / V. Koifman, Y. Afek and J.S. Shor; “Circuit Methods for the Integration of Low Voltage (1.1-1.8V) Analog Functions on System-on-a-Chip IC’s in a Single Poly CMOS Process” Proceedings of ISLPED 99: International Symposium on Low Power Electronics and Design, Aug 16-19, 1999.
8 / J.S. Shor, V. Koifman and Y. Afek, "Novel Method to Compensate for Resistor Non-Linearities and its Application to the Integration of Analog Functions on System-on-a-Chip IC's" ISCAS 1999: IEEE Circuits and Systems Conference, May 30 – June 2, 1999.
9 / Y. Salant, O. Norman, U. Dayan, N. Sivan, B. Perlman, N. Benayahu,, Y. Tsayeg, E. Zmora, J.S. Shor, E. Salamon, “A Dual Core Engine for Embedded Applications” in The Proceedings of the Ninth International Conference on Signal Processing Applications and Technology, Sept 13-16, 1998.
10 / E. Engel, M. Tarrab, Y. Amon, L. Belotserkovsky, E. Borowitz, D. Kuzmin, D. Moshe, E. Pisek and J.S. Shor, “ DSP56305 – Motorola New Optimized Single-Chip DSP for GSM Basestation Applications”;, in The Proceedings of the International Conference on Signal Processing Applications and Technology, 1996.
11 / J.S. Shor, I. Grimberg, B.Z. Weiss, and A.D. Kurtz, "Photoelectrochemical Etching of 6H-SiC", Second International Symposium on Electrochemical Applications in Electronics, 183rd Electrochemical Society Conference, Honolulu, Hawaii, May 16-21, 1993.
12 / J.L. Davidson, J.S. Shor, D. Wur and A.D. Kurtz, "Diamond Resistors Fabricated Monolithically on Diamond Film Substrates",Third International Symposium on Diamond Materials, 183rd Electrochemical Society Conference, Honolulu, Hawaii, May 16-21, 1993.
13 / J. S. Shor, L. Bemis, A. D. Kurtz, M. F. Macmillan, W. J. Choyke, I. Grimberg and B. Z. Weiss, "Characterization of the Microstructural and Optical Properties of Porous SiC", Proceedings of the Fifth International Conference on SiC and Related Materials, Washington, DC, Nov. 1-3 1993.
14 / L. Bemis, J. S. Shor and A. D. Kurtz, "Monolithic Piezoresistive Stress Sensing Elements in 6H-SiC", Proceedings of the Fifth International Conference on SiC and Related Materials, Washington, DC, Nov. 1-3 1993.
15 / J. S. Shor, R. S. Okojie, and A. D. Kurtz, "Photoelectrochemical Etching and Etch-Stops in 6H-SiC", Proceedings of the Fifth International Conference on SiC and Related Materials, Washington, DC, Nov. 1-3 1993.
16 / J.S. Shor, D. Goldstein, A.D. Kurtz and R.M. Osgood, Jr. , "SiC Device Development for High Temperature Sensor Applications", 1992 NASA High Temperature Measurement Conference Proceedings, NASA Langley, Hampton, Va, April 12-13 1992, published in conference proceedings.
17 / J.S. Shor, R.A. Weber, L.G. Provost, D. Goldstein, A.D. Kurtz, "High Temperature Ohmic Contact Metallizations for n-type 3C-SiC Sensors" in Wide Band-Gap Semiconductors proceedings of the Fall, 1991 Materials Research Society Conference, Dec. 2-6, 1991, Boston, Mass. (Mat. Res. Soc. Press, Boston, Mass., 1992).
18 / J.S. Shor, X.G. Zhang, R.M. Osgood, and A.D. Kurtz; "Photoelectrochemical Etching and Dopant Selective Etch Stops in SiC", in Amorphous and Crystalline SiC IV ed. by C. Y. Yang, M. M. Rahman and G. L. Harris (Springer-Verlag, Berlin Heidelberg, 1992) p. 356.
19 / J.S. Shor, D. Goldstein and A.D. Kurtz, "Sensor Properties of n-type 3C-SiC", in Amorphous and Crystalline SiC III, Ed. by G. L. Harris, M. G. Spencer and C. Y. Yang (Springer Verlag, Berlin Heidelberg, 1992) p. 111.
20 / J.S. Shor, X.G. Zhang, M.N. Ruberto and R.M. Osgood, "Surface Micromachining of beta-SiC Using Laser-Assisted Photoelectrochemical Etching", in Amorphous and Crystalline SiC III, Ed. by G. L. Harris, M. G. Spencer and C. Y. Yang (Springer Verlag, Berlin Heidelberg, 1992) p. 191.
21 / J.S. Shor, D. Goldstein and A.D. Kurtz, "Evaluation of beta-SiC for Sensors", in Proceedings of the 1991 International Conference on Solid State Sensors and Actuators June 22-26, 1991, p. 912-915.
22 / J.S. Shor, X.G. Zhang and R.M. Osgood, "Photoelectrochemical Etching of beta-SiC", Electrochemical Soc. Extended Abstracts 91-1, May 1991.
23 / X.G. Zhang, J.S. Shor, M.N. Ruberto, M.T. Schmidt, and R.M. Osgood, "Laser Electrochemical Etching of SiC", in The 1990 Proceedings of the State of the Art Program on Compound Semiconductors, (Electrochemical Society Press, 1990).
24 / J.S. Shor, D. Goldstein and A.D. Kurtz,"Characterization of the Gauge Factor of n-type beta-SiC", Electrochem. Soc. Extended Abstracts 90-1, May 1990.
25 / D. Goldstein, J.S. Shor and A.D. Kurtz,"TCR of n-type and n+ beta-SiC", Electrochemical Soc. Extended Abstracts 90-1, May 1990.
DTTC (Design and Test Technology Conference) and ICTC (Intel Circuit Technology Conference) - (Refereed International Intel Conferences - acceptance rate < 25%)
1 / Kosta Luria and Joseph Shor, "Frequency-based Digital Thermal Sensor", presented at DTTC 2010 (Design and Test Technology Conference)
2 / Joseph Shor, "Analog DFT and DFM Circuits in Sandy Bridge", presented at DTTC 2010
3 / Joseph Shor, "SFR Voltage Regulator for Low Noise PLL’s with High Power Supply Rejection Ratio", presented at DTTC 2007
4 / Kosta Luria and Joseph Shor, "Miniaturized CMOS Thermal Sensor Array for Measuring Hot Spots in Microprocessors", presented at DTTC 2007
5 / Joseph Shor, "Low Noise Voltage Regulator Circuits for Low-Jitter PLL’s", presented at ICTC 2008 (International Circuit Technology Conference)
6 / Joseph Shor, "Learnings and advances of the SFR circuits for 1264 and 1266 processes", presented at ICTC 2006
7 / J. Shor, "Flicker Noise Effects on Analog Circuits in Intel Microprocessors", published at DTTC 2007
8 / J. Shor, "Voltage Regulator Architecture for Yonah PLL Power Supply", published at DTTC 2004
Invited Publications and Presentations:
1 / J.S. Shor, "Application of Wide Bandgap Semiconductors in High Temperature Microsensors" presented at the National Academy of Sciences, Washington, DC, for the National Research Council, Committee on Materials for High Temperature Semiconductor Devices, Sept. 29, 1993 - results published in a report to determine funding policy.
2 / Book Chapter: J.S. Shor- "Electrochemical Etching of SiC", in "Properties of SiC" ed. by G.L. Harris (IEE Press, EMIS Materials Science Series, 1995).
3 / "Making SiC Semiconductor Devices Containing Porous Regions" , published in NASA Tech Briefs, Aug 1996, p. 88.
4 / M.N. Ruberto, R. Scarmazzino, J.S. Shor and R.M. Osgood; "Microphotoelectrochemical Etching", Presented at the Electrochemical Microfabrication Symposium, Electrochemical Soc. Conference, Phoenix AZ, Oct. 13-18, 1991 and published in the conference proceedings.
5 / J. Shor "Compact Thermal Sensors in Intel Processors from 90nm to 22nm", Columbia University Integrated Systems Labs, Special Seminar, Feb 2014.
6 / J. S. Shor, "Micromachining Methods for and Characterization of 6H-SiC Piezoresistive Sensing Elements", given at Technion, IIT, Dept. of Mats. Eng., Jan 31, 1993.
ISSUED US Patents: