http://acsweb.ucsd.edu/~j7sim/Joonseop%20Sim.jpg

JOONSEOP SIM

Senior Researcher, R&D Div. | SK-Hynix

PhD Candidate, Electrical and Computer Engineering
University of California, San Diego

email j7sim (at) ucsd . edu
office EBU3B 2148

Google Scholar | Resume (Last updated Dec 2017)

Education
B.S., MSE, Yonsei University in South Korea, 2004
M.S., MSE, Seoul National University in South Korea, 2006

Ph.D student., ECE, UCSD, 2015~Now

Research Career in SK-Hynix
- 2007-2008, GeSbTe Cell Characteristics analysis in Phase-Change-RAM
- 2008-2009, Process Integration of Phase-Change-RAM
- 2009-2011, Layout and Electrical Design Rule in Phase-Change-RAM
- 2011-2013, Layout and Electrical Design Rule in Spin-Transfer-Torque-RAM
- 2013-2014, Cell and Peripheral Transistor characteristics in Spin Transfer Torque RAM
- 2014-2015, Failure Analysis in Spin-Transfer-Torque-RAM

- 2015-Now,  Company scholarship program as PhD student in UCSD (http://seelab.ucsd.edu/)

Research Awards and Honors
- Excellent Engineer Award from CEO, 2012
- Selected as Company Scholarship for Ph.D. course, 2014

Publication

Journal & Conference

- Joonseop Sim, Mohsen Imani, Woojin Choi, Yeseong Kim, Tajana Rosing, "LUPIS: Latch-Up Based Ultra Efficient Processing-in-Memory System", IEEE International Symposium on Quality Electronic Design (ISQED), 2018

- Joonseop Sim, Mohsen Imani, Yeseong Kim, Tajana Rosing, “Enabling Efficient System Design Using VerticalNanowire Transistor Current Mode Logic”, IEEE International Conference on Very Large Scale Integration (VLSI-SoC), 2017

- Dayeh, S. A., Chen, R., Ro, Y. G., & Joon Seop Sim, Progress in doping semiconductor nanowires during growth. Materials Science in Semiconductor Processing. (2016)

- Joon Seop Sim, Jin Shi Zhao, Hyun Ju Lee, Keun Lee and Cheol Seong Hwang, “Characteristics of polycrystalline SrRuO3 thin film electrodes for metal-organic chemical vapor-deposited Pb(Zr0.2Ti0.8)O3 thin films”, J. Electrochem. Soc., 153 (11), C777 (2006)

- Jin Shi Zhao, Joon Seop Sim, Hyun Ju Lee, Dong-Yeon Park, and , Cheol Seong Hwang, "Investigation of the Deposition Behavior of a Lead Oxide Thin Film on Ir Substrates by Liquid Delivery Metallorganic Chemical Vapor Deposition", Electrochemical and Solid-State Letters, 9 (2) C29-C31 (2006).

- Jin Shi Zhao, Joon Seop Sim, Hyun Ju Lee, Dong-Yeon Park, Gyu Weon Hwang, Keun Lee, and Cheol Seong Hwang, "Characterization of PbxPty Alloy Formation on a Pt Substrate during Liquid-Delivery MOCVD of Pb(Zr,Ti)O3 Thin Films", J. Electrochem. Soc., Vol. 153 (5) F81-F86 (2006).

- Jin Shi Zhao, Hyun Ju Lee, Keun Lee, Joon Seop Sim, and Cheol Seong Hwang, "Influence of the Pt Top Electrode Annealing Procedure on the Ferroelectric Property of MOCVD Pb(Zr0.2Ti0.8)O3 Thin Films", Electrochemical and Solid-State Letters, 9 (7) F69-F72 (2006).

- Jin Shi Zhao, Hyun Ju Lee, Joon Seop Sim, Keun Lee, and Cheol Seong Hwang, "Ferroelelctric and reliability properties of metal-organic chemical vapor deposited Pb(Zr0.15Ti0.85)O3 thin films grown in the self-regulation process window", Appl. Phys. Lett, 88, 172904 (2006)

- Zhao, J.S., Sim, J.S., Lee, H.J., Park, D.Y. and Hwang, C.S., 2005. A study of liquid delivery MOCVD of lead oxide thin films on Pt and Ir substrates. Journal of The Electrochemical Society, 152(5), pp.C277-C282.

Patents

- US patents

- Electronic device and method for fabricating the same

JS Sim, SP Song, YI Jae-Yun - US Patent 9,293,507, 2016

- Semiconductor integrated circuit apparatus and method of manufacturing the same

JS Sim - US Patent 9,224,832, 2015

- Semiconductor integrated circuit apparatus and method of manufacturing the same

JS Sim - US Patent App. 14/945,964, 2015

- Semiconductor integrated circuit apparatus and method of manufacturing the same

JS Sim - US Patent App. 14/946,035, 2015

- Electronic devices having semiconductor memories

YI Jae-Yun, SP Song, JS Sim - US Patent 9,171,889, 2015

- Semiconductor integrated circuit device, method of manufacturing the same, and method of driving the same

MS Kim, SG Kim, NK Park, SC Kim, G Sok, JS Sim… - US Patent 8,934,294, 2015

- Semiconductor intergrated circuit device, method of manufacturing the same, and method of driving the same

MS Kim, SG Kim, NK Park, SC Kim, G Sok, JS Sim… - US Patent 8,917,545, 2014

- Electronic device and method for fabricating the same

JS Sim - US Patent App. 14/323,962, 2014

- Semiconductor intergrated circuit device, method of manufacturing the same, and method of driving the same

MS Kim, SG Kim, NK Park, SC Kim, G Sok, JS Sim  - US Patent 8,693,241, 2014

- Phase-change random access memory device and method of manufacturing the same

JS Sim, JH Son, DW Lee, YH Oh - US Patent App. 13/339,691, 2013

-Other patents

- 3 China patents, 10 Korean patents

  - Application Number :
- China : 201110443623.2 201210195688.4 201310548105.6
- KR : 20140028323 20130097674 20130116116 20110133611 20110069624 20130064579 20140028323 20080091539 20080112114 20080127357


Poster

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Joon Seop Sim, Jin Shi Zhao, Hyun Ju Lee, Woo Young Park and Cheol Seong Hwang, "Growth characteristics of metal-organic chemical vapor deposited Pb(Zr,Ti)O3 fimls ono SrRuO3 electrodes", 2005 MRS fall meeting, Hynes Convention Center & Sheraton Boston Hotel, Boston, MA, Nov. 28 - Dec. 2, 2005.

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Joon Seop Sim, Jin Shi Zhao, Hyun Ju Lee, Cheol Seong Hwang, “Deposition Characterization of Lead Oxide Thin Film on Pt and Ir Substrates by Liquid Delivery Metal-Organic Chemical Vapor Deposition”, 한국세라믹학회 2004 추계연구 발표회, 군산대학교, 10월 15일-16일, 2004

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Joon Seop Sim, Jin Shi-Zhao, Dong-Yeon Park, Hyun Ju Lee and Cheol Seong Hwang, “The Effects of Zirconium Concentration on Self Regulation Mechanism for Pb(ZrxTi1-x)O3 and PbTiO3 Thin Films Deposited by Liquid-Delivery Metal-organic Chemical Vapor Deposition”, poster, The 5th Korea-Japan Conference on Ferroelectricity, Hoam Convention Center, Seoul National University, Seoul, Korea, August 18-21, 2004

- Jin Shi Zhao,
Joon Seop Sim, Hyun Ju Lee, Dong-Yeon Park, and Cheol Seong Hwang, “A Study On The Deposition Behavior Of A Lead Oxide Thin Film On Pt And Ir Substrates By Liquid Delivery Metal-Organic Chemical Vapor Deposition For Pb(Zr,Ti)O3 Film Growth”, The 17th International Symposium on Integrated Ferroelectrics, Hotel Equatorial, Shanghi, China, April 17-20, 2005

- Jin Shi Zhao,
Joon Seop Sim, Hyun Joo Lee, Dong-Yeon Park and Cheol Seong Hwang, “A study on the deposition behavior of a lead oxide thin film on Pt and Ir substrate by liquid dlivery metal-organic chemical vapor deposition for Pb(Zr,Ti)O3 film growth”, The 1st SNU-UT Student Joint Workshop, Inter-University Semiconductor Research Center, Seoul National University, Seoul, Korea, November 18-19, 2004

- Jin Shi-Zhao,
Joon Seop Sim, Dong-Yeon Park, Hyun Ju Lee and Cheol Seong Hwang, “Deposition Characteristics of Pb(ZrxTi1-x)O3 and PbO Thin Films on Pt and Ir Thin Film Substrates by Liquid Delivery Metal-organic Chemical Vapor Deposition”, poster, The 5th Korea-Japan Conference on Ferroelectricity, Hoam Convention Center, Seoul National University, Seoul, Korea, August 18-21, 2004.

- Invited, Keun Lee, Hyun Ju Lee, Jin Shi Zhao,
Joon Seop Sim, and Cheol Seong Hwang “Ferroelectric and reliability properties of metal-organic chemical vapor deposited Pb(Zr0.15Ti0.85)O3 thin films grown in the self-regulation process window”, The 6th Japan-Korea Conference on Ferroelectrics (JKC-FE06), Tohoku Univ., Japan, Aug. 17-20, 2006.

- Hyun Ju Lee, Jin Shi Zhao,
Joon Seop Sim, Dong Yeon Park and Cheol Seong Hwang, "Characterization of PbxPty alloy formation during deposition of Pb(Zr,Ti)O3 thin films by liquid delivery metal-organic chemical vapor deposition", 2005 MRS fall meeting, Hynes Convention Center & Sheraton Boston Hotel, Boston, MA, Nov. 28 - Dec. 2, 2005

- Jin Shi Zhao, Hyun Ju Lee,
Joon Seop Sim, Keun Lee, Lin Shan Dai, Gyu Weon Hwang and Cheol Seong Hwang, "The Effect Of Precursor Input Ratio Within Self-Regulation Region On Electrical Properties Of Pb(Zr,Ti)O3 Thin Films", 18th International Symposium on Integrated Ferroelectrics -ISIF 2006, Honolulu, Hawaii, USA, April 23-27, 2006.