Kyungwook Chang

Assistant Professor, Sungkyunkwan University

Aug 2014 - May 2019

Georgia Institute of Technology, Atlanta

Ph.D. in Electrical and Computer Engineering
Advisor: Dr. Sung Kyu Lim

Sep 2007 - Feb 2010

Seoul National University, Seoul

M.S. in Electrical Engineering and Computer Science
Advisor: Dr. Kiyoung Choi

Mar 2003 - Aug 2007

Seoul National University, Seoul

B.S. in Electrical and Computer Engineering

Feb 2021 - Present

Assistant Professor

CICE, Sungkyunkwan University, Suwon, South Korea

Jun 2019 - Jan 2021

CAD Engineer

SEG-CAD & CSG, Apple Inc., Austin, TX

CAD solutions for electromigration and power rail analysis

• Vectorless dynamic rail analysis methodology improvement/development
• Building CAD infrastructure for rail analysis
• Tool enhancement and enablement for advanced technology nodes

Aug 2014 - May 2019

Graduate Research Assistant

Georgia Tech Computer Aided Design Laboratory, Georgia Institute of Technology, Atlanta, GA
Advisor: Dr. Sung Kyu Lim

Design and tool solutions for low-power and reliable 3D ICs

• Design methodologies for deep neural network 3D ICs
• Physical design flow development for 3D ICs
• Analysis and physical design solutions for low-power 3D ICs in advanced technology nodes
• Analysis and optimization methodologies of power delivery network of 3D ICs
• Temperature-aware timing analysis and optimization for 3D ICs

May 2015 - Apr 2016

R&D Intern

Research Group, ARM Inc., Austin, TX

Analysis and design solutions for M3D (monolithic 3D) ICs on ARM cores

• Analysis on power benefits of M3D ICs on ARM cores
• Physical design solutions to improve power-supply integrity of M3D ICs
• Physical design flow development for M3D ICs

Jan 2010 - Aug 2013

Associate Research Engineer

SoC Design Lab., AP Team, MtekVision, Seongnam, South Korea

Application processor (AP) logic design

• High speed serial interface development between AP and modem
• Long MP3 playtime audio system development using Tensilica DSP
• Hardware and software solutions for voice recognition

Aug 2017 - Dec 2009

Graduate Research Assistant

Design Automation Laboratory, Seoul National University, Seoul, South Korea
Advisor: Dr. Kiyoung Choi

Hardware and software architecture of coarse-grained reconfigurable architecture (CGRA)

• Software solutions for control-intensive kernels in CGRA
• Design solutions for floating-point operations in CGRA
• Architectural solutions for high-bandwidth memory system for CGRA
• Compiler development for CGRA

Journals

• Kyungwook Chang, Saurabh Sinha, Brian Cline, Greg Yeric, and Sung Kyu Lim, "Design-aware Partitioning-based 3D IC Design Flow with 2D Commercial Tools," IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems (Accepted)
• Heechun Park, Bon Woong Ku, Kyungwook Chang, Da Eun Shim, and Sung Kyu Lim, "Pseudo-3D Physical Design Flow for Monolithic 3D ICs: Comparisons and Enhancements," ACM Transactions on Design Automation of Electronic Systems (Accepted)
• Lingjun Zhu, Lennart Bamberg, Sai Pentapati, Kyungwook Chang, Francky Catthoor, Dragomir Milojevic, Manu Komalan, Brian Cline, Saurabh Sinha, Xiaoqing Xu, Alberto Garcia-Ortiz, and Sung Kyu Lim, "High-Performance Logic-on-Memory Monolithic 3D IC Designs for Arm Cortex-A Processors," IEEE Transactions on Very Large Scale Integration Systems (Accepted)
• Bon Woong Ku, Kyungwook Chang, and Sung Kyu Lim, "Compact-2D: A Physical Design Methodology to Build Two-Tier Gate-Level 3D ICs," IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, 2019 link
• Kyungwook Chang, Shidhartha Das, Saurabh Sinha, Brian Cline, Greg Yeric, and Sung Kyu Lim, "System-Level Power Delivery Network Analysis and Optimization for Monolithic 3-D ICs," IEEE Transactions on Very Large Scale Integration Systems, Vol.27, pp.888-898, 2019 link
• Kyungwook Chang, Deepak Kadetotad, Yu Cao, Jae-sun Seo, and Sung Kyu Lim, "Power, Performance, and Area Benefit of Monolithic 3D ICs for On-Chip Deep Neural Networks Targeting Speech Recognition," ACM Journals on Emerging Technologies in Conputing Systems, Vol.14, No.4, pp.4:1-42:19, 2018 link
• Kyungwook Chang, Kartik Acharya, Saurabh Sinha, Brian Cline, Greg Yeric, and Sung Kyu Lim, "Impact and Design Guideline of Monolithic 3-D IC at the 7-nm Technology Node," IEEE Transactions on Very Large Scale Integration Systems, Vol.25, No.7, pp.2118-2129, 2017 link

Conferences

• Sai Pentapati, Kyungwook Chang, Vassilios Gerousis, Rwik Sengupta, and Sung Kyu Lim, "Pin-3D: A Physical Synthesis and Post-Layout Optimization Flow for Heterogeneous Monolithic 3D ICs," IEEE International Conference on Computer-Aided Design, 2020 link
• Anthony Agnesina, Kyungwook Chang, and Sung Kyu Lim, "VLSI Placement Parameter Optimization using Deep Reinforcement Learning," IEEE International Conference on Computer-Aided Design, 2020 link
• Lingjun Zhu, Kyungwook Chang, Dusan Petranovic, Saurabh Sinha, Yun Seop Yu, and Sung Kyu Lim, "Full-Chip Electro-Thermal Coupling Extraction and Analysis for Face-to-Face Bonded 3D ICs," ACM International Symposium on Physical Design, 2020 link
• Heechun Park, Bon Woong Ku, Kyungwook Chang, Da Eun Shim, and Sung Kyu Lim, "Pseudo-3D Approaches for Commercial-Grade RTL-to-GDS Tool Flow Targeting Monolithic 3D ICs," ACM International Symposium on Physical Design, 2020 link
• Heechun Park, Kyungwook Chang, Bon Woong Ku, Jinwoo Kim, Edward Lee, Daehyun Kim, Arjun Chaudhuri, Sanmitra Banerjee, Saibal Mukhopadhyay, Krishnendu Chakrabarty, and Sung Kyu Lim, "RTL-to-GDS Tool Flow and Design-for-Test Solutions for Monolithic 3D ICs," ACM Design Automation Conference, 2019 link
• Bon Woong Ku, Kyungwook Chang, Sung Kyu Lim, "Compact-2D: A Physical Design Methodology to Build Commercial-Quality Face-to-Face-Bonded 3D ICs," ACM International Symposium on Physical Design, 2018 link
• Kyungwook Chang, Sai Pentapati, Da Eun Shim, Sung Kyu Lim, "Road to High-Performance 3D ICs: Performance Optimization Methodologies for Monolithic 3D ICs," IEEE International Conference On Computer Aided Design, 2018 link
• Kyungwook Chang, Shidhartha Das, Saurabh Sinha, Brian Cline, Greg Yeric, and Sung Kyu Lim, "Frequency and Time Domain Analysis of Power Delivery Network for Monolithic 3D ICs," ACM/IEEE International Symposium on Low Power Electronics and Design, 2017 link
• Kyungwook Chang, Deepak Kadetotad, Yu Cao, Jae-sun Seo, and Sung Kyu Lim, "Monolithic 3D IC Designs for Low-Power Deep Neural Networks Targeting Speech Recognition," ACM/IEEE International Symposium on Low Power Electronics and Design, 2017 link
• Kyungwook Chang, Bon Woong Ku, Saurabh Sinha, Sung Kyu Lim, "Full-chip monolithic 3D IC design and power performance analysis with ASAP7 library: (Invited Paper)," ACM/IEEE International Symposium on Low Power Electronics and Design, 2017 link
• Kyungwook Chang, Abhisheck Koneru, Krishnendu Chakrabarty, Sung Kyu Lim, "Design automation and testing of monolithic 3D ICs: Opportunities, challenges, and solutions: (Invited paper)," ACM/IEEE International Symposium on Low Power Electronics and Design, 2017 link
• Kartik Acharya, Kyungwook Chang, Bon Woong Ku, Shreepad Panth, Saurabh Sinha, Brian Cline, Greg Yeric, and Sung Kyu Lim, "Monolithic 3D IC Design: Power, Performance, and Area Impact at 7nm," IEEE International Symposium on Quality Electronic Design, 2016 link
• Kyungwook Chang, Saurabh Sinha, Brian Cline, Raney Southerland, Michael Doherty, Greg Yeric, and Sung Kyu Lim, "Cascade2D: A design-aware partitioning approach to monolithic 3D IC with 2D commercial tools," IEEE International Conference On Computer Aided Design, 2016 link
• Kyungwook Chang, Saurabh Sinha, Brian Cline, Greg Yeric, and Sung Kyu Lim, "Match-making for Monolithic 3D IC: Finding the Right Technology Node," ACM Design Automation Conference, 2016 link
• Kyungwook Chang, Kartik Acharya, Saurabh Sinha, Brian Cline, Greg Yeric and Sung Kyu Lim, "Power Benefit Study of Monolithic 3D IC at the 7nm Technology Node," IEEE International Symposium on Low Power Electronics and Design, 2015 link
• Ganghee Lee, Kyungwook Chang and Kiyoung Choi, "Automatic Mapping of Control Intensive Kernels onto Coarse-Grained Reconfigurable Array Architecture with Speculative Execution," Reconfigurable Architectures Workshop, 2010 link
• Kyungwook Chang and Kiyoung Choi, "Memory-Centric Communication Architecture for Reconfigurable Computing," International Symposium on Applied Reconfigurable Computing, 2010 link
• Manhwee Jo, Ganghee Lee, Kyungwook Chang, Kyuseung Han, Kiyoung Choi, Hoonmo Yang and Kiwook Yoon, "Coarse-Grained Reconfigurable Architecture for Multiple Application Domains: a Case Study," International Conference on Convergence and Hybrid Information Technology, 2009 link
• Kyungwook Chang and Kiyoung Choi, "Mapping Control Intensive Kernels onto Coarse-Grained Reconfigurable Array Architecture," International SoC Design Conference, 2008 link

Patents

• Saurabh Sinha, Kyungwook Chang, Brian Cline, Raney Southerland, "Method and apparatus for generating three-dimensional integrated circuit design," US20200257841A1
• Saurabh Sinha, Robert Aitken, Brian Cline, Greg Yeric, Kyungwook Chang, "Using inter-tier vias in integrated circuits," US9929149B2
• Saurabh Sinha, Kyungwook Chang, Brian Cline, Raney Southerland, "Method for generating three-dimensional integrated circuit design," US10678985B2
• Kiyoung Choi, Kyungwook Chang, Jongkyung Paek, "Memory centric communication apparatus in coarse grained reconfigurable array," US8949550B2

2003

The President's Award for 21 st Century's Most Leading Talented People

Grantor: The President of the Republic of Korea

2002

Korea Olympiad in Informatics (Algorithm), Bronze Medal

Grantor: Ministry of Science, ICT and Future Planning

1996

Korea Olympiad in Informatics (Algorithm), Bronze Medal

Grantor: Ministry of Science, ICT and Future Planning