Publications

International Journal

12. Minji Jeong, Geonho Kim, and Daijoon Hyun, "Efficient timing library characterization of standard cells using index removal algorithm," Journal of Semiconductor Technology and Science, submitted.

11. Seunggyu Lee, Shilong Zhang, Daijoon Hyun, and Youngsoo Shin, "Accurate timing modeling of custom library cells with strong non-monotonic behaviors," IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, in revision.

10. Jaeseung Lee, Sungyun Lee, Jinho Cho, Daijoon Hyun, and Seokhyeong Kang, "CTRL-B: back-end-of-line configuration optimization using cross-domain transferable reinforcement learning," IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, accepted.

9. Daijoon Hyun, Younggwang Jung, and Youngsoo Shin, "Decap insertion with cell relocation minimizing IR-drop violations and routing DRVs," IEEE Transactions on Very Large Scale Integration Systems, vol. 32, No. 5, pp. 823-834, May 2024. 📝paper

8. Daijoon Hyun, Younggwang Jung, and Youngsoo Shin, "Accurate interpolation of library timing parameters through recurrent convolutional neural network," IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, vol. 43, no. 1, pp. 244-248, Jan. 2024. 📝paper

7. Daijoon Hyun, Wonjae Lee, Jinhyeong Park, and Youngsoo Shin, "Integrated power distribution network synthesis for mixed macro blocks and standard cells," IEEE Transactions on Circuit and Systems II: Express Briefs, vol. 70, no. 6, pp. 2211-2215, Jun. 2023. 📝paper

6. Daijoon Hyun, Sunwha Koh, Younggwang Jung, Taeyoung Kim, and Youngsoo Shin, "Routability optimization of extreme aspect ratio design through non-uniform placement utilization and selective flip-flop stacking," ACM Transactions on Design Automation of Electronic Systems, vol. 28, no. 50, pp. 1-19, May 2023. 📝paper

5. Daijoon Hyun, Younggwang Jung, and Youngsoo Shin, "Airgap insertion and layer reassignment under setup and hold timing constraints," IEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems, vol. 42, no. 3, pp. 987-999, Mar. 2023.  📝paper

4. Manikanta Prahlad Manda and Daijoon Hyun, "Double thresholding with sine entropy for thermal image segmentation," Traitement du Signal, vol. 38, no. 6, pp. 1713-1718, Dec. 2021. 📝paper

3. Daijoon Hyun, Younggwang Jung, and Youngsoo Shin, "Selective use of stitch-induced via for V0 mask reduction: standard cell design and placement optimization," IEICE Transactions on Fundamentals of Electonics, Communications and Computer Sciences, vol. E102.A, no. 12, pp. 1711-1719, Dec. 2019.     📝paper   

2. Youngsoo Song, Daijoon Hyun, Jingon Lee, Jinwook Jung, and Youngsoo Shin, "Cut optimization for redundant via insertion in self-aligned double patterning," ACM Transactions on Design Automation of Electronic Systems, vol. 24, no. 6, pp. 61:1-61:21, Sep. 2019.  📝paper 

1. Daijoon Hyun and Youngsoo Shin, "Integrated approach of airgap insertion for circuit timing optimization," ACM Transactions on Design Automation of Electronic Systems, vol. 24, no. 2, pp. 24:1-24:22, Feb. 2019.  📝paper 

International Conference

23. Younggwang Jung, Chanjin Kim, and Daijoon Hyun, "Library index optimization through diffusion model for accurate timing interpolation," Proc. Int'l Symp. on Circuits and Systems (ISCAS), accepted.

22. Yebin Kim, Jinil An, and Daijoon Hyun, "Circuit similarity based initial parameter sampling for tool parameter exploration," Proc. Int'l Symp. on Circuits and Systems (ISCAS), accepted.

21. Manikanta Prahlad Manda, Seunggyu Lee, and Daijoon Hyun, "Fast timing library characterization through selective use of regression models," Proc. Asia South Pacific Design Automation Conf. (ASPDAC), accepted.

20. Younggwang Jung and Daijoon Hyun, "Leakage optimization using mixed-Vth cells: Vth swapping and cell relocation," Proc. Int'l Symp. on Circuits and Systems (ISCAS), pp 1-4, May 2025. 📝paper

19. Seunggyu Lee, Daijoon Hyun, Younggwang Jung, Gangmin Cho, Youngsoo Shin, "Fast IR-drop prediction of analog circuits using recurrent synchronized GCN and Y-Net model," Proc Design, Automation, and Test in Europe (DATE), pp. 1-6, Mar. 2024. 📝paper

18. Jiwoo Nam and Daijoon Hyun, "Bayesian optimization for parameter tuning in placement-aware logic synthesis," Proc International SoC Design Conference (ISOCC), pp. 353-354 Oct. 2023. 📝paper

17. Younggwang Jung, Daijoon Hyun, Soyoun Choi, and Youngsoo Shin, "Power distribution network optimization using HLA-GCN for routability enhancement," Proc Int'l Conference on Computer-Aided Design (ICCAD), pp. 1-8, Oct. 2023. 📝paper

16. Jiwoo Nam and Daijoon Hyun, "Interconnect stack parameter optimization using genetic algorithm," Proc. Int'l Symp. on Circuits and Systems (ISCAS), pp 1-4, May 2023. 📝paper

15. Daijoon Hyun, Younggwang Jung, Insu Cho, and Youngsoo Shin, "Decoupling capacitor insertion minimizing IR-drop violations and routing DRVs," Proc. Asia South Pacific Design Automation Conf. (ASPDAC), pp. 271-276, Jan. 2023.     📝paper

14. Sunhwa Goh, Younggwang Jung, Daijoon Hyun, Youngsoo Shin, "Routability optimization for extreme aspect ratio design using convolutional neural network," Proc. Int'l Symp. on Circuits and Systems (ISCAS), pp. 1-4, May 2021.     📝paper

13. Yonghwi Kwon, Daijoon Hyun, Kiyoon Jung, and Youngsoo Shin, "Dynamic IR drop prediction using image-to-image translation neural network," Proc. Int'l Symp. on Circuits and Systems (ISCAS), pp. 1-5, May 2021.     📝paper

12. Younggwang Jung, Daijoon Hyun, and Youngsoo Shin, "Integrated airgap insertion and layer reassignment for circuit timing optimization," Proc. Asia South Pacific Design Automation Conf. (ASPDAC), pp. 32-37, Jan. 2020. (Nominated for Best Paper Award)     📝paper

11. Daijoon Hyun, Yuepeng Fan, and Youngsoo Shin, "Accurate wirelength prediction for placement-aware synthesis through machine learning," Proc. Design, Automation & Test in Europe (DATE), pp. 324-327, Mar. 2019.     📝paper

10. Kiwon Yoon, Daijoon Hyun, and Youngsoo Shin, "Fast timing analysis of non-tree clock network with shorted wires," Proc. Great Lakes Symp. on VLSI (GLSVLSI), pp. 279-284, May 2018.     📝paper

9. Daijoon Hyun, Jaewoo Seo, and Youngsoo Shin, "Library optimization for near threshold voltage design," Proc. Int'l Symp. on Circuits and Systems (ISCAS), pp. 1-4, May 2018.     📝paper

8. Youngsoo Song, Jinwook Jung, Daijoon Hyun, and Youngsoo Shin, "Timing optimization in SADP process through wire widening and double via insertion," Proc. SPIE Advanced Lithography, pp. 105880R-1-105880R-8, Feb. 2018.     📝paper

7. Daijoon Hyun and Youngsoo Shin, "Automatic insertion of airgap with design rule constraints," Proc. Asia South Pacific Design Automation Conf. (ASPDAC), pp. 381-386, Jan. 2018.     📝paper

6. Daijoon Hyun, Wachirawit Ponghiran, and Youngsoo Shin, "Clock tree optimization through selective airgap insertion," Proc. Int'l Symp. on Quality Electronic Design (ISQED), pp. 203-208, Mar. 2017.     📝paper

5. Daijoon Hyun and Youngsoo Shin, "Selection of airgap layers for circuit timing optimization," Proc. SPIE Advanced Lithography, pp. 101480O-1-101480O-8, Feb. 2017.     📝paper

4. Daijoon Hyun and Youngsoo Shin, "Modeling interconnect corners under double patterning misalignment," Proc. SPIE Advanced Lithography, pp. 97810F-1-97810F-7, Feb. 2016.     📝paper

3. Inhak Han, Daijoon Hyun, and Youngsoo Shin, "Buffer insertion to remove hold violations at multiple process corners," Proc. Asia South Pacific Design Automation Conf. (ASPDAC), pp. 232-237, Jan. 2016.     📝paper

2. Daijoon Hyun and Youngsoo Shin, "Calibration of interconnect corners using on-chip ring oscillators," Proc. Int'l SoC Design Conf. (ISOCC), pp. 39-40, Nov. 2015. (Best Paper Award)     📝paper

1. Jinwook Jung, Daijoon Hyun, and Youngsoo Shin, "Physical synthesis of DNA circuits with spatially localized gates," Proc. Int'l Conf. on Computer Design (ICCD), pp. 280-286, Oct. 2015.     📝paper

Domestic Journal

None

Domestic Conference

16. 석준규, 현대준, "Multibit Flip-Flop 적용 방식에 따른 설계 PPA 분석," Korean Conference of Semiconductors (KCS), accepted.

15. 고혁, 현대준, "ILP-based pad assignment for signal and power integrity," Korean Conference of Semiconductors (KCS), accepted.

14. 김건호, 정민지, 현대준, "다양한 테이블 크기를 활용한 빠른 타이밍 라이브러리 생성 방법," 반도체공학회 하계학술대회, Jul. 2025. (학부생 우수논문상)  📑ppt

13. 김찬진, 정영광, 현대준, "Bayesian optimization 기반 timing table index 최적화," Korean Conference of Semiconductors (KCS), Feb. 2025.

12. 이준빈, 안진일, 현대준, "회로 유사도 기반 논리 합성 툴 파라미터 최적화," Korean Conference of Semiconductors (KCS), Feb. 2025. (분과별 우수논문상)

11. 송정식, 오제영, 현대준, "타이밍 제약조건을 고려한 전력분배망 최적화", Korean Conference of Semiconductors (KCS), Jan. 2024. 📑ppt

10. 안진일, 김경창, 현대준, "Mixed vth 셀을 활용한 누설전력 최적화 알고리즘", Korean Conference of Semiconductors (KCS), Jan. 2024. 📑pdf

9. 김경창, 정민지, 김학윤, 현대준, "회로 면적 최소화를 위한 렉틸리니어 셀 재설계와 셀 재배치 알고리즘," 한국정보기술학회, Jun. 2023. (우수논문상) 📑poster

8. 남지우, 송정식, 정형근, 김학윤, 현대준, "유전 알고리즘을 활용한 논리 합성 도구 매개변수 최적화," 한국정보기술학회, Jun. 2023. 📑poster

7. 이유진, 오제영, 김학윤, 현대준, "비아 필라를 사용한 전력 분배망 최적화," 한국정보기술학회, Jun. 2023. 📑poster

6. 송정식, 오제영, 현대준, "전력분배망 최적화를 위한 고속 전압 강하 분석," Korean Conference of Semiconductors (KCS), Feb. 2023. (Samsung Award) 📑ppt

5. 이유진, 김경창, 현대준, "회로 면적 감소를 위한 스탠다드 셀의 렉틸리니어 형태 재설계," Korean Conference of Semiconductors (KCS), Feb. 2023. 📑poster

4. 정민지, Manikanta Prahlad Manda, 현대준, "다양한 테이블 크기로 구성된 스탠다드 셀 타이밍 라이브러리," Korean Conference of Semiconductors (KCS), Feb. 2023. 📑poster

3. 오제영, 현대준, "컨택 라우팅 활용을 위한 셀 배치 최적화 방법," Korean Conference of Semiconductors (KCS), Jan. 2022. 📑ppt

2. 김경창, 현대준, "비대칭 게이트 설계를 위한 트랜지스터 최적화 알고리즘," Korean Conference of Semiconductors (KCS), Jan. 2022. 📑ppt

1. 남지우, 현대준, "베이지안 최적화를 이용한 메탈 스택 파라미터 선정 방법," Korean Conference of Semiconductors (KCS), Jan. 2022. 📑ppt

Patent

8. Yebin Kim and Daijoon Hyun, "Circuit similarity based initial parameter sampling for tool parameter exploration," Korea patent 10-2025-0211658, Dec. 2025.  📝application

7. Younggwang Jung and Daijoon Hyun, "Diffusion model learning method and device for optimizing index of parameter table, method for optimizing index of parameter table," Korea patent 10-2025-0013492, Feb. 2025.  📝application

6. Younggwang Jung, Daijoon Hyun, Youngsoo Shin and Soyoon Choi, "Power distribution network optimization method and apparatus, incremental IR-drop analysis method using deep learning," Korea patent 10-2024-0150949, Aug. 2024. 📝application

5. Younggwang Jung and Daijoon Hyun, "Parameter prediction method and apparatus using deep learning," Korea patent 10-2024-0124630, Aug. 2024.  📝application

4. Seunggyu Lee, Younggwang Jung, Daijoon Hyun, and Youngsoo Shin, "Method for predicting voltage drop in analog circuit and apparatus thereof," Korea patent 10-2024-0142951, Oct. 2024. 📝registration

3. Daijoon Hyun, "Apparatus and method for generation of standard cell library with various table sizes," Korea patent 10-2023-0019799, Feb. 2023. 📝application  

2. Hyosig Won, Daijoon Hyun, and Kwangok Jeong, "Semiconductor device for testing large number of devices and composing method and test method thereof," US patent 10026661B2, Jul. 2018. 📝registration

1. Hyoun Soo Park, Young Hwan Kim, Dai Joon Hyun, and Wook Kim, "Method of timing criticality calculation for statistical timing optimization of VLSI circuit," US patent 8046724B2, Oct. 2011. 📝registration   

SW

2. Go Hyuk and Daijoon Hyun, "ILP-based pad assignment for signal and power integrity," C-2025-058971, 2025.12.19. 📑registration

1. Yebin Kim and Daijoon Hyun, "툴 파라미터 탐색을 위한 회로 유사도 기반 초기 파라미터 샘플링 프로그램," C-2025-057916, 2025.12.16. 📑registration