I am a Ph.D. student in the Department of Electrical and Computer Engineering at Sungkyunkwan University, supervised by Prof. Jong Hwan Ko.

My research focuses on hardware–software co-design for memory-centric AI systems, particularly processing-in-memory (PIM) architectures. I explore performance and reliability challenges in PIM-based systems for emerging AI workloads, and develop cross-layer solutions across architecture, runtime systems, and AI models.

My work has covered ReRAM-, SRAM-, and DRAM-based PIM systems, and has recently expanded toward HBM-PIM designs for efficient and reliable large language model (LLM) inference.

🔥 News

• 2026.05: 🎉 One paper was accepted to ISLPED 2026.
• 2026.02: 🎉 One paper was accepted to DAC 2026.

💻 Experience

• 2025.07 - 2026.07 Visiting Researcher, CEI Lab, Duke University (advisor: Prof. Yiran Chen).
• 2022.09 - 2023.02 Research Assistant, IRIS Lab, Sungkyunkwan University.
• 2019.12 - 2022.09 Engineer, Systems Team, Seoul Metro.
• 2015.07 - 2018.12 Engineer, DRAM Quality Assurance (QA) Group, Samsung Electronics.

📝 Publications

Selected Publications

[1] DAC 2026 Juhong Park, Yintao He, Sangheum Yeon, Yiran Chen, and Jong Hwan Ko; REFLEX: Rewrite-Free Row-Aligned Sparse Attention for Efficient LLM Execution on PIM. In ACM/IEEE Design Automation Conference (DAC), 2026.

[2] JSA 2025 Juhong Park, Johnny Rhe, Chanwook Hwang, Jaehyeon So, and Jong Hwan Ko; Input/Mapping Precision Controllable Digital CIM with Adaptive Adder Tree Architecture for Flexible DNN Inference. In Journal of Systems Architecture (JSA), 2025. (JCR Q1)

[3] ICCE-Asia 2024 Juhong Park and Jong Hwan Ko; Fully Approximate Computing for Efficient Multi-Bit DNN Inference in CIM Arrays. In IEEE International Conference on Consumer Electronics-Asia (ICCE-Asia), 2024.

[4] ISOCC 2024 Juhong Park and Jong Hwan Ko; C-afa: A Conditionally Approximate Full Adder for Efficient DNN Inference in CIM Arrays. In International SoC Design Conference (ISOCC), 2024.

[5] ISCAS 2024 Juhong Park, Johnny Rhe, and Jong Hwan Ko; KARS: Kernel-Grouping Aided Row-Skipping for SDK-based Weight Compression in PIM Arrays. In IEEE International Symposium on Circuits and Systems (ISCAS), 2024.

Collaborative Publications

[6] ISLPED 2026 Yeong Hwan Oh, Do Yeong Kang, Juhong Park, Chanwook Hwang, Kang Eun Jeon, and Jong Hwan Ko; HyperSPACE: Sparse-Adder-Compatible Encoding for Efficient Hyperdimensional Computing on Digital CIM Arrays. In IEEE/ACM International Symposium on Low Power Electronics and Design (ISLPED), 2026.

[7] APCCAS 2025 Johnny Rhe, Juhong Park, Kang Eun Jeon, and Jong Hwan Ko; ETA: Efficient Transformer Attention Mapping for ReRAM-based Compute-In-Memory Architectures. In Asia Pacific Conference on Circuits and Systems (APCCAS), 2025.

[8] AICAS 2024 Chanwook Hwang, Jaehyeon So, Johnny Rhe, Jiyoon Kim, Juhong Park, Kang Eun Jeon, and Jong Hwan Ko; An Efficient Ventricular Arrhythmias Detection on Microcontrollers with Optimized 1D CNN. In IEEE Artificial Intelligence Circuits and Systems (AICAS), 2024.

🏆 Honors and Awards

• 2025.09 2025 President’s List, Sungkyunkwan University.
• 2024.09 Best Paper Award, The 31st Korean Conference on Semiconductors (KCS).
• 2024.07 Grand Prize at the Exynos AI Challenger, Samsung Electronics’ S.LSI. (Team IRIS)
• 2023.07 Best Paper Award (Top Award), Korean Artificial Intelligence Association (KAIA).
• 2023-2025 Graduate Excellence Scholarship Recipient, Sungkyunkwan University.
• 2015.08 Dean’s List Award, Sungkyunkwan University.
• 2014.02 Qualcomm Scholarship Recipient, Qualcomm (Korea).

📖 Education

• 2023.03 - Present, Ph.D. in Electrical and Computer Engineering, Sungkyunkwan University.
• 2012.03 - 2015.08, B.S. in Electronic and Electrical Engineering, Sungkyunkwan University.