• Squid girl
• Silicon reverse engineering (digital, partially A/D mixed)
• Developing Verilog IPs for classic chips
• Hardware emulation projects such as MiSTer FPGA
• Collecting and repairing vintage computers
• Collecting 78rpm records; restoration engineer at the Korea Record Archive

• Seoul National University of Science and Technology:
  B.S. in Electrical & Information Engineering (Mar. 2018 - Aug. 2024)
• Yonsei University:
  Ph.D. student in Electrical & Electronic Engineering (Mar. 2025 - current)

S. Kim, M. Kim, C. Park, H. Park, S. Kim, T. Song and W. Song, "NPUWattch: ML-based Power, Area, and Timing Modeling for Neural Accelerators," IEEE International Symposium on High-Performance Computer Architecture (HPCA), Jan. 2026, pp. 1-14. [Paper]

"NPU System Performance, Power, and Area Modeling with PyTorchSim and NPUWattch," Tool Demonstration, IEEE/ACM International Symposium on Microarchitecture (MICRO), Workshops & Tutorials, Oct. 2026. Scheduled.

• Cave - CV1000 (2004)
• Jaleco - Psychic 5 (1987)
• Konami - Salamander (1986)
• Konami - Bubble System and its ROM variant (1985)
• Sega - Super Locomotive (1982)
• Jaleco - City Connection
• Taito - Rainbow Islands

• SuperH-3 - HS3 (FPGA proven)
• TMS32010 - IKA32010 (FPGA proven)
• uPD87AD - IKA87AD (FPGA proven)

• ASICs

• YM2151 - IKAOPM (FPGA proven)
• YM2413 - IKAOPLL (ttsky25b tapeout)
• SCC - IKASCC (FPGA proven)

• V9958 - IKA9958 under construction