- 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:
M.S. candidate 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 Inernational Symposium on High Performance Computer Architecture, 2026 (accepted)
- YM2151 - IKAOPM
- YM2413 - IKAOPLL (ttsky25b tapeout)
- SCC - IKASCC
- TMS32010 - IKA32010
- ... and many ASICs
- Sega - Super Locomotive
- Jaleco - Psychic 5
- Konami - Salamander
- Konami - Bubble System and its ROM variant

