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Heuijee
Yun

PH.D. STUDENT · AI HARDWARE / SOC DESIGN

Profile

Ph.D. student designing low-power AI accelerators — from spiking neural network architectures and self-supervised learning down to tape-out. Four chip tape-outs (Samsung 28nm ×2, SK keyfoundry 130nm, MPW), 16+ peer-reviewed publications including IEEE TVLSI and DAC. Also builds custom PCBs, 3D-printed devices, and self-hosted AI systems for fun.

Education

2022 — PRESENT

Ph.D. Student, Electronics and Electrical Engineering

Kyungpook National University · AI-S²oC Lab · Advisor: Prof. Daejin Park

2018 — 2022

B.S. in Electronics Engineering

Kyungpook National University

Chip Tape-outs

2025 · 28NM

RISC-V Adaptive Clock Control + Sparsity-Aware Transformer Accelerator

Samsung 28nm — zero-skip datapaths, runtime clock gating via RISC-V controller, MMIO control

2024 · 28NM

HAB-1 — Reconfigurable Host-Accelerator Bridge

Samsung 28nm — multi-channel MPI interface, reconfigurable CNN accelerator

2023 · 130NM

ARMuP — Cortex-M0+ Compatible Core with Custom µSIMD

SK keyfoundry 130nm — custom ISA, µSIMD instructions, tile-SoC memory interface

2023 · MPW

SNN-based Compute-In-Memory

RRAM synaptic circuits, PSpice neuron modeling, neuromorphic architecture

Selected Publications (6 J / 10 C total)

TVLSI 2025S³A-NPU: A High-Performance Hardware Accelerator for Spiking Self-Supervised Learning with Dynamic Adaptive Memory OptimizationHeuijee Yun, Daejin Park — IEEE Trans. on VLSI Systems
DAC 2025Opti-SpiSSL: A Highly Reconfigurable Hardware Generation Framework for Spiking SSL on Heterogeneous SoCHeuijee Yun, Daejin Park — IEEE Design Automation Conference
ACCESS 2024Low-Power Lane Detection Unit with Sliding-based Parallel Segment Detection AcceleratorHeuijee Yun, Daejin Park — IEEE Access
PERCOM 2024Deep Learning based Human Detection using Thermal-RGB Data Fusion for Safe Automotive Guided-DrivingHeuijee Yun, Daejin Park — IEEE PerCom (PerVehicle)
SENSORS 2022Efficient Object Detection based on Masking Semantic Segmentation Region for Lightweight Embedded ProcessorsHeuijee Yun, Daejin Park — Sensors

→ full list at heuijee.github.io/publications

Skills

Verilog / RTLASIC flow (28nm–130nm)FPGARISC-VArm Cortex-MTVMPyTorchSNNTorch / SpikingJellyC / C++PythonOpenCVPCB designEmbedded Linux3D printing

Awards

2024

KNU-EE Funded Excellence Ph.D. Award

10,000,000 KRW scholarship