TC

Tzu-Ching Chen

UM United Microelectronics: 2 patents #1,942 of 4,560Top 45%
Overall (All Time): #2,155,477 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7190823 Overlay vernier pattern for measuring multi-layer overlay alignment accuracy and method for measuring the same — 2007-03-13
7190824 Overlay vernier pattern for measuring multi-layer overlay alignment accuracy and method for measuring the same — 2007-03-13