Zero Layer IC電子結構是一層一層加 對準堆疊完成 START OX Zero Layer ETCH Zero Layer PHOTO PR Remove 14
2. Po-Ying Chen*, “Degradation of Gate Oxide Integrity by Formation of Tiny Holes by Metal Contamination during Wafering Process”, Jpn. Journal of Applied Physics, p. 8685 -8690, SCI, N/M=50/94, IF: 2. 85. , IF: 2. 47, (2008) citation: 3 18
6. 材料厚度與均勻度 -- The gate dielectric layer roughness will reduce the electronic mobility. 2. 5 V for 0. 25 um DR 1. 0 V for 0. 09 um DR e e Rough Si substrate 20
-- The flatness will result-in the patterning lose problem. 7. 晶片平坦度 21
7. 晶片平坦度 -- CMP process will induce nano-topography issue, and this problem will affect the device performance. Oxide Silicon Nanotopography Length 5 mm for example "Stiff" ("Hard") Pad CMP Process Planarization Length ~ 7 - 10 mm CMP • Preferentially thins surface films in raised nanotopography areas. 22
7. 晶片平坦度 Impact on Nano-topography Improved Polishing pad optimized THA 2: 2 x 2 mm 17. 7 nm 9. 3 nm THA 4: 10 x 10 mm 32. 7 nm 21. 9 nm 23