supported by the National Natural Science Foundation of China (Grant No. 61006088);the National Basic Research Program of China (973 Program) (Grant No. 2010CB832906);the Natural Sci-ence Foundation of Shanghai (Grant No. 10ZR1436100)
The etch characteristics of Si_1-xGex films in HNO3:H2O:HF were examined. The etch rate ratio (etch selectivity) between Si_1-xGex and Si escalated with the growth of HNO3 concentration at low concentration level, and...
the National High-Tech Research and Development Program of China ("863" Project) (Grant No. 2006AA843134);the National Basic Research Program of China ("973" Project) (Grant No. 2007CB935302)
The punching thru mechanism of gate oxide (thickness about 15A) was investi- gated. Because of the thin thickness of gate oxide, gate oxide punching thru may easily happen during the plasma process. It was found that ...