A semiconductor device has a first and a second semiconductor layer provided on an insulating film on a support substrate. A first memory cell transistor, which constitutes a part of a memory cell in an SRAM, has a first gate electrode of a first conductivity type and first source/drain diffusion layers...http://www.google.de/patents/US7061054?utm_source=gb-gplus-sharePatent US7061054 - Semiconductor device and semiconductor device manufacturing method
