Patent ID: 7566936

Claim:
A complementary MIS device characterized by: a semiconductor substrate having a (110) principal surface; an n-channel MIS transistor comprising: a first gate electrode formed on said (110) principal surface of said semiconductor substrate via a first gate insulation film with a first crystal orientation; and first and second n-type diffusion regions formed in said semiconductor substrate at a first side and an opposite side of said first gate electrode; and a p-channel MIS transistor comprising: a second gate electrode formed commonly on said (110) principal surface of said semiconductor substrate via a second gate insulation film with a second crystal orientation; and first and second p-type diffusion regions formed in said semiconductor substrate at a first side and an opposite side of said second gate electrode, said first gate electrode and said second gate electrode being commonly connected, said second p-type diffusion region and said first n-type diffusion region being commonly connected, and said first crystal orientation and said second crystal orientation being set such that a current drivability of said p-channel MIS transistor balances a current drivability of said n-channel MIS transistor, wherein said n-channel MIS transistor and said p-channel MIS transistor have the same channel width.