Patent ID: 7057302

Claim:
Static random access memory having a first complementary field-effect transistor, a first transfer gate, a second complementary field-effect transistor, and a second transfer gate, wherein the first complementary field-effect transistor has a first field-effect transistor of electron conduction type and a first field-effect transistor of positive hole conduction type; the second complementary field-effect transistor has a second field-effect transistor of electron conduction type and a second field-effect transistor of positive hole conduction type; the first field-effect transistor of electron conduction type has a first drain region constituting a Schottky junction with a semiconductor substrate and a gate electrode formed on the semiconductor substrate; the first field-effect transistor of positive hole conduction type shares the first drain region in conjunction with the first field-effect transistor of electron conduction type and has a gate electrode which is shared by the first field-effect transistor of electron conduction type and provided on the semiconductor substrate; the first transfer gate is formed from a field-effect transistor which shares the first drain region with the first complementary field-effect transistor; the second field-effect transistor of electron conduction type has a second drain region constituting a Schottky junction with the semiconductor substrate and a gate electrode formed on the semiconductor substrate; the second field-effect transistor of positive hole conduction type shares the second drain region in conjunction with the second field-effect transistor of electron conduction type and has a gate electrode which is shared by the second field-effect transistor of electron conduction type and provided on the semiconductor substrate; the second transfer gate is formed from a field-effect transistor which shares the second drain region with the second complementary field-effect transistor; the common gate electrode of the first complementary field-effect transistor is connected to the second drain region; and the common gate electrode of the second complementary field-effect transistor is connected to the first drain region.