Patent ID: 6649984
Filing Date: 2003-11-18
Classification: G11C,H01L

Abstract:
A semiconductor integrated circuit device, comprising:a logic circuit including a logic transistor formed of an insulated gate type field effect transistor as a component thereof and executing a prescribed processing; and memory circuitry for storing at least data to be used by said logic circuit said memory circuit including a first circuit configured for receiving a first voltage for operation and a second circuit configured for receiving a second voltage for operation, the second voltage being higher than the first voltage, said first circuit including as a component thereof a first-type insulated gate field effect transistor having a single gate insulating film same at least in thickness as said logic transistor, said second circuit including as a component thereof a second-type insulated gate field effect transistor having a single gate insulating film thicker than a gate insulation film of said logic transistor.