Semiconductor integrated circuit device including OTP memory, and method of programming OTP memory

摘要

A semiconductor integrated circuit device includes a storage element, state sensing circuit, and control circuit. Information is programmed in the storage element by electrically irreversibly changing the element characteristics. The state sensing circuit is configured to sense the irreversibly changed state of the storage element in distinction from an unchanged state. The control circuit is configured to change the sensibility of the state sensing circuit.