Patent ID: 7567114

Claim:
A semiconductor device including an electric fuse portion capable of providing different outputs used for storing 1-bit information, the semiconductor device comprising: two electric fuses provided in parallel in the electric fuse portion; a first driver operable to provide a first high potential to one of said two electric fuses; a second driver operable to provide a second high potential to another of said two electric fuses independently of said first driver; and a switch operable to disconnect said two electric fuses from an output of said electric fuse portion. wherein said two electric fuses are each capable of irreversibly changing from a first state to a second state when a voltage higher than a predetermined value is applied thereto, and wherein said electric fuse portion is configured to provide a first output when all of said two electric fuses are in the first state and a second output different from the first output when at least one of said two electric fuses is in the second state.