How secure circuit with an electric fuse circuit and the secret key programs

The security circuit is disclosed that a program for the electric fuse ROM according to an integrated security keys at the design stage of the circuit. The security circuit includes an electrical fuses and electrical fuses Rom Rom compiler. Electrical fuse ROM compiler during the design phase of an integrated circuit containing the electric fuse ROM, in response to the secret key selection of bit cells in the electric fuse ROM inside corresponding to the bit of each of the security key, and arranging the selected bit cell. Thus, the semiconductor device including a security circuit can reduce test time and test costs may increase the production yield.