Patent ID: 7777298

Claim:
A semiconductor device comprising: a semiconductor substrate, and an antifuse provided on said semiconductor substrate, wherein said antifuse includes: a first link portion, a second link portion coupled to said first link portion, a first terminal and a second terminal respectively provided at an end and the other end of said first link portion, a third terminal and a fourth terminal respectively provided at an end and the other end of said second link portion, and a decision unit which is coupled to said first terminal, said second terminal, said third terminal, and said fourth terminal, wherein said decision unit is configured to decide whether both of said first link portion and said second link portion are connected and output a signal indicating that said antifuse is connected when both of said first link portion and said second link portion are decided to be connected, and to decide whether one of said first link portion and said second link portion are disconnected and output a signal indicating that said antifuse is disconnected when one of said first link portion and said second link portion is decided to be disconnected.