Edit structure that allows the input of a logic gate to be changed by modifying any one of the metal or via masks used to form the metal interconnect structure

摘要

An edit structure is disclosed that allows the input of a logic gate to be changed by modifying any one of the metal and via masks that are used to form the metal interconnect structure. As a result, a first permanent logic state provided by a tie-in circuit can be changed to a second permanent logic state by modifying any one of the metal and via masks that are used to form the metal interconnect structure.