CIRCUIT HAVING MAKE LINK FUSE AND SEMICONDUCTOR DEVICE USING THE SAME

摘要

PURPOSE: A circuit having a make link fuse and a semiconductor device using the same are provided to improve the reliability of an operation by cutting off the current flow through a make link fuse. CONSTITUTION: A node(n5) is in a state of high level and a PMOS transistor(P3) is turned off when a make link fuse(F3) is disconnected and a make link fuse(F4) is connected. At this time, a gate of the PMOS transistor(P3) is in the state of high level. The node(n5) is in the state of low level and the PMOS transistor(P3) is turned on when the make link fuse(F3) is connected and the make link fuse(F4) is disconnected. At this time, the gate of the PMOS transistor(P3) is in the state of low level. A floating phenomenon of the gate is prevented since the gate of the PMOS transistor(P3) is fixed to low level or the high level.