Fuse box reducing damage caused by laser blowing and cross talk

Details Fuse box reducing damage caused by laser blowing and cross talk Fuse box reducing damage caused by laser blowing and cross talk

2006-12-13

2009-10-20

Hu, Shouxiang (Department: 2811)

Active solid-state devices (e.g., transistors, solid-state diode

Integrated circuit structure with electrically isolated...

Passive components in ics

C257SE23150

Reexamination Certificate

active

07605444

ABSTRACT:
Provided are a fuse box that simultaneously prevents damage caused by laser blowing and cross talk between the fuses and a method of manufacturing the same. In a fuse box having an open region in which fuses are opened by laser blowing and a bundle region in which fuse opens do not occur, a capping layer, adjacent to the open region, having a metal layer and an insulation layer covers the outermost fuses in the bundle region, thereby reducing the influence of laser blowing of fuses in the bundle region, and preventing capacitive coupling caused by the formation of a parasitic capacitor between fuse lines and an insulation layer therebetween. Accordingly, cross talk due to the capacitive coupling can be prevented, thereby enhancing the reliability of a fuse circuit. Lower fuses can be disposed in a lower layer in the bundle region, thereby forming a two-layered fuse box.

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