Array protection devices and fabrication method

Fishing – trapping – and vermin destroying

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437922, H01L 2182

Patent

active

055232531

ABSTRACT:
The present disclosure sets forth an improved integrated circuit in which circuit elements, adjacent to a fuse, are protected by barriers positioned adjacent the fuse. In the improved integrated circuit the barriers are non-frangible, high melting point structures buried in the passivating layer, covering a wiring layer containing a fuse, and are between the fuse and adjacent circuit elements in the wiring layer structures.
Also taught is a method of protecting circuit elements adjacent a fuse comprising the steps of depositing an insulating layer on the surface of a semiconductor device having active regions therein, forming a plurality of fuses and circuit elements in said layer, coating said fuses and elements with a second insulating layer, patterning said second insulating layer to form grooves between each of said fuses and any adjacent fuse or circuit element, and depositing a high melting point and non-frangible material in said grooves.

REFERENCES:
patent: 4536949 (1985-08-01), Takayama et al.
patent: 4602420 (1986-07-01), Saito
patent: 4853758 (1989-08-01), Fischer
patent: 5285099 (1994-02-01), Carruthers et al.

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