Fishing – trapping – and vermin destroying
Patent
1995-02-16
1996-06-04
Thomas, Tom
Fishing, trapping, and vermin destroying
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.
Gilmour Richard A.
Hartswick Thomas J.
Thomas David C.
Uttecht Ronald R.
Walton Erick G.
International Business Machines Corp.
Thomas Tom
Walter Howard J.
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