Reduced pitch laser redundancy fuse bank structure

Details Reduced pitch laser redundancy fuse bank structure Reduced pitch laser redundancy fuse bank structure

1995-12-22

1997-06-03

Nelms, David C.

Static information storage and retrieval

Read/write circuit

Having fuse element

257529, 257209, H01L 2702

Patent

active

056361726

ABSTRACT:
A configuration for a laser fuse bank is disclosed wherein the available space is more efficiently used. Fuses of graduated width and variable configuration are placed so as to minimize the average distance between fuses and maximize fuse density. Alternatively, a common source is added to a standard laser fuse structure such that it intersects the fuses and the number of available fuses is doubled.

REFERENCES:
patent: 4903111 (1990-02-01), Takemae et al.
patent: 4924287 (1990-05-01), Orbach
patent: 5200652 (1993-04-01), Lee
patent: 5264725 (1993-11-01), Mullarkey et al.
patent: 5274264 (1993-12-01), Yung
patent: 5281868 (1994-01-01), Morgan
patent: 5420456 (1995-05-01), Galbi et al.
patent: 5424672 (1995-06-01), Cowles et al.

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