Method of anti-fuse repair

Details Method of anti-fuse repair Method of anti-fuse repair

1996-08-20

1998-04-21

Nguyen, Viet Q.

Static information storage and retrieval

Read/write circuit

Having fuse element

437 60, 437922, 437 52, 438131, 438467, 438600, 3652257, H01L 2170

Patent

active

057425558

ABSTRACT:
An integrated circuit anti-fuse is described which is fabricated as a capacitor using a layer of oxide. The two plates of the anti-fuse are coupled to appropriate voltage levels to rupture the oxide and form a conductive short between the plates. One of the plates is formed as a diffused well which is coupled to an external voltage during programming. The well is biased to an internal voltage during normal operation of the circuit incorporating the anti-fuse.

REFERENCES:
patent: 5057451 (1991-10-01), McCollumn
patent: 5200652 (1993-04-01), Lee
patent: 5257222 (1993-10-01), Lee
patent: 5257225 (1993-10-01), Lee
patent: 5276653 (1994-01-01), McKenny
patent: 5324681 (1994-06-01), Lowrey et al.
patent: 5331196 (1994-07-01), Lowrey et al.
patent: 5412593 (1995-05-01), Magel et al.
patent: 5506518 (1996-04-01), Chiang
patent: 5508220 (1996-04-01), Eltoukhy et al.
patent: 5552743 (1996-09-01), Manning

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