Zero static power fuse for integrated circuits

Details Zero static power fuse for integrated circuits Zero static power fuse for integrated circuits

2005-02-01

2005-02-01

Elms, Richard (Department: 2824)

Static information storage and retrieval

Read/write circuit

Having fuse element

C365S189050, C365S189090

Reexamination Certificate

active

06850451

ABSTRACT:
A fuse cell with reduced or no static power dissipation is disclosed. The fuse cell utilizes a latch to store the state of the fuse. The use of the latch avoids having a pull-up power source being coupled to ground when the fuse is uncut as with conventional fuse cells. The fuse cell employs a control circuit connected to the latch and the fuse cell. When the control circuit receives an initialization signal, it sets the latch into a first state. When the initialization signal is removed, the control circuit couples the latch to the fuse circuit. In one of the latch's two states, the voltage the latch applies across the fuse is low (or zero). Conversely, if the latch takes the other state upon being coupled to the fuse, then the control circuit detects the state of the latch and in this case decouples the fuse from the latch circuit.

REFERENCES:
patent: 4532607 (1985-07-01), Uchida
patent: 4922134 (1990-05-01), Hoffmann et al.
patent: 5047664 (1991-09-01), Moyal
patent: 5315177 (1994-05-01), Zagar et al.
patent: 5731734 (1998-03-01), Pathak et al.
patent: 6603344 (2003-08-01), Yung
patent: 20030011953 (2003-01-01), Yung
patent: 20030185081 (2003-10-01), Ma
patent: 20030189457 (2003-10-01), Ma
patent: 0 528 744 (1993-02-01), None
patent: 0 528 744 (1993-02-01), None
patent: 0 947 993 (1999-10-01), None
patent: 0 947 993 (2000-06-01), None
patent: 58105497 (1983-06-01), None
patent: 2000021191 (2000-01-01), None
Kokkonen et al., “Redundancy Techniques for Fast Static RAMs”, 1981 IEEE International Solid-State Circuits Conference, Feb. 18, 1981, p. 80-81.
“DC CMOS Fuse True/Complement Generator”. IBM Technical Disclosure Bulletin; vol. 30; No: 12; May 1988, p. 61.

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