Integrated circuit having fuse circuit

Details Integrated circuit having fuse circuit Integrated circuit having fuse circuit

1985-02-21

1988-03-08

Miller, Stanley D.

Electrical transmission or interconnection systems

Personnel safety or limit control features

Interlock

3072021, 307363, 307231, 307303, H03K 520, H03K 1940

Patent

active

047301295

ABSTRACT:
This invention is related to an integrated circuit (IC) having a fuse circuit. In such an IC device, it is very difficult to hold a specific gain of the IC because of a leakage of a gap between the fuse terminals called "re-glown fuse" or "glown-back fuse", and the IC suffers from malfunction. The present invention provides a fuse circuit to detect whether a fuse has been blown or not, by judging whether the fuse resistance is larger or smaller compared to a predetermined threshold resistor, which generates a judging potential corresponding to a fuse condition. Thus the IC can be used without malfunction.

REFERENCES:
patent: 4104546 (1978-08-01), Seiler
patent: 4446534 (1984-05-01), Smith
patent: 4532607 (1985-07-01), Uchida

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