Circuit for detection of the state of an integrated circuit fuse

Details Circuit for detection of the state of an integrated circuit fuse Circuit for detection of the state of an integrated circuit fuse

1991-04-10

1994-03-01

Strecker, Gerard R.

Electricity: measuring and testing

Fault detecting in electric circuits and of electric components

Of individual circuit component or element

307362, 324158R, 324679, 324705, 340638, G01R 3102, G01R 1700, G01R 3128, H01H 8530

Patent

active

052911390

ABSTRACT:
A circuit for the detection of a fuse with oxide vertical fusing has another fuse that is of the same type but cannot be blown and, in parallel with each of the fuses, a voltage reference circuit. The output of each of the voltage reference circuits is an input of a differential comparator. This differential comparator is preferably provided with a voltage reference circuit that is independent of the supply voltage Vcc.

REFERENCES:
patent: 4104546 (1978-08-01), Seiler
patent: 4625162 (1986-11-01), Bosnyak
patent: 4701780 (1987-10-01), Hankins et al.
patent: 4730129 (1988-03-01), Kunitoki et al.
patent: 4835423 (1989-05-01), de Ferron et al.
patent: 4860258 (1989-08-01), Fruhauf et al.
patent: 4890187 (1989-12-01), Tailliet et al.
patent: 4924212 (1990-05-01), Fruhauf et al.
patent: 4932053 (1990-06-01), Fruhauf et al.

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