Thin film transistor redundancy structure

Details Thin film transistor redundancy structure Thin film transistor redundancy structure

1996-06-17

1997-09-02

Nguyen, Viet Q.

Miscellaneous active electrical nonlinear devices, circuits, and

Specific identifiable device, circuit, or system

Thin film

327518, 327520, 327525, 327526, 327581, G11C 1716

Patent

active

056636792

ABSTRACT:
In a microcircuit device such as a memory chip, where a bank of state devices such as fuses and anti-fuses determine the enabling and disabling of redundant circuitry, a scheme for blowing one or more state devices by applying a programing voltage through a switching circuit comprising thin film transistors (TFTs) which are not damaged by the device blowing, programming voltage. The TFTs can be activated by a low voltage enable signal provided by a state device designator logic module.

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patent: 5299152 (1994-03-01), Ishihara et al.
patent: 5309394 (1994-05-01), Wuertz et al.
patent: 5319592 (1994-06-01), Nguyen
patent: 5392245 (1995-02-01), Manning
patent: 5487037 (1996-01-01), Lee
patent: 5552743 (1996-09-01), Manning

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