Apparatus for improving antifuse programming yield and reducing

Details Apparatus for improving antifuse programming yield and reducing Apparatus for improving antifuse programming yield and reducing

1991-01-04

1992-07-14

James, Andrew J.

Static information storage and retrieval

Magnetic bubbles

Guide structure

357 13, 365 96, 3652257, H01L 2702

Patent

active

051307774

ABSTRACT:
The present invention includes four approaches to reduce the unintended programming of antifuses while programming selected antifuses and to decrease the programming time. The first approach includes circuitry to maintain the voltage placed on unselected antifuses at a constant level by use of a voltage source. According to the second approach, a resistor is included in series with the voltage source. According to the third approach, a diode is included in series with the voltage source. According to the fourth approach, a MOS implementation of a diode is included in series with the voltage source.

REFERENCES:
patent: 3582908 (1971-06-01), Koo
patent: 4507757 (1985-03-01), McElroy
patent: 4569120 (1986-02-01), Stacy et al.
patent: 4605872 (1986-08-01), Rung
patent: 4638243 (1987-01-01), Chan
patent: 4646264 (1987-02-01), Matsuzaki
patent: 4914055 (1990-04-01), Gordon et al.

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