Antifuse programming method and apparatus

Details Antifuse programming method and apparatus Antifuse programming method and apparatus

1996-08-01

1997-09-16

Nelms, David C.

Static information storage and retrieval

Read only systems

Fusible

3652257, 36518907, 327525, G11C 1700, G11C 700

Patent

active

056687516

ABSTRACT:
A self-timing antifuse programming controller optimizes programming of one or many antifuses. A programming current through the antifuse is monitored until it reaches a current trip point, thereby initiating a delay period. The delay period is determined by charging a capacitor with a scaled replicate of the antifuse current until a trip point voltage is reached. Antifuses which are more resistive receive a longer programming time. The current trip point and delay period are independently programmable. The antifuse programming controller also flags completion of antifuse programming allowing expeditious programming of further antifuses in an array of antifuses to minimize overall programming time.

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