Static information storage and retrieval – Read only systems – Semiconductive
Patent
1982-02-18
1984-10-30
Shaw, Gareth D.
Static information storage and retrieval
Read only systems
Semiconductive
365105, G11C 1140
Patent
active
044803184
ABSTRACT:
A method of programming a cell in a PROM, wherein the cell comprises a bipolar transistor having a floating base, comprises applying a current rising with time across the emitter to collector contacts of the bipolar transistor with the collector contact serving as the reference potential, measuring the time at which the rise in voltage suddenly stops and the voltage drops a small amount, and then holding the current for a selected time following the voltage drop, thereby to insure that the emitter base junction of the bipolar transistor is destroyed while at the same time not damaging the base collector junction of the biplolar transistor.
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DeWitt et al., Memory Array, IBM Technical Disclosure Bulletin, vol. 10, No. 1, 6/67, p. 95.
Dorsey Daniel K.
Fairchild Camera & Instrument Corp.
MacPherson Alan H.
Olsen Kenneth
Shaw Gareth D.
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