Non-volatile semiconductor memory circuits

Details Non-volatile semiconductor memory circuits Non-volatile semiconductor memory circuits

1982-08-24

1985-12-10

Popek, Joseph A.

Static information storage and retrieval

Systems using particular element

Flip-flop

365185, G11C 1140

Patent

active

045584320

ABSTRACT:
Memory circuits having a floating gate transistor as a non-volatile storage element are constructed with a shunt transistor across the floating-gate transistor which in the event of a short circuit between the floating gate and the transistor substrate causes the memory to go into a predetermined fail-safe condition. The circuits are cross-coupled flip-flops with a driver and a complementary driver or load connected in series in each of the circuits, one driver or complementary driver or load being a floating gate transistor such as a FATMOS. Short circuiting of the floating gate to the control gate of the floating-gate transistor gives the same fail-safe condition.

REFERENCES:
patent: 4207615 (1980-06-01), Mar
patent: 4348745 (1982-09-01), Schmitz

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