Internal high voltage (Vpp) regulator for integrated circuits

Details Internal high voltage (Vpp) regulator for integrated circuits Internal high voltage (Vpp) regulator for integrated circuits

1983-08-31

1986-04-08

Moose, Jr., Harry E.

Electricity: electrical systems and devices

Safety and protection of systems and devices

Voltage regulator protective circuits

323224, 361 56, 361 91, G05F 308

Patent

active

045816727

ABSTRACT:
A circuit for regulating the internal programming voltage (Vpp) supplied to an integrated circuit memory device. The invention limits the internal programming voltage to a maximum value no greater than the field assisted breakdown voltage of on-chip transistors and/or the field transistor threshold voltage. Representatives of the several different types of transistors provided on an integrated circuit substrate are incorporated into the voltage regulating circuit. The regulator transistors are placed in the circuit in such a way that they are designed to break down first in the event of an excessive internal programming voltage (Vpp). In this way, the regulator transistors limit the voltage sent to the operating circuitry of the integrated circuit.

REFERENCES:
patent: 4243898 (1981-01-01), Seelbach
patent: 4306185 (1981-12-01), Leuschner
patent: 4375074 (1983-02-01), Glogolja
patent: 4423431 (1983-12-01), Sasaki
patent: 4533846 (1985-08-01), Simko

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