Protection of integrated circuit devices

Details Protection of integrated circuit devices Protection of integrated circuit devices

1992-06-22

1995-02-21

Pellinen, A. D.

Electrical transmission or interconnection systems

Switching systems

Condition responsive

361 54, 307100, 257921, 327325, 327509, H03K 1908

Patent

active

053919319

ABSTRACT:
An arrangement for protecting an integrated circuit device (11) against latch up during a nuclear event comprising a capacitance (15) and a switch (17) connected in parallel across the power supply lines (13) of the device. When the power supply lines are connected to a power supply (19) the capacitance stores energy sufficient to supply necessary operating currents to the device during its normal operation. The switch is arranged so that, under a transient gamma pulse incident thereon during a nuclear event, its impedance is set to a low value at such a rate that the energy stored by the capacitance is discharged through the switch and the voltage applied to the device via the power supply lines is pulled down to such a level and at such a rate as to prevent transient gamma pulse induced latch-up in the device.

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IBM Technical Disclosure Bulletin, vol. 14, No. 4, Sep. 1971, p. 1233, "Radiation Modulated Conductivity Switch".
Patent Abstracts of Japan, vol. 9, No. 81, 59-214252, Apr. 10, 1985.
IBM Technical Disclosure Bulletin, vol. 28, No. 2, Jul. 1985, pp. 735-736, "Photoconductor detector and switch to protect integrated circuits from cosmic rays-induced damage".

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