Semiconductor integrated circuit

Details Semiconductor integrated circuit Semiconductor integrated circuit

1995-07-21

1997-10-21

Monin, Donald

Active solid-state devices (e.g., transistors, solid-state diode

Field effect device

Having insulated electrode

257360, 257369, H01L 2906, H01L 2978

Patent

active

056799713

ABSTRACT:
In a semiconductor integrated circuit having a plurality of electronic circuits each provided with interfaces used for effecting signal transmission, and supplied with operating voltages from a plurality of independent power supply terminals, protective elements each having high threshold voltages at which the elements are off in the ordinary state of power supply are provided, and a resistor and a diode both for preventing electrostatic breakdown are connected to the gate of an input MOSFET of the interface for carrying out signal transmission between the electronic circuits. Even when a high voltage due to static electricity is applied to each power supply terminal while the semiconductor integrated circuit is handled, electrostatic breakdown of the interface can be prevented by the protective element or the electrostatic breakdown preventive circuit comprising a resistor and a diode.

REFERENCES:
patent: 5426323 (1995-06-01), Reczek et al.
patent: 5514893 (1996-05-01), Miyanaga et al.
Kalter, "Semiconductor Chip Pad Protect Device" IBM TDB vol. 15 No. 12, May 1973, pp. 3753-3754.

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