Electrostatic discharge protective circuitry equipped with a...

Details Electrostatic discharge protective circuitry equipped with a... Electrostatic discharge protective circuitry equipped with a...

2005-03-29

2005-03-29

Leja, Ronald (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Load shunting by fault responsive means

Reexamination Certificate

active

06873505

ABSTRACT:
A semiconductor device having an electrostatic discharge protective circuitry adapted to a common discharge line (CDL) is disclosed. In the embodiments of the present invention, semiconductor device includes a plurality of bonding pads, each having at least one connecting terminal, a common discharge line, and a protective device connected between the connecting terminal and the common discharge line. Moreover, the protective device is composed of a silicon-control-rectifier that is used for electrostatic discharge protection and a zener diode for lowering a trigger voltage of the silicon-control-rectifier.

REFERENCES:
patent: 4870530 (1989-09-01), Hurst et al.
patent: 5973901 (1999-10-01), Narita et al.

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