Ground ring/spark gap ESD protection of tab circuits

Details Ground ring/spark gap ESD protection of tab circuits Ground ring/spark gap ESD protection of tab circuits

1991-07-23

1994-05-24

Gaffin, Jeffrey A.

Electricity: electrical systems and devices

Discharging or preventing accumulation of electric charge

361220, H05F 302

Patent

active

053154720

ABSTRACT:
An electrostatic discharge structure protection structure formed on an interconnect circuit (20) that includes elongated interconnect lines (13) and interconnect contact pads (17) formed on a dielectric substrate (11) wherein portions of the interconnect circuit are subject to physical contact by a person. The electrostatic discharge protection structure includes an interconnected conductive grounding metallization ground pattern that includes a ground ring pattern (19) adjacent selected edges of the perimeter of the substrate and conductive metallization traces (29) adjacent selected edges of openings in the substrate. The electrostatic discharge protection structure further includes spark gaps (23a, 23b) formed between the interconnect pads and the conductive grounding pattern, and grounding pads (25') exposed by openings in the substrate.

REFERENCES:
patent: 3676742 (1972-07-01), Russell et al.
patent: 4531176 (1985-07-01), Beecher, II
patent: 4617605 (1986-10-01), Obrecht et al.
patent: 5029041 (1991-07-01), Robinson et al.

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