Electrostatic discharge protection for a printed circuit board

Details Electrostatic discharge protection for a printed circuit board Electrostatic discharge protection for a printed circuit board

1989-08-31

1991-07-02

Pellinen, A. D.

Electricity: electrical systems and devices

Discharging or preventing accumulation of electric charge

Specific conduction means or dissipator

361212, 379437, H05F 302, H05F 304

Patent

active

050290410

ABSTRACT:
A printed circuit path, which connects to a reference potential point, is provided along a portion, or more, of a printed circuit board (PCB) assembly which requires protection from electrostatic discharge (ESD). This printed circuit board path has a plurality of intentionally pointed protrusion integrally formed along its length and which point preferably toward the direction from which the electrostatic discharge is likely to approach the printed circuit board assembly; i.e. through housing mating edges or housing surface openings. The pointed conductor path is locate closer to the ESD regions of concern than other circuit paths or component solder pads. The pointed protrusion preferentially attract electrostatic discharges to itself rather than allow the discharges to strike other paths or components further in on the PCB assembly, thereby avoiding component damage.

REFERENCES:
patent: 3676742 (1972-07-01), Russell et al.
patent: 4473755 (1984-09-01), Imai et al.
patent: 4531176 (1985-07-01), Beecher
patent: 4532419 (1985-07-01), Takeda
patent: 4591945 (1986-05-01), Ugon
patent: 4667266 (1987-05-01), Masuoka et al.
patent: 4750081 (1988-06-01), Zhang
patent: 4821320 (1989-04-01), Andert et al.

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