Hole geometry for printed circuit boards

Details Hole geometry for printed circuit boards Hole geometry for printed circuit boards

1986-02-10

1987-02-24

Grimley, Arthur T.

Electricity: electrical systems and devices

Miscellaneous

339 17C, 339221R, 361405, H05K 118

Patent

active

046462040

ABSTRACT:
The printed circuit board (PCB) is provided with a plurality of square connector stakes, which are pressed into the respective holes disposed in the PCB. The connector stake holes are arranged on the PCB such that a conductive pad encircles each of the connector holes. The connector holes have a cross-section that provides the required mechanical interference between the connector stakes and the connector holes to hold the stakes in place prior to soldering. At the same time, the walls of the holes are configured to limit the flux from migrating to the upper portions of the connector stakes during the wave soldering operation.

REFERENCES:
patent: 3290558 (1966-12-01), Sapy
patent: 3562591 (1971-02-01), Schmidt
patent: 3601750 (1971-08-01), Mancini
patent: 3621445 (1971-11-01), Horecky
patent: 3673543 (1972-06-01), Garner
patent: 3702422 (1972-11-01), Schor
patent: 4288840 (1981-09-01), Konishikawa et al.
patent: 4339784 (1982-07-01), Shearer
patent: 4345301 (1982-08-01), Nelson
patent: 4377321 (1983-03-01), Wersenburger
patent: 4503611 (1985-03-01), Sampson et al.

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