Hole geometry for printed circuit boards
US4646204A · kind A · utility
5Cited by
11References
8Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 10, 1986 |
| Grant date | Feb 24, 1987 |
| Priority date | — |
| Expiry date | Feb 10, 2006 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K2201/10878
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.