Circuit board RF shielding
US6239359A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 11, 1999 |
| Grant date | May 29, 2001 |
| Priority date | — |
| Expiry date | May 11, 2019 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K9/0028
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An EMI shield for use on a printed wiring board (PWB) of a circuit pack includes an open-ended box-like structure having a laterally extending flange completely encircling the opening into the box-like structure. The box is of an EMI impervious material, preferably stainless steel. An electrically conductive O-ring gasket is disposed in a groove in the flange. Both the groove and the flange completely encircle the box opening. The shield is secured to a PWB by pegs secured to the flange at positions radially outwardly of the gasket and extending entirely through openings through the PWB. Preferred pegs comprises pairs of side-by-side prongs integral with the shield flange but extending downwardly therefrom. Each prong terminates in an oppositely directed, return-bent detent with the detent pairs functioning as a spring-biased latch for removably mounting the shield to the PWB.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.