Radio frequency shield enclosure for a printed circuit board
AssigneesSiemens Information & Communication Moblie, LLC, Haerter Stanztechnik GmbH
InventorsDavid Owen West, Michael Berner, Kenneth Lawrence Weselake
Life of this patent
Estimating the term…
Abstract
A radio frequency shield enclosure (100) is mounted on a printed circuit board and is adapted to allow optical checking of the components enclosed by the shield enclosure (100). A cover (402) is removably attached to a frame (102) on the printed circuit board for access to the printed circuit board components therein. Material and spring forces are selected to minimize the forces on the printed circuit board when attaching or removing the shield enclosure cover (402). Any openings or gaps in the radio frequency shield enclosure cover (402) are small enough to prevent radio frequency energy at the highest anticipated frequency from being radiated outside of the radio frequency shield enclosure (100).
Claims24
A radio frequency shield enclosure having a removable cover, comprising:
- a frame adapted for attachment to a printed circuit board;
- and
- a cover having a plurality of openings, a plurality of grounding finger contacts and a plurality of alignment finger contacts, wherein the plurality of alignment finger contacts mate with alignment locations on said frame to align said cover therewith, and the plurality of grounding finger contacts electrically connect said cover to said frame, whereby the cover openings, spaces between the plurality of grounding finger contacts and the plurality of alignment finger contacts form the radio frequency shield enclosure, wherein the plurality of openings are sized to substantially prevent electromagnetic radio frequency energy from entering and leaving the radio frequency shield enclosure, and the plurality of openings are spaced close enough together so that components within the radio frequency shield enclosure are visually observable.
A method of assembling a radio frequency shield enclosure having a removable cover to a printed circuit board, said method comprising the steps of:
- fabricating a frame adapted for attachment to a printed circuit board;
- fabricating a cover having a plurality of openings, a plurality of grounding finger contacts and a plurality of alignment finger contacts, wherein the plurality of alignment finger contacts mate with alignment locations on said frame to align said cover therewith, and the plurality of grounding finger contacts electrically connect said cover to said frame, whereby the cover openings, spaces between the plurality of grounding finger contacts and the plurality of alignment finger contacts form the radio frequency shield enclosure, wherein the plurality of openings are sized to substantially prevent electromagnetic radio frequency energy from entering and leaving the radio frequency shield enclosure, and the plurality of openings are spaced close enough together so that components within the radio frequency shield enclosure are visually observable;
- and
- assembling the frame and cover together before attaching to the printed circuit board.
The method of further comprising the steps of removing and replacing the cover when replacing a component on the printed circuit board.
Dependencies are inferred from the claim text.