Socket for BGA packages
US6293810A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2000 |
| Grant date | Sep 25, 2001 |
| Priority date | — |
| Expiry date | Feb 8, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05K7/1061
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A socket for a BGA package is provided which is of relatively simple construction and which provides reliable and efficient interconnection of a BGA package and a printed circuit board. The socket comprises a contact assembly having an array of resilient conductive columns having respective contact ends, the columns being mounted on a thin insulative sheet. The contact assembly is supported on a frame of insulating material and which has alignment posts for alignment of the contact assembly to the frame and for alignment of the frame and mounted contact assembly to an associated circuit board. The frame also includes latch elements for retaining the contact assembly on the frame. The socket is mounted onto a printed circuit board which has an array of contact areas corresponding to the array of resilient contacts of the socket. A BGA package is placed onto the socket frame and the package is maintained in alignment on the frame such that the ball contacts engage the respective contacts of the contact assembly of the socket. The package is retained in the socket by a retention mechanism. The socket can include elements for preventing overstress of the resilient contacts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.