Browse Prior Art Database

Leadless Pressure Contact Chip Socket

IP.com Disclosure Number: IPCOM000100199D
Original Publication Date: 1990-Mar-01
Included in the Prior Art Database: 2005-Mar-15
Document File: 2 page(s) / 55K

Publishing Venue

IBM

Related People

Thornton, FJ: AUTHOR

Abstract

By means of a molded plastic chip socket, completed circuit chips are retained with chip contacts pressed firmly into contact with connector-board contacts. Connector boards having this chip socket are used in such applications as testing where it is necessary to apply signals to one or more of the chip contacts. The socket is particularly useful for burn-in testing of circuit chips.

This text was extracted from an ASCII text file.
This is the abbreviated version, containing approximately 81% of the total text.

Leadless Pressure Contact Chip Socket

       By means of a molded plastic chip socket, completed
circuit chips are retained with chip contacts pressed firmly into
contact with connector-board contacts.  Connector boards having this
chip socket are used in such applications as testing where it is
necessary to apply signals to one or more of the chip contacts.  The
socket is particularly useful for burn-in testing of circuit chips.

      Referring to Fig. 1, a circuit chip 2 is retained in molded
plastic chip socket assembly 4 which is attached to connector board
6.  Bistable, snap-acting, retaining arms 8 of assembly 4 are shown
in an inward position which results in the application of pressure on
the back (top) edges of the chip 2, thus applying force between
contacts (not shown) on the lower side of the chip front side and the
contacts on the connector board (not shown in Fig. 1).

      Referring to Fig. 2, chip 2 is aligned for insertion into chip
socket 4 which, during chip insertion, has retaining arms 8 snapped
open.  When chip 2 has been inserted to the position indicated by
dashed lines, chip contacts 10 are in alignment with contacts 12 of
board 6. The alignment can be automatic.  For example, the inner
corners of the socket 4 can be molded to assure accurate alignment of
the chip contacts 10 with the board contacts 12.  Other means, such
as shaping of the board contacts to receive the chip contacts, can be
used. By snapping retaining arms inwar...