Importance

Loading Importance Indicators...

Abstract

Connector assemblies are provided for mounting leadless chip carriers to a printed wiring board (PWB). Each connector assembly includes an elongate rigid and electrically insulative body, and electrically conductive leads. The body has two rows of pockets, each containing a lead. Each lead has two widened contact sectors. The shape of the lead is such that with one end mounted in the PWB, the sectors are opposite one another and approximately the same distance from the PWB. Each connector assembly is mounted by soldering the body to the PWB and mounting one end of each lead to the PWB. Each pocket has a channel narrower than the sector and wider than the general lead width, to restrain its associated lead to flexing movement in one direction transverse to the body. The sectors are offset in this transverse direction from the lead end mounted to the PWB, but in different amounts, thus to enable a staggered positioning of adjacent leads. As a chip carrier is inserted, it contacts and elastically deforms the leads, initially driving one sector of each lead against an inside wall of its associated pocket, then deforming that portion of the lead between its two sectors to move them toward each other. With the chip carrier fully inserted, the leads push against the chip carrier pads to electrically link the carrier with PWB circuitry and retain the chip carrier against the PWB.

Loading the Abstract Image...

First Claim