Patent ID: 6036503
Filing Date: 2000-03-14
Classification: H05K

Abstract:
An IC socket for a BGA package comprising:a socket body having at least two mutually opposing parallel surfaces;a plurality of contact pins embedded in said socket body perpendicular to said two parallel surfaces and corresponding to the arrangement of a plurality of ball bumps of a BGA package such that tips of said contact pins protrude from one of said two parallel surfaces;a flat guide plate having a plurality of holes which matches the arrangement and shape of said plurality of ball bumps, elastically supported so as to be in a floating state with respect to said surface through which protrude said plurality of contact pins, and housing a tip of one of said plurality of contact pins in each of said holes;the rims of the openings of each of said holes being a tapered form so as to guide the center of each of said ball bumps to within the limits of the outer form of the tips of each of said contact pins;flat tabs arranged on mutually opposing sides of said guide plate;springs pushing up each of said tabs such that each tab is in a floating state with respect to said socket body; andscrews passing through said tabs and screwed into said socket body, using the head of said screws for restraining said tabs at a prescribed height.