Patent ID: 6533591
Filing Date: 2003-03-18
Classification: H01R

Abstract:
A method for forming fine pitch contacts used in a ZIF socket comprising the following steps:stamping a contact strip to form a plurality of contacts and a carrier strip interconnecting the contacts, each contact having a first portion distal from the carrier strip, said first portion comprising a pair of arcuate arms defining a circular receiving space therebetween and a pair of contacting fingers projecting from respective distal ends of said pair of arcuate arms and extending parallel to each other, said contact also comprising a retaining portion extending from said first portion to the carrier strip, and a second portion projecting from said retaining portion and connecting with the carrier strip, said first portion, said retaining portion and said second portion being coplanar with each other; bending said first portions of the contacts to form contacting portions perpendicular to said retaining portions and said second portions; and configuring said second portions of the contacts to form soldering portions; wherein the width of said portion stamped on the contact strip is smaller than 1.27 mm, wherein the stamping step comprises forming contacting faces on inner surfaces of said pair of contacting fingers, which are perpendicular to said retaining portion and said second portion during the stamping step, wherein a thickness of the contacting faces is equal to a thickness of the arms and the fingers.