Patent ID: 7385411
Filing Date: 2008-06-10
Classification: G01R,Y10T

Abstract:
1. A probe card apparatus having a preselected amount of total compliance, said probe card apparatus comprising: a plurality of probes configured to contact an electronic device to be tested, said plurality of probes having a first amount of compliance; and compliance means for providing within said probe card apparatus a selected additional amount of compliance, wherein said preselected amount of total compliance is a sum of said first amount of compliance and said selected additional amount of compliance, wherein: said first amount of compliance corresponds to a first spring constant, which is a first ratio of force to deflection, said additional amount of compliance corresponds to a second spring constant, which is a second ratio of force to deflection, and a given amount of force displaces said probes a distance that corresponds to a sum of said first spring constant and said second spring constant.