Patent ID: 7449910
Filing Date: 2008-11-11
Classification: B33Y,G01R,H01L,H05K

Abstract:
1. A system for testing a semiconductor wafer containing a plurality of semiconductor components having a plurality of component contacts comprising: a test circuitry configured to apply test signals to the components; a testing apparatus configured to support and move the wafer; an interconnect on the testing apparatus comprising a substrate having a planar side and a plurality of interconnect contacts on the substrate in electrical communication with the test circuitry and configured to electrically engage the component contacts, each interconnect contact comprising a continuous compliant conductive layer on the substrate comprising a stepped base on the planar side, a tip portion elevated with respect to the planar side for contacting a component contact, an opposed pair of shaped spring segment portions attached to the base supporting the tip portion, and a hollow interior portion at least partially enclosed by the planar side, the spring segment portions and the tip portion, the tip portion configured to electrically engage the component contact with a force exerted by the spring segment portions.