Patent ID: 6873176
Filing Date: 2005-03-29
Classification: G01R,G09G

Abstract:
1. A die-level prober for testing unpackaged liquid crystal on silicon (LCOS) display panels, each of which comprises a first substrate, a second substrate, a liquid crystal layer positioned between the first substrate and the second substrate, at least a first contact pad positioned on the first substrate, and at least a second contact pad positioned on the second substrate, the die-level prober comprising: a chuck; a tray positioned on a surface of the chuck comprising: at least a recession for situating at least one of the unpackaged LCOS display panels; and a conductive connecting structure positioned on one side of the recession, the connecting structure having a first portion for electrically contacting the first contact pad and a second portion electrically connected to the first portion; and a probe card positioned above the tray, the probe card having at least two probes for electrically contacting the second contact pad and the second portion respectively.