Patent ID: 9267968
Filing Date: 2016-02-23
CPC Classification: G01R

Claim Text:
1. A probe card assembly for testing circuit boards comprising: a multi-layered dielectric plate aligned with an integrated circuit, said integrated circuit having arrayed upon a surface thereof a first plurality of electrical contacts arranged in a pattern, said dielectric plate having arrayed upon a surface thereof a second plurality of electrical contacts arranged in a pattern substantially matching said first plurality of electrical contacts; a carbon nanotube interposer interposed between said dielectric plate and said integrated circuit, said nanotube interposer having compliant carbon nanotubes that are arranged to match the pattern of electrical contacts on said integrated circuit and said dielectric plate; and a plurality of substantially non-compliant vertical probes arrayed in a pattern upon said nanotube interposer and joined with said nanotubes, said vertical probes making electrical contact with said first plurality of electrical contacts and said second plurality of electrical contacts via said carbon nanotubes, wherein the probes have a substantially elongated conformation more than said carbon nanotubes.