Patent ID: 7282934

Claim:
A space transformer for electrically interconnecting a probe head to a printed circuit board, comprising: a flexible multilayer circuit having device under test contact pads formed on a first side thereof and having printed circuit board contact pads formed on a second side thereof; electrically conductive circuit traces extending between said device under test contact pads and said printed circuit board contact pads; a shim plate fastened to a periphery of said first side of said flexible multilayer circuit; a bottom plate fastened to a periphery of said second side of said flexible multilayer circuit, said bottom plate having a plurality of internal apertures separated by bottom plate stanchions where said bottom plate stanchions are aligned with said device under test contact pads and said internal apertures are aligned with said printed circuit board contact pads; and a plurality of interconnects bonded to and electrically interconnected with said printed circuit board contact pads and extending through said internal apertures.