Patent ID: 8222912

Claim:
A probe head assembly comprising: a plurality of test probes, wherein one or more test probes from the plurality oftest probes include a tip portion with a tip end for making electrical contact with a device under test, a curved compliant body portion and a tail portion with a tail end for making electrical contact with a space transformer; and a probe head structure comprising: a guide plate having a plurality of apertures formed therein, wherein the plurality of apertures disposed in the guide plate are coated with a non-conductive material, a template having a plurality of apertures formed therein, wherein the tip portions of the one or more test probes are disposed through the plurality of apertures in the guide plate, the tail portions of the one or more test probes are disposed through the plurality of apertures in the template and the curved compliant body portions of the one or more test probes are disposed between the guide plate and the template, and wherein the curved compliant body portions of the one or more test probes are shaped so that for each of the one or more test probes, the tail portion is offset from the tip portion.