Patent ID: 7221174

Claim:
A system for low-current testing of a test device comprising: (a) a probing device for probing a probing site on said test device, said probing device including a dielectric substrate having first and second sides, an elongate conductive path on said first side of said substrate, an elongate probing element connected to said elongate conductive path so as to extend in a cantilevered manner beyond said substrate, and a conductive area on said second side of said substrate; (b) a probe housing matingly detachably engageable with said probing device; (c) said probe housing being engaged with both a first cable that includes a first conductor surrounded by a second conductor and a second cable including a third conductor surrounded by a fourth conductor; (d) a first conductive path that electrically interconnects said first conductor, said third conductor, and said elongate conductive path on said first side of said substrate when said probing device is engaged with said probe housing; and (e) a second conductive path that electrically interconnects said second conductor and said fourth conductor with said conductive area on said second side of said substrate when said probing device is engaged with said probe housing, where said first conductive path is electrically isolated from said second conductive path.