Patent ID: 8451017

Claim:
A probing assembly for probing an electrical device comprising: (a) a plurality of contacts formed by locating conductive material within a plurality of depressions of a sacrificial substrate, each of said contacts having a length and a contacting portion spaced apart from an axis of moment of said contact, and each contact being electrically connected to a corresponding conductor; and (b) an elastic assembly including a surface supporting said plurality of contacts, said elastic assembly operating in respect to each contact to urge each contact, when in pressing engagement with said electrical device, into tilting motion so that each contact is driven in accordance with said tilting motion into lateral scrubbing movement across said electrical device, each contact remaining supported by said elastic assembly along substantially all of said length during the tilting motion, wherein said plurality of contacts further includes a first conductive material that defines said contacting portion of said plurality of contacts and a second conductive material that supports said first conductive material, wherein said first conductive material is different from said second conductive material, and further wherein a thickness of said first conductive material in a direction that is perpendicular to said elastic assembly and at a point of contact between said electrical device and said contacting portion is greater than a thickness of said first conductive material in a direction that is perpendicular to a side of said first conductive material and in a location where said second conductive material supports said first conductive material.