Patent ID: 6343940
Filing Date: 2002-02-05
Classification: G01R,H01L,H01R,H05K

Abstract:
A contact structure for establishing electrical connection with contact targets, comprising:one piece contact substrate integrally formed with dielectric material and having through holes between upper and lower surfaces thereof and engagement mechanism at outer edges thereof for connecting other contact substrates side-by-side at any desired edges to create a contactor assembly of arbitrary size by expanding the size in four directions; and a plurality of contactors mounted on the contact substrate where each of the contactors is comprised of a tip portion which is protruded in a direction perpendicular to the surface of the contact substrate to form a contact point to contact the contact target, a base portion which is inserted in the through hole provided on the contact substrate, and a spring portion provided between the tip portion and the base portion which produces a spring force when the contactor is pressed against the contact target; wherein the base portion inserted in the through hole of the contact substrate is projected from the upper surface of the contact substrate to function as a contact pad for electrical communication with an electrode on a probe card, and the spring portion of the contactor is provided below the lower surface of the contact substrate.