Patent ID: 6612861
Filing Date: 2003-09-02
Classification: G01R,H01R

Abstract:
A method for producing a contact structure, comprising the following steps of:forming a sacrificial layer on a surface of a silicon substrate; forming a photoresist layer on the sacrificial layer; aligning a photo mask over the photoresist layer and exposing the photoresist layer with light through the photo mask, the photo mask including an image of the contactors; developing patterns of the image of the contactors on a surface of the photoresist layer; forming the contactors made of electric conductive material in the patterns on the photoresist layer by depositing the conductive material, each of the contactors being comprised of a tip portion provided at one end thereof, a base portion provided at another end thereof oriented in a direction opposite to the tip portion, and a spring portion provided between the tip portion and the base portion having a semi-circular shape or a loop shape; stripping the photoresist layer; removing the sacrificial layer so that the contactors are separated from the silicon substrate; and mounting the contactors on a contact substrate having through holes to receive ends of the contactors therein.