Patent ID: 7038477
Filing Date: 2006-05-02
Classification: G01R,H01L

Abstract:
1. A contactor comprising: an insulating substrate; a concave portion formed in said insulating substrate and extending in a perpendicular direction from a surface thereof; a plurality of conductive particles disposed in said concave portion, said conductive particles being aligned with each other in a direction in which said concave portion extends, and being contacted with each other; an insulating film formed on the surface of said insulating substrate; and a conductive portion formed at a position of said insulating film corresponding to an opening of said concave portion, wherein a coefficient of linear expansion of each of said conductive particles is larger than a coefficient of linear expansion of said insulating substrate, and when said contactor is heated, each of said conductive particles undergoes thermal expansion so that said conductive portion protrudes by being pressed by said conductive particles.