Patent ID: 6472890
Filing Date: 2002-10-29
Classification: G01R

Abstract:
A method of producing a contact structure for electrical communication with a contact target, comprising the following steps of:providing a silicon substrate cut in a (100) crystal plane; applying a first photolithography process on an upper surface of said silicon substrate for forming an etch stop layer on said silicon substrate; forming a first insulation layer on said etch stop layer; forming a second insulation layer on a bottom surface of said silicon substrate; applying a second photolithography process on said second insulation layer for forming an etch window in said second insulation layer; performing an anisotropic etch on said silicon substrate through said etch window for forming a base portion of a contactor; depositing conductive material on said first insulation layer for forming a conductive layer in a beam shape projected from said base portion; and mounting a plurality of contactors produced in the foregoing steps on a contact substrate in predetermined diagonal directions.