Patent ID: 6350957
Filing Date: 2002-02-26
Classification: H01L,H05K,Y10T

Abstract:
A bump-type contact head comprising:an insulating substrate; a movable region formed in a predetermined position in the insulating substrate so that at least an upper surface of the movable region can move up and down, the upper surface of the movable region being flush with an upper surface of the insulating substrate; a plurality of signal conductors arranged in the upper surface of the insulating substrate and extending to the movable region, such that at least a tip end of each said signal conductor is situated in the movable region; and bumps protruding individually from the upper surfaces of the respective tip ends of the signal conductors, each said bump being a multilayer structure formed by successively electrodepositing at least two different electrically conductive materials; wherein only an upper surface of each said signal conductor is exposed in the respective upper surfaces of the insulating substrate and the movable region.