Patent ID: 7180184
Filing Date: 2007-02-20
Classification: H01L

Abstract:
1. A conductive bump for a semiconductor chip that has a pad-mounting surface which is provided with at least a bonding pad thereon, said conductive bump comprising: a first metal layer adapted to be bonded to the bonding pad; a conductive paste body formed on said first metal layer; and a second metal layer formed on said paste body such that said paste body is sandwiched between said first and second metal layers; said first metal layer also has a base portion bonded to said bonding pad, and being in contact with said second metal layer through a peripheral portion extending from said base portion in a transverse direction relative to said base portion and cooperating with said base portion to confine a recess therebetween, said conductive paste body filling said recess, said recess being closed by said second metal layer.