Patent ID: 6054171
Filing Date: 2000-04-25
Classification: H01L,H05K,Y02P

Abstract:
A method for forming a plurality of protruding electrodes in spaced relationship to each other, comprising the steps in sequence of:forming a first film of an organic or polymeric material on the top portion of each protruding electrode formed on a pad;forming a second film of a polymeric material on said pad to bury the base portion of said protruding electrode while leaving the top portion of each said protruding electrode exposed, the thickness of said second film being greatest where it contacts each said protruding electrode, and gradually reducing in thickness with distance from each protruding electrode; andremoving said first film after said second film is cured;wherein said first film is of an organic or polymeric material which has no affinity with said polymeric material of said second film.