Patent ID: 6351885
Filing Date: 2002-03-05
Classification: H01L,H01R,H05K,Y10T

Abstract:
A method for making at least one conductive bump on a wiring board, said method comprising:overlaying a conductive film on a surface of a transfer plate having at least one chevron-like recess, such that the conductive film assumes the shape of the surface of the transfer plate, including the at least one chevron-like recesses, to form at least one conductive bump; forming an insulating layer on a surface of the conductive film opposite to a surface of the conductive film in contact with the transfer plate, such that the insulating layer fills in the at least one chevron-like recess in the conductive film and the insulating layer has a flat surface opposite to a surface of the insulating layer adjacent to the conductive film; removing the conductive film and insulating layer from the transfer plate; and etching the conductive film to form a wiring pattern.