Patent ID: 7189927
Filing Date: 2007-03-13
Classification: H01L,H05K,Y02P,Y10T

Abstract:
1. An electronic component with bump electrodes, comprising: a substrate; electrode pads provided on the substrate; an insulating film that has openings in correspondence with the electrode pads and is laminated and formed on the substrate; electroconductive connecting elements provided on the electrode pads in the openings, each of the electroconductive connecting elements entirely accommodated in a respective one of the openings In contact with said insulating film; and bump elements that are in direct contact with the electroconductive connecting elements and project from the openings, each of the bump elements including a ball portion and a non-ball portion; wherein each of the electroconductive connecting elements is entirely accommodated in a respective one of the openings in contact with the insulating film, only the non-ball portion of each of the bump elements entering into respective one of the openings in direct contact with the insulating film, of the bump elements being formed entirely above a respective one of the electroconductive connecting elements; and wherein an annular gap is formed between the insulating film and the ball portion of each of the bump elements.