Patent ID: 6670706
Filing Date: 2003-12-30
Classification: H01L,H05K,Y02P

Abstract:
A semiconductor device comprising:a semiconductor pellet including a plurality of bump electrodes; an interconnection board including an insulating substrate and a plurality of pad electrodes formed on said insulating substrate at positions corresponding to said bump electrodes, wherein said bump electrodes and pad electrodes are superposed so that said semiconductor pellet and interconnection board are in opposition to one another and electrically connected together, and wherein said bump electrodes on said semiconductor pellet are arranged in at least two groups forming straight lines that perpendicularly intersect, the insulating substrate forming said interconnection board being a material with resilience, said pad electrodes comprise superposition regions where said pad electrodes and said bump electrodes are superposed and neighboring regions surrounding said superposition regions, and all of said neighboring regions extend in the same direction which is different from the arrangement directions of the bump electrodes.