Electricity: conductors and insulators – Conduits – cables or conductors – Preformed panel circuit arrangement
Reexamination Certificate
2011-03-15
2011-03-15
Chen, Xiaoliang (Department: 2835)
Electricity: conductors and insulators
Conduits, cables or conductors
Preformed panel circuit arrangement
C174S260000, C174S266000, C174S267000, C257S690000, C257S686000, C257S730000, C257S784000, C257S779000, C361S721000, C361S760000, C361S767000, C361S784000, C361S790000, C438S014000, C438S106000, C438S622000
Reexamination Certificate
active
07906733
ABSTRACT:
Provided is an electronic circuit device in which the bonding state of electrodes can be detected easily with high precision. The electronic circuit device has a stack structure in which a plurality of electronic circuit boards (1a, 1b, 100a, 100b, 100c) are stacked in three or more layers through ball electrodes (10a, 10b, 20a, 20b) bonded to electrode pads (30a, 30b, 40b, 50a, 60a), wherein the electrode pads are disposed such that transmission shaded images of a pair of the electrode pads provided between adjacent layers partially overlap each other and have a non-overlapping region in which the transmission shaded images of the pair of electrode pads are free from overlapping and such that the transmission shaded image of the non-overlapping region is at least partially free from overlapping with transmission shaded images of all the other electrode pads.
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Canon Kabushiki Kaisha
Chen Xiaoliang
Fitzpatrick ,Cella, Harper & Scinto
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