Patent ID: 7283373
Filing Date: 2007-10-16
Classification: G01R,G02F,H01L,H05K

Abstract:
1. An electronic device comprising: IC having an outer peripheral edge portion and an array of pads disposed along the outer peripheral edge portion so as to provide a plurality of sides and corner portions of the array of pads, a preselected number of the pads disposed at each of the corner portions defining inspection pads of the IC; a substrate on which a plurality of inspection patterns are provided at locations corresponding to the inspection pads of the IC such that each inspection pad is brought into contact with a corresponding inspection pattern when the IC is mounted on the substrate to thereby enable electrical inspection of a mounting condition of the IC on the substrate; a pair of inspection lands provided on the substrate and connected to some of the inspection patterns; and a functional element connected to the substrate and activated by the IC; wherein the inspection pads and the inspection patterns are arranged so that the inspection lands are connected electrically when the IC is mounted on the substrate with deviation; wherein each of the corner portions of the array of pads is formed by portions of each of adjacent sides of the array of pads; and wherein the inspection pads comprise two pairs of inspection pads each disposed on one of the adjacent sides of the array of pads.