Patent ID: 8426987
Filing Date: 2013-04-23
Classification: G01R,H01L,H05K

Abstract:
1. A misalignment detection device comprising: a first substrate comprising a first positioning electrode and a second positioning electrode adjacent to the first positioning electrode; a second substrate comprising a third positioning electrode and a fourth positioning electrode adjacent to the third positioning electrode, wherein the third positioning electrode and the fourth positioning electrode substantially correspond to the first positioning electrode and the second positioning electrode, respectively; and at least one detection unit electrically coupled to the first substrate, wherein the at least one detection unit outputs a fault signal in response to a positioning shift occurring between the first and second positioning electrodes and the third and fourth positioning electrodes; wherein the first positioning electrode comprises a first portion and a second portion whose area is smaller than the area of the first portion, and the second positioning electrode comprises a third portion and a fourth portion whose area is smaller than the third portion; and wherein the second portion and the fourth portion are disposed between the first portion and the third portion.