Patent ID: 8227710
Filing Date: 2012-07-24
Classification: H01L,H05K,Y10T

Abstract:
1. A wiring structure comprising: an insulating layer having an upper surface, a lower surface, and a connection hole communicating between the upper and bottom surfaces, the connection hole including a bottom at the lower surface and an opening at the upper surface; a body to be wired that is placed below the lower surface or at the bottom inside the connection hole so as to expose at least a portion thereof from the bottom of the connection hole, and a conductive pattern that is patterned inside and outside of the connection hole and that has an electrode portion disposed inside the connection hole and connected to the body to be wired, wherein a cross-sectional area of the electrode portion increases toward the body to be wired and the electrode portion is disposed to contact at least a portion of an inner wall of the connection hole and so as to define a space region between the electrode portion and the inner wall of the connection hole in which at least a portion of the inner wall of the connection hole and the electrode portion are not in contact, and wherein an upper-most point of the electrode portion is below the opening of the connection hole.