Patent ID: 8102055
Filing Date: 2012-01-24
Classification: H01L,H05K,Y02P

Abstract:
1. A semiconductor device, comprising: a semiconductor chip; a base substrate; a wiring that is positioned on the base substrate, a first portion of the wiring having a first surface facing the base substrate, a first part of the first surface of the first portion of the wiring adhering to the base substrate, a second part of the first surface of the first portion of the wiring not being in contact with the base substrate, a tip of the wiring being positioned between the semiconductor chip and the base substrate, a second portion of the wiring being positioned between the first portion of the wiring and the tip of the wiring; an electrode that is positioned between the wiring and the semiconductor chip, the electrode contacting with the second portion of the wiring; and an eutectic alloy, a part of the eutectic alloy being positioned between the second part of the first surface of the first portion of the wiring and the base substrate.