Patent ID: 8633103
Filing Date: 2014-01-21
Classification: H01L

Abstract:
1. A manufacturing method of a semiconductor device, comprising the steps of: (a) providing a semiconductor chip including an electrode comprised of Cu, and a wiring substrate including an electrode comprised of Cu; (b) mounting the semiconductor chip over the wiring substrate via a solder in which solder powders and particles are mixed, the solder being supplied between the electrode of the semiconductor chip and the electrode of the wiring substrate, each of the solder powders being constituted by an alloy consisting essentially of Sn and In, and each of the particles being constituted by a non-alloy consisting essentially of Ni; and (c) heating the solder to thereby form a Sn—Cu—Ni compound in the solder, the Sn—Cu—Ni compound having one of the particles as a nucleus.