Patent ID: 9048090
Filing Date: 2015-06-02
Classification: H01L

Abstract:
1. A method of manufacturing a semiconductor element, comprising: forming a first bonding layer comprising a metal which forms a eutectic crystal with Au, on a first substrate to provide a first laminated body; forming an element structure layer including a semiconductor layer on a second substrate; forming a second bonding layer comprising Au on the element structure layer to provide a second laminated body; and performing heating pressure-bonding on the first and second laminated bodies, with the first and second bonding layers facing each other, wherein a heating temperature of the second substrate in said heating pressure-bonding is made higher than a heating temperature of the first substrate, and wherein in said heating pressure-bonding, eutectic crystal formation is performed with a temperature difference between the temperature of the second substrate and the temperature of the first substrate maintained in a range of from 5° C. to 20° C.