Patent ID: 7666692
Filing Date: 2010-02-23
Classification: H01L

Abstract:
1. A manufacture method for a semiconductor device comprising steps of: (a) preparing a first substrate; (b) forming a first bonding layer above said first substrate to form a support substrate; (c) preparing a second substrate; (d) forming a semiconductor layer on said second substrate; (e) forming a second bonding layer above said semiconductor layer to form a semiconductor lamination structure; (f) forming a diffusion material layer containing diffusion material by at least one of a step (f1) of forming said diffusion material layer above said first substrate and forming said first bonding layer above said diffusion material layer, respectively at said step (b) and a step (f2) of forming said diffusion material layer above said semiconductor material layer and forming said second bonding layer above said diffusion material layer, respectively at said step (e); and (g) bonding said first bonding layer of said support substrate and said second bonding layer of said semiconductor lamination structure to form a bonding body, said step (g) including a step (g1) of forming a first mixture body by mixing said first and second bonding layers, said first or second bonding layer containing eutectic material and a step (g2) of forming a second mixture body by mixing said first mixture body and the diffusion material of said diffusion material layer, said second mixture body having a melting point higher than a melting point of said first mixture body.