Patent ID: 9484238
Filing Date: 2016-11-01
CPC Classification: B24B,B32B,H01L

Claim Text:
1. An attachment method of attaching a support body to a substrate via an adhesive layer, a release layer to be altered when irradiated with light being formed on the support body, the method comprising: overlapping the support body over the substrate under a reduced pressure environment via the release layer and the adhesive layer; temporarily fixing the support body to the substrate via the release layer and the adhesive layer by pressing partial regions of the support body toward the substrate under a reduced pressure environment after the overlapping; attaching the support body to the substrate under a reduced pressure environment, both of which are temporarily fixed together via the release layer and the adhesive layer; and prior to the overlapping, (i) both heating the substrate and the support body under an atmospheric pressure environment and heating the substrate and the support body under a reduced pressure environment or (ii) heating the substrate and the support body under a reduced pressure environment, wherein: the overlapping is performed under a reduced pressure environment adjusted to a pressure of 0.1 Pa or greater and 3000 Pa or less; and the substrate and the support body are heated under a reduced pressure environment of 3000 Pa or less.