Patent ID: 7943488
Filing Date: 2011-05-17
Classification: B41J,H01L

Abstract:
1. A method comprising: arranging a first bonding layer of a predetermined thickness on at least one of a first functional region and a second functional region bonded on a release layer, on a first substrate, and a region, to which the first functional region is to be transferred, on a second substrate, the release layer including a material whose decomposition or decrease in bonding strength occurs when irradiated with light; bonding the first functional region to the second substrate through the first bonding layer; irradiating the release layer with light with a light blocking member toward a region on the first substrate, other than a region on which the first functional region exists, being provided to separate the first substrate from the first functional region at the release layer; arranging a second bonding layer of a predetermined thickness on at least one of the second functional region on the first substrate, and a region, to which the second functional region is to be transferred, on the second substrate or a region, to which the second functional region is to be transferred, on a third substrate; bonding the second functional region to the second substrate or the third substrate through the second bonding layer; and subjecting the release layer to irradiation with light or change in temperature to separate the first substrate from the second functional region at the release layer.