Patent ID: 6521511
Filing Date: 2003-02-18
Classification: B23K,G02F,H01L

Abstract:
A device transfer method comprising:a first step of forming a first separation layer on a substrate; a second step of forming an object-of-transfer layer containing the device on said first separation layer; a third step of forming a second separation layer on said object-of-transfer layer; a fourth step of attaching a primary destination-of-transfer part to said second separation layer; a fifth step of irradiating said first separation layer with light to cause exfoliation in an inner-layer and/or interface of said first separation layer, and then removing said substrate from said object-of-transfer layer while retaining said first separation layer on said object-of-transfer layer using said first separation layer as a boundary; a sixth step of removing said first separation layer from said said object-of-transfer layer; a seventh step of attaching a secondary destination-of-transfer part to the bottom of said object-of-transfer layer; and an eighth step of removing said primary destination-of-transfer part and said second separation layer from said object-of-transfer layer using said second separation layer as a boundary, whereby said object-of-transfer layer containing said device is transferred to said secondary destination-of-transfer part.