Patent ID: 8192637
Filing Date: 2012-06-05
Classification: B29C,B82Y,G03F,G11B

Abstract:
1. A method of imprinting a microstructure comprising: providing a stamper comprising a pattern layer having a microstructure of the order of from micrometers to nanometers in one face of the pattern layer and a substrate supporting the pattern layer, wherein the pattern layer is supported on a round surface having at least one prescribed radius of curvature of the substrate, the center of the round surface protruding towards a rear face of the pattern layer, the substrate having a portion adjacent to the round surface, and a first alignment mark being on the portion of the substrate; providing an imprinting member having a deformable layer and a second alignment mark being on a portion of the imprinting member for aligning the pattern layer and the deformable layer; aligning the substrate and the imprinting member by optically detecting light reflected from the first alignment mark and the second alignment mark with a photosensor, wherein the first alignment mark and the second alignment mark are in an opposed relation; contacting the stamper with the imprinting member having the deformable layer to which the microstructure is imprinted; curing the deformable layer on the imprinting member; and separating the stamper from the cured deformable layer.