Patent ID: 6755984
Filing Date: 2004-06-29
Classification: B29C,B81C,B82Y,G03F,H05K,Y10S,Y10T

Abstract:
A method of micro-casting a silicon carbide nano-imprinting stamp, comprising:forming a release layer on a substrate layer; forming a mold layer on the release layer; patterning and then etching the mold layer to form a plurality of nano-sized mold cavities therein that extend to the release layer; forming a plurality of nano-sized features and a foundation layer connected therewith by filling in the nano-sized mold cavities with a material comprising silicon carbide; planarizing the foundation layer to form a substantially planar surface; forming a glue layer on the planar surface of the foundation layer; bonding a handling substrate with the glue layer by applying pressure and heat to the handling substrate and the substrate layer until the glue layer forms a mechanical bond with the foundation layer and the handling substrate; patterning and then etching a backside of the substrate layer to form a plurality of through holes that extend to the release layer; removing the substrate layer by introducing an etchant into the through holes so that the release layer is etched away thereby releasing the substrate layer; and etching the mold layer to remove the mold layer from the nano-sized features and the foundation layer.