Patent ID: 7588953
Filing Date: 2009-09-15
Classification: H01L,Y10T

Abstract:
1. A method of fabricating a porous aluminum oxide (Al 2 O 3 ) mold having a sub-micron structure, comprising steps of: (a1) obtaining an aluminum pre-mold structure through annealing aluminum foil; (a2) cleansing said aluminum pre-mold structure and polishing a surface of said aluminum structure by electrolytic polishing; (a3) anodizing said aluminum mold and cleansing said aluminum pre-mold structure by using a deionized water; (a4) fast-drying said aluminum pre-mold structure by using ethanol and forming an oxidized layer; and (a5) partially etching said oxidized layer by using a phosphoric acid after said aluminum pre-mold structure being cleansed by using a deionized water, and thus obtaining a porous aluminum oxide mold having a sub-micron structure after drying said aluminum pre-mold structure in the air.