Fabrication of electronic devices

摘要

A method for forming pores within a central area of a semi-conductive or conductive surface (114) includes forming on a substrate (112) a semi-conductive or conductive surface (114) such that, upon application of an electric field at the semi-conductive or conductive surface (114), an intensity of the electric field at a central area of the surface is at least as great as an intensity of the electric field at a perimeter of the surface. The method includes anodizing the semi-conductive or conductive surface (114) by generating the electric field at the semi-conductive or conductive surface (114) to form a porous region within the semi-conductive or conductive surface (114). <IMAGE>