Patent ID: 6579738
Filing Date: 2003-06-17
Classification: G03F,H01L,Y10S

Abstract:
A method of aligning at least on buried conductor pattern in a monocrystalline substrate, said method comprising the steps of:forming at least one alignment mark in association with said monocrystalline substrate; forming a plurality of cylindrical holes in said monocrystalline substrate, said cylindrical holes being aligned with respect to said at least one alignment mark; annealing said monocrystalline substrate to form at least one empty-spaced pattern within, and surrounded by, said monocrystalline substrate and below a surface of said monocrystalline substrate; forming at least one opening in said monocrystalline substrate which communicates with a respective empty-spaced pattern; and forming a conductive material in said empty-spaced pattern to form said at least one buried conductor pattern.