Patent ID: 6329251
Filing Date: 2001-12-11
Classification: H01L

Abstract:
A method for fabricating a mircoelectronic device comprising:providing a silicon substrate;forming upon the silicon substrate a first series of structures having a first spacing which leaves exposed a first series of portions of the silicon substrate, the first series of structures being separated from a second series of structures also formed upon the silicon substrate, the second series of structures having a second spacing which leaves exposed a second series of comparatively wide portions of the silicon substrate;wherein the second spacing is wider than the first spacing;masking one of the first series of portions of the silicon substrate and the second series of portions of the silicon substrate using a mask;forming selectively upon the other of the first series of portions of the silicon substrate and the second series of portions of the silicon substrate a series of patterned silicon layers removing the mask;doping simultaneously the series of patterned silicon layers and the one of the first series of portions of the silicon substrate and the second series of portions of the silicon substrate which was masked.