Patent ID: 6326262
Filing Date: 2001-12-04
Classification: H01L

Abstract:
A method for fabricating an epitaxial layer having the steps of:providing a substrate 105, on whose substrate surface 106 there are arranged, at least partly uncovered, a monocrystalline region 107 and at least one electrically insulating region 108 adjoining the latter, the electrically insulating region 108 being at least partly surrounded by the monocrystalline region 107;growing an epitaxial layer 245 on the monocrystalline region 107 of the substrate surface 106, the electrically insulating region 108 being at least partly overgrown laterally by the epitaxial layer 245 and an epitaxial closing joint 275 forming above the electrically insulating region 108 on account of the overgrowth;at least partly removing the epitaxial layer 245 above the electrically insulating region 108, with the result that the epitaxial closing joint 275 is at least partly removed as well in the process.