Patent ID: 8778751

Claim:
A method for producing a structure element on a surface of a semiconductor body, the method comprising: providing a semiconductor body having a surface; producing a cutout at the surface, the cutout extending from surface of the semiconductor body into the semiconductor body in a direction perpendicular to the surface, the cutout having a base, at least one sidewall and an edge at the intersection of the surface and the at least one sidewall; producing a first auxiliary layer on the surface of the semiconductor body and in the cutout so that the first auxiliary layer forms a well above the cutout, the well having a well base and at least one well sidewall which forms an angle α in the range of 20° to 80° with respect to the surface of the semiconductor body, the at least one well sidewall extending above the surface and across the edge such that a defined distance of the surface is covered by the at least one well sidewall; producing a second auxiliary layer within the well at the well base and at the at least one well sidewall, the first auxiliary layer and the second auxiliary layer forming a common surface at an identical surface level, the second auxiliary layer comprising a different material than the first auxiliary layer; and selectively removing regions of the first auxiliary layer which are not covered by the second auxiliary layer.