Patent ID: 9620375
Date: 2017-04-11
CPC Classifications: B81C,G02B,H01L

Claim:
1. A production method comprising: providing a semiconductor substrate comprising a lattice plane that extends in a non-symmetrical manner and such that it is offset at an angle α from at least a first main surface region or a second main surface region of the semiconductor substrate, the first main surface region and the second main surface region extending parallel to each other; starting from the first main surface region, section-by-section anisotropic etching into the semiconductor substrate so as to achieve an etching structure which comprises, in a plane extending perpendicularly to the first main surface region of the semiconductor substrate, two different etching angles relative to the first main surface region; arranging a cover layer on the first main surface region of the semiconductor substrate, so that the cover layer is deformed to lie against the etching structure in at least some sections; and removing, section-by-section, the material of the semiconductor substrate starting from the second main surface region in the area of the deformed cover layer, so that the cover layer is exposed in at least one window region.