Patent ID: 9691632
Date: 2017-06-27
CPC Classifications: H01L

Claim:
1. An epitaxial wafer, comprising a silicon substrate wafer having a first side and a second side, and an elemental silicon epitaxial layer deposited on the first side of the silicon substrate wafer, and optionally one or more additional epitaxial layers on top of the elemental silicon epitaxial layer, the elemental silicon epitaxial layer being doped with nitrogen at a concentration of more than 1×10 16 atoms/cm 3 and 1×10 20 atoms/cm 3 or less, or at least one of the one or more additional epitaxial layers being doped with nitrogen at a concentration of more than 1×10 16 atoms/cm 3 and 1×10 20 atoms/cm 3 or less, or the elemental silicon epitaxial layer and at least one of the one or more additional epitaxial layers being doped with nitrogen at a concentration of more than 1×10 16 atoms/cm 3 and 1×10 20 atoms/cm 3 or less.