Patent ID: 9035474
Filing Date: 2015-05-19
Classification: H01L

Abstract:
1. A method for manufacturing a semiconductor substrate, comprising: providing a donor substrate and a semiconductor handle substrate; implanting ions into the semiconductor handle substrate and forming one or more alignment marks buried completely inside the semiconductor handle substrate by the implantation of the ions, the one or more alignment marks being configured to be detectable using electromagnetic radiation in the infrared region of the electromagnetic spectrum; forming a plurality of doped regions buried completely inside the semiconductor handle substrate, each doped region of the plurality of doped regions comprising one or more dopants; and attaching the donor substrate and the semiconductor handle substrate together by molecular bonding to obtain a donor-handle combination, at least one of the donor substrate and the handle substrate including a surface layer of an insulator such that the donor-handle combination forms a semiconductor-on-insulator semiconductor substrate.