Substrate fabrication by bonding a useful element of a first material to a support of a second material with the deposition of an interposed amorphous layer

摘要

Fabrication of substrates comprises an operation for bonding a useful element (10) of a first material on one face of a support (2) of a second material, then depositing an electroconducting amorphous material (6) on the face of the support destined to receive the element (10) or on the face of the useful element (10). The second material is less noble than the first material. The substrates are produced with one or more monocrystalline layers on a polycrystalline support and may then be of the same material. An Independent claim is included for a substrate made up of a useful element and a support made up of a polycrystalline material and incorporating an electroconducting amorphous material between the useful element and the support.