Patent ID: 9390942
Filing Date: 2016-07-12
CPC Classification: H01L

Claim Text:
1. A method for reducing a concentration of particular surface contaminants from a surface of an insulating substrate of a semiconductor architecture prior to bonding with another layer, the insulating substrate being substantially non-diffusive to the particular surface contaminants, the method including: depositing a semiconductor layer on the surface of the insulating substrate surface having a first concentration of the particular surface contaminants; based on the depositing, diffusing a portion of the particular surface contaminants into the semiconductor layer; based on the diffusing, removing the portion of the particular substrate contaminants from the surface of the insulating substrate, and removing the deposited semiconductor layer from the surface of the insulating substrate, thereby obtaining a second concentration of the particular surface contaminants on the surface of the insulating substrate, the second concentration being substantially lower than the first concentration.