Patent ID: 7615463
Filing Date: 2009-11-10
Classification: H01L

Abstract:
1. A method for fabricating thin layers containing microcomponents, the method comprising: a) providing a substrate substantially unpopulated by microcomponents; b) implanting at least one gaseous species in the substrate to form a plurality of linear gaseous implantation areas defined on a surface of the substrate, so as to create a plurality of buried weak areas near a gaseous implantation depth; c) fabricating microcomponents in a surface layer of the substrate delimited by the buried weak areas, wherein at least one of the microcomponents is fabricated at least partially in an area corresponding to a zone that was not implanted during step b), and wherein the implantation depth and the geometry of the gaseous implantation areas prevents the surface of the substrate from being degraded during fabricating the microcomponents; and d) detaching the surface layer from the remainder of the substrate and in the absence of further implantation steps between step c) and step d), wherein a sum of implantation doses corresponds to an average implantation dose that exceeds a dose necessary for defoliation of the surface layer.