Patent ID: 8513125

Claim:
A method for manufacturing a microelectronic device comprising on a same substrate, one or more nanowires based on a given semiconducting material and one or more nanowires based on another semiconducting material, the method comprising the steps of: a) forming on a substrate at least one first semiconducting block and at least one distinct second semiconducting block, said first block and said second block each comprising one or more bars based on a first semiconducting material and one or more other bars based on a second semiconducting material, said bars and other bars extending along a same direction which is parallel to said substrate; b) removing in said second semiconducting block, the one or more other bars based on said second semiconducting material, while the one or more bars and other bars of said first block are protected; c) oxidizing of the one or more bars based on said first semiconductor and belonging to said second block so as to form one or more nanowires surrounded by an oxide of the first semiconducting material, while the one or more bars and other bars of said first block are protected by an oxidation mask; d) removing said oxidation mask; e) removing the one or more bars based on said first semiconducting material in said first block while said nanowires based on said first semiconducting material are protected; and f) oxidizing the bars based on said second semiconducting material so as to form one or more other nanowires.