Patent ID: 8252636

Claim:
Method of manufacturing at least one nanowire on a supporting substrate, the nanowire being parallel to said supporting substrate, the method comprising: a step of formation on the supporting substrate of a structure comprising a bar of length L wire and two regions, a first end of the bar being secured to one of the two regions and a second end of the bar being secured to the other region, the width of the bar being less than the width of the regions, a step of subjection of the bar to annealing under gaseous atmosphere in order to transform the bar into a nanowire of radius r 0 , the annealing being carried under conditions allowing formation of at least one necking occurring on the nanowire during the transformation of the bar into a nanowire, the two regions being uncovered during the step of subjection, determining the dimensions of the bar prior to the bar being formed on the substrate from the ratio L wire /r 0 , this ratio being less than 6 if a single necking is desired, this ratio being greater than 6 if a double necking is desired.