Patent ID: 8067299
Filing Date: 2011-11-29
Classification: B82B,B82Y,H01L,Y10S

Abstract:
1. A method of fabricating a semiconductor device, comprising: (a) providing a semiconductor substrate; (b) growing from a first surface of the substrate a semiconductor nanowire protruding from said first surface of the substrate; and (c) epitaxially growing on the semiconductor nanowire in axial and radial directions with respect to the semiconductor nanowire a semiconductor volume element that is epitaxially connected to the semiconductor nanowire, wherein the semiconductor nanowire and the volume element form a funnel structure protruding from the first surface of the substrate, wherein the semiconductor nanoelement is oriented upstanding from a substrate and a difference between a diameter of the semiconductor volume element and a diameter of the semiconductor nanoelement is in a range of 300 nm to 500 nm.