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MAKING NANOCHANNELS AND NANOTUNNELS

  • US 20170253479A1
  • Filed: 02/27/2017
  • Published: 09/07/2017
  • Est. Priority Date: 03/03/2016
  • Status: Active Grant
First Claim
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1. A process for making a nanoduct, the process comprising:

  • disposing an etchant catalyst on a semiconductor substrate comprising a single crystal structure;

    heating the semiconductor substrate to an etching temperature;

    introducing an oxidant;

    contacting the semiconductor substrate with the oxidant in a presence of the etchant catalyst;

    anisotropically etching the semiconductor substrate by the etchant catalyst in a presence of the oxidant in an etch direction that is coincident along a crystallographic axis of the semiconductor substrate; and

    forming the nanoduct as the etchant catalyst propagates along a surface of the semiconductor substrate during anisotropically etching the semiconductor substrate, the nanoduct being crystallographically aligned with the crystallographic axis of the semiconductor substrate.

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