Patent ID: 9222930
Filing Date: 2015-12-29
Classification: C12Q,C23C,C25D,G01N

Abstract:
1. A method of forming a nanodevice, the method comprising: filing a reservoir with a conductive fluid; forming a membrane to separate the reservoir in the nanodevice, the membrane including an electrode layer having a tunneling junction formed therein; and forming the membrane to have a nanopore formed through one or more other layers of the membrane such that the nanopore is aligned with the tunneling junction of the electrode layer; wherein the tunneling junction is formed in the electrode layer by: patterning the electrode layer with two boxes connected by a metal strip of the electrode layer, coating an electron beam resist on top of the electrode layer, opening a gap shaped window through the electron beam resist to make a portion of the metal strip visible through the gap shaped window of the electron beam resist, etching away the portion of the metal strip that was visible through the gap shaped window of the electron beam resist, and removing the electron beam resist resulting in the electrode layer having the tunneling junction where the portion of the metal strip was etched away; wherein when a voltage is applied to the electrode layer, a tunneling current is generated by a base in the tunneling junction to be measured as a current signature for distinguishing the base; and wherein when an organic coating is formed on an inside surface of the tunneling junction, transient bonds are formed between the electrode layer and the base.