The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 04, 2008
Filed:
Jan. 12, 2006
Richard N. Zare, Stanford, CA (US);
Oliver Trapp, Muelheim an der Ruhr, DE;
Richard N. Zare, Stanford, CA (US);
Oliver Trapp, Muelheim an der Ruhr, DE;
The Board of Trustees of the Leland Stanford Junior University, Palo Alto, CA (US);
Abstract
The present invention provides a method of coating an electrospray emitter with silver and then gold utilizing wet-coating processes. First, the electrospray emitter is immersed in a silver-containing liquid solution to coat the electrospray emitter in a layer of silver. Next, the silver-coated electrospray emitter is removed from the silver solution and rinsed with water. The silver-coated electrospray emitter is then annealed to stabilize the silver layer. Once the silver layer has been stabilized, the silver-coated electrospray emitter is immersed into a gold-containing liquid solution and a voltage is applied. This voltage serves to electrochemically deposit a gold layer onto the silver layer. The gold- and silver-coated electrospray emitter is then removed from the gold-containing liquid solution and rinsed with water and, preferably, with nitric acid.