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:
Mar. 29, 1994
Filed:
Nov. 13, 1992
Bruce M Eliash, Los Angeles, CA (US);
Hughes Aircraft Company, Los Angeles, CA (US);
Abstract
A method of selectively monitoring particular trace constituents within a plating bath containing multiple trace constituents. The method provides improved selectivity over known voltammetric techniques for certain plating baths and trace constituents. The method involves applying a brief voltammetric plating signal to a pretreated electrode positioned within the plating bath solution, applying a rapid stripping signal to the plated electrode, and monitoring the resultant stripping signal response current. The characteristics of the stripping signal response current indicate the particular trace constituent concentration level. The method complements and is easily integrated with known voltammetric techniques and equipment, and thus improves the efficiency and versatility of existing plating bath analysis systems.