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:
Sep. 11, 1979
Filed:
Nov. 02, 1978
William M Beckenbaugh, East Amwell Township, Hunterdon County, NJ (US);
Kim L Morton, Delaware Township, Hunterdon County, NJ (US);
Western Electric Company, Inc., New York, NY (US);
Abstract
A method of depositing a stress-free electroless copper deposit is disclosed. The method comprises contacting a catalyzed surface with a solution comprising a source of cupric ions; a reducing agent for the cupric ions; a complexing agent for the solution selected from (a) ethylenediaminetetraacetic acid, (b) a salt of (a), (c) a modified ethylenediamine acetic acid, (d) a salt of (c), and (e) a mixture of at least two of the foregoing complexing agents; a stabilizer for the solution comprising a mercury compound; and an accelerator for the solution comprising a water-soluble compound containing a cyanide radical (CN.sup.-) complexed with a metal selected from Group VIII of the Periodic Table of the Elements.