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. 01, 2005
Filed:
Apr. 30, 2002
Robert A. Schetty, Iii, Ft. Salonga, NY (US);
Winnie Ruth Vickers, Lynbrook, NY (US);
Robert A. Schetty, III, Ft. Salonga, NY (US);
Winnie Ruth Vickers, Lynbrook, NY (US);
Technic, Inc., Plainview, NY (US);
Abstract
The present invention relates to a method for reducing tin whisker formation in tin deposits by plating on an underlying metal tin deposits which are predominantly in a predetermined crystal orientation that essentially matches that of the underlying metal in order to inhibit tin whisker growth. The most preferred crystal orientation is one that is the same as that of the underlying metal. The deposit preferably contains at least 95% tin and optionally at least one alloying element of silver, bismuth, copper or zinc in an amount of 5% or less. Advantageously, the tin deposits are provided during electroplating from a specially formulated plating solution.