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:
Jul. 21, 1998
Filed:
Apr. 22, 1997
Applicant:
Inventors:
Pietro Luigi Cavallotti, Milan, IT;
Vittorio Sirtori, Milan, IT;
Giovanni Zangari, Pittsburgh, PA (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25D / ;
U.S. Cl.
CPC ...
205226 ; 205252 ; 205253 ;
Abstract
An electrodeposition bath for depositing a Sn alloy onto a Cu substrate containing a Zn salt. This bath is particularly useful for Pb free alloy, such as a Sn--Bi alloy. The presence of Zn in the elctrodeposition bath greatly influence the bath behaviour and the characteristics of the deposited alloy, even if no Zn is codeposited on the Cu substrate.