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:
Oct. 12, 1993
Filed:
Dec. 05, 1991
Applicant:
Inventors:
Wade Sonnenberg, Hull, MA (US);
Gordon Fisher, Sudbury, MA (US);
Roger F Bernards, Wellesley, MA (US);
Patrick Houle, Framingham, MA (US);
Assignee:
Shipley Company Inc., Newton, MA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25D / ;
U.S. Cl.
CPC ...
205296 ; 205125 ; 205298 ; 106-126 ;
Abstract
Compositions and processes for electrolytic plating. The compositions are characterized by critical amounts of one or more brightening and leveling agents. The compositions are particularly useful for plating through hole walls of printed circuit boards, including through holes having an aspect ratio equal or greater than about ten to one.