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. 08, 2003
Filed:
Aug. 09, 2001
Applicant:
Inventors:
Chin-Ho Lee, Lyndhurst, OH (US);
Thomas J. Ameen, Mentor, OH (US);
John P. Callahan, Mentor, OH (US);
Assignee:
Gould Electronics Inc., Eastlake, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25D 7/06 ;
U.S. Cl.
CPC ...
C25D 7/06 ;
Abstract
A composite for use in forming a multi-layer printed circuit board, comprised of an INVAR® sheet having a thickness of between 0.5 mil and 5 mil; and a layer of electrodeposited copper on at least one side thereof. The copper has a thickness of between 1&mgr; and 50&mgr;, wherein the composite has a thermal coefficient of expansion (TCE) of about 2.8 to 6.0 ppm at temperatures between 0° F. and 200° F.