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. 23, 1997
Filed:
Apr. 27, 1995
Applicant:
Inventors:
John Matthew Lauffer, Waverly, NY (US);
David John Russell, Apalachin, NY (US);
James Jens Hansen, Huntington, IN (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05K / ;
U.S. Cl.
CPC ...
174262 ; 174264 ; 361767 ;
Abstract
A metal carrier has a dielectric material with a thickness of less than 0.004 inch and electrical voltage insulation characteristics of at least 2500 volts formed on a surface. A donut configured land defines at least one via or opening for removing dielectric material selectively. Reflow solder is used to form electrical interconnections, and the vias provide thermal dissipation sufficient to conform to safety requirements.