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:
Aug. 17, 1999
Filed:
Jun. 13, 1997
Applicant:
Inventors:
Krishna G Sachdev, Hopewell Junction, NY (US);
Umar M Ahmad, Hopewell Junction, NY (US);
John U Knickerbocker, Hopewell Junction, NY (US);
Chon C Lei, Poughkeepsie, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B08B / ;
U.S. Cl.
CPC ...
134-13 ; 134 26 ; 134 30 ; 134 38 ; 134 40 ;
Abstract
This invention relates to the use of non-halogenated and non-aromatic cleaning solvents as environmentally safe replacement of perchloroethylene and xylene to remove rosin flux residue formed on electronic circuit device materials during solder interconnection process for assembly of electronic components.