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. 19, 2005
Filed:
Dec. 05, 2002
Applicants:
Stephen Leslie Buchwalter, Hopewell Junction, NY (US);
Claudius Feger, Poughkeepsie, NY (US);
Gareth Hougham, Ossining, NY (US);
Nancy Labianca, Yalesville, CT (US);
Hosadurga Shobha, Yorktown Heights, NY (US);
Inventors:
Stephen Leslie Buchwalter, Hopewell Junction, NY (US);
Claudius Feger, Poughkeepsie, NY (US);
Gareth Hougham, Ossining, NY (US);
Nancy LaBianca, Yalesville, CT (US);
Hosadurga Shobha, Yorktown Heights, NY (US);
Assignee:
International Business Machines Corporation, Armonk, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C07D303/32 ; C08G004/00 ; C08K003/36 ; C08L059/00 ; C08L063/00 ;
U.S. Cl.
CPC ...
Abstract
Reworkable thermoset acid-cleavable acetal and ketal based epoxy oligomers can be B-staged into a tack free state. Compositions containing the epoxy oligomers are employed in a reworkable assembly such as a wafer-level underfilled microelectronic package.