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:
Mar. 21, 2023
Filed:
Jan. 20, 2020
Applicant:
Brewer Science, Inc., Rolla, MO (US);
Inventors:
Luke Prenger, Rolla, MO (US);
Arthur O. Southard, St. James, MO (US);
Qi Wu, Phoenix, AZ (US);
Xiao Liu, Rolla, MO (US);
Assignee:
Brewer Science, Inc., Rolla, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/683 (2006.01); C08G 73/02 (2006.01); H01L 21/56 (2006.01); B32B 43/00 (2006.01);
U.S. Cl.
CPC ...
H01L 21/6835 (2013.01); B32B 43/006 (2013.01); C08G 73/026 (2013.01); H01L 21/568 (2013.01); B32B 2457/00 (2013.01);
Abstract
Novel polyketanil-based compositions for use as a laser-releasable composition for temporary bonding and laser debonding processes are provided. The inventive compositions can be debonded using various UV lasers, at wavelengths from about 300 nm to about 360 nm, leaving behind little to no debris. The layers formed from these compositions possess good thermal stabilities and are resistant to common solvents used in semiconductor processing. The compositions can also be used as build-up layers for redistribution layer formation.