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. 01, 2008
Filed:
Jul. 08, 2002
Chien-pin Sherman Hsu, Basking Ridge, NJ (US);
Chien-Pin Sherman Hsu, Basking Ridge, NJ (US);
Mallinckrodt Baker, Inc., Phillipsburg, NJ (US);
Abstract
Ammonia-free cleaning compositions for cleaning microelectronic substrates, and particularly to such cleaning compositions useful with and having improved compatibility with microelectronic substrates characterized by sensitive porous, low-κ and high-κ dielectrics and copper metallization. Cleaning compositions for stripping photoresists, cleaning residues from plasma generated organic, organometallic and inorganic compounds, and cleaning residues from planarization processes. The cleaning composition contain one or more non-ammonium producing strong base containing non-nucleophilic, positively charged counter ions and one or more steric hindered amide solvents.