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William A. Wojtczak

AC Advanced Technology & Materials Co.: 3 patents #12 of 81Top 15%
🗺 Texas: #342 of 8,709 inventorsTop 4%
Overall (2003): #11,503 of 273,478Top 5%
4
Patents 2003

Issued Patents 2003

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6660700 Formulations including a 1,3-dicarbonyl compound chelating agent and copper corrosion inhibiting agents for stripping residues from semiconductor substrates containing copper structures Ma. Fatima Seijo, David Bernhard, Long Nguyen 2003-12-09
6599870 Boric acid containing compositions for stripping residues from semiconductor substrates George Guan, Long Nguyen 2003-07-29
6566315 Formulations including a 1,3-dicarbonyl compound chelating agent and copper corrosion inhibiting agents for stripping residues from semiconductor substrates containing copper structures Ma. Fatima Seijo, Dave Bernhard, Long Nguyen 2003-05-20
6527819 Polishing slurries for copper and associated materials Thomas H. Baum, Long Nguyen, Cary Regulski 2003-03-04