Granted Patent
Utility
US 6,784,115 · App. 09/216,078
Method of simultaneously implementing differential gate oxide thickness using fluorine bearing impurities
Inventors:
Cheng-Tsung Ni, Jacson Liu, Chih-Sheng Chang, Hudy-Jong Wu
Patented Case
View Patent ↗
Granted: Aug 31, 2004
Filed: Dec 18, 1998
Inventors
Cheng-Tsung Ni
Jacson Liu
Chih-Sheng Chang
Hudy-Jong Wu
Assignee (at issue)
MOSEL VITELIC INC.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.