Granted Patent
Utility
US 6,348,708 · App. 08/675,692
Semiconductor device utilizing a rugged tungsten film
Inventors:
Young Jong Lee, Bok Won Cho
Patented Case
View Patent ↗
Granted: Feb 19, 2002
Filed: Jul 3, 1996
Inventors
Young Jong Lee
Bok Won Cho
Assignee (at issue)
LG Semicon Co., Ltd.
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.