Granted Patent
Utility
US 6,680,540 · App. 09/799,533
Semiconductor device having cobalt alloy film with boron
Inventors:
Hiroshi Nakano, Takeyuki Itabashi, Haruo Akahoshi
Patented Case
View Patent ↗
Granted: Jan 20, 2004
Filed: Mar 7, 2001
Inventors
Hiroshi Nakano
Takeyuki Itabashi
Haruo Akahoshi
Assignee (at issue)
HITACHI, 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.