Granted Patent
Utility
US 6,545,354 · App. 09/499,599
Semiconductor device having a barrier layer
Inventors:
Yutaki Aoki, Ichiro Mihara, Takeshi Wakabayashi, Katsumi Watanabe
Patented Case
View Patent ↗
Granted: Apr 8, 2003
Filed: Feb 7, 2000
Inventors
Yutaki Aoki
Ichiro Mihara
Takeshi Wakabayashi
Katsumi Watanabe
Assignee (at issue)
CASIO COMPUTER 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.