Granted Patent
Utility
US 6,444,918 · App. 09/892,995
Interconnection structure of semiconductor element
Inventor:
Eiichi Umemura
Patented Case
View Patent ↗
Granted: Sep 3, 2002
Filed: Jun 28, 2001
Inventor
Eiichi Umemura
Assignee (at issue)
OKI ELECTRIC INDUSTRY 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.