Granted Patent
Utility
US 5,717,643 · App. 08/715,069
Semiconductor memory device with testing function
Inventors:
Eiichi Iwanami, Toshio Wada
Patented Case
View Patent ↗
Granted: Feb 10, 1998
Filed: Sep 19, 1996
Inventors
Eiichi Iwanami
Toshio Wada
Assignee (at issue)
Nippon Steel Semiconductor Corporation
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.