Granted Patent
Utility
US 6,555,454 · App. 09/742,170
Semiconductor memory device incorporating therein ruthenium electrode and method for the manufacture thereof
Inventor:
Sung Eon Park
Patented Case
View Patent ↗
Granted: Apr 29, 2003
Filed: Dec 19, 2000
Inventor
Sung Eon Park
Assignee (at issue)
SK hynix Inc.
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.