Granted Patent
Utility
US 6,693,040 · App. 10/119,809
Method for cleaning the contact area of a metal line
Inventor:
Dong Joon Kim
Patented Case
View Patent ↗
Granted: Feb 17, 2004
Filed: Apr 11, 2002
Inventor
Dong Joon Kim
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.