Granted Patent
Utility
US 6,262,467 · App. 09/410,613
Etch barrier structure of a semiconductor device and method for fabricating the same
Inventor:
Dae Hee Hahn
Patented Case
View Patent ↗
Granted: Jul 17, 2001
Filed: Oct 1, 1999
Inventor
Dae Hee Hahn
Assignee (at issue)
Hyundai Electronics Industries 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.