Granted Patent
Utility
US 6,177,321 · App. 09/326,218
Semiconductor device and fabrication method thereof
Inventor:
Han Su Oh
Patented Case
View Patent ↗
Granted: Jan 23, 2001
Filed: Jun 3, 1999
Inventor
Han Su Oh
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.