Granted Patent
Utility
US 6,803,308 · App. 10/704,966
Method of forming a dual damascene pattern in a semiconductor device
Inventor:
Sang Woo Nam
Patented Case
View Patent ↗
Granted: Oct 12, 2004
Filed: Nov 12, 2003
Inventor
Sang Woo Nam
Assignee (at issue)
Dongbu Electronics, 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.