Granted Patent
Utility
US 6,743,665 · App. 10/322,849
Method for forming isolation layer in semiconductor device
Inventor:
Cheol Soo Park
Patented Case
View Patent ↗
Granted: Jun 1, 2004
Filed: Dec 18, 2002
Inventor
Cheol Soo Park
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.