Granted Patent
Utility
US 6,110,799 · App. 08/885,879
Trench contact process
Inventor:
Qin Huang
Patented Case
View Patent ↗
Granted: Aug 29, 2000
Filed: Jun 30, 1997
Inventor
Qin Huang
Assignee (at issue)
Intersil Corporation
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.