Granted Patent
Utility
US 6,437,401 · App. 09/824,957
Structure and method for improved isolation in trench storage cells
Inventors:
Jack A. Mandelman, Stephan Kudelka, Andreas Knorr, Stephen Rahn, Helmut Tews, Michael Wise
Patented Case
View Patent ↗
Granted: Aug 20, 2002
Filed: Apr 3, 2001
Inventors
Jack A. Mandelman
Stephan Kudelka
Andreas Knorr
Stephen Rahn
Helmut Tews
Michael Wise
Assignees (at issue)
Infineon Technologies AG
International Business Machines 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.