Granted Patent
Utility
US 6,815,311 · App. 10/098,524
Method for fabricating semiconductor memory device
Inventors:
Ji Suk Hong, Chul Chan Choi
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: Mar 18, 2002
Inventors
Ji Suk Hong
Chul Chan Choi
Assignee (at issue)
SK hynix Inc.
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.