Granted Patent
Utility
US 6,232,177 · App. 09/415,564
Method for increasing surface area of a bottom electrode for a DRAM
Inventors:
Ting-Chang Chang, Po-Tsun Liu
Patented Case
View Patent ↗
Granted: May 15, 2001
Filed: Oct 8, 1999
Inventors
Ting-Chang Chang
Po-Tsun Liu
Assignee (at issue)
WINBOND ELECTRONICS CORP.
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.