Granted Patent
Utility
US 5,972,749 · App. 09/002,783
Method for preventing P1 punchthrough
Inventors:
John Jianshi Wang, Yuesong He, Kent Kuohua Chang
Patented Case
View Patent ↗
Granted: Oct 26, 1999
Filed: Jan 5, 1998
Inventors
John Jianshi Wang
Yuesong He
Kent Kuohua Chang
Assignee (at issue)
Advanced Micro Devices, 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.