Granted Patent
Utility
US 6,380,049 · App. 09/610,403
Semiconductor substrate and method of manufacturing semiconductor device
Inventors:
Takehiko Hamada, Masayuki Hamada
Patented Case
View Patent ↗
Granted: Apr 30, 2002
Filed: Jul 5, 2000
Inventors
Takehiko Hamada
Masayuki Hamada
Assignee (at issue)
NEC 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.