Granted Patent
Utility
US 5,783,839 · App. 08/821,926
Semiconductor device having a GESC layer between silicon layers with triangular Ge concentration
Inventors:
Takenori Morikawa, Tsutomu Tashiro
Patented Case
View Patent ↗
Granted: Jul 21, 1998
Filed: Mar 21, 1997
Inventors
Takenori Morikawa
Tsutomu Tashiro
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.