Granted Patent
Utility
US 6,087,675 · App. 09/069,543
Semiconductor device with an insulation film having emitter contact windows filled with polysilicon film
Inventor:
Takasuke Hashimoto
Patented Case
View Patent ↗
Granted: Jul 11, 2000
Filed: Apr 30, 1998
Inventor
Takasuke Hashimoto
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.