Granted Patent
Utility
US 6,664,574 · App. 09/945,683
Heterojunction semiconductor device and method of manufacturing
Inventors:
Misbahul Azam, Gary H. Loechelt, Julio C. Costa
Patented Case
View Patent ↗
Granted: Dec 16, 2003
Filed: Sep 5, 2001
Inventors
Misbahul Azam
Gary H. Loechelt
Julio C. Costa
Assignee (at issue)
SEMICONDUCTOR COMPONENTS INDUSTRIES, LLC
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.