Granted Patent
Utility
US 4,808,548 · App. 07/123,823
Method of making bipolar and MOS devices on same integrated circuit substrate
Inventors:
Mammen Thomas, Matthew Weinberg
Patented Case
View Patent ↗
Granted: Feb 28, 1989
Filed: Nov 23, 1987
Inventors
Mammen Thomas
Matthew Weinberg
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.