Granted Patent
Utility
US 4,670,091 · App. 06/843,328
Process for forming vias on integrated circuits
Inventors:
Michael E. Thomas, Robert L. Brown
Patented Case
View Patent ↗
Granted: Jun 2, 1987
Filed: Mar 24, 1986
Inventors
Michael E. Thomas
Robert L. Brown
Assignee (at issue)
FAIRCHILD SEMICONDUCTOR 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.