Granted Patent
Utility
US 4,253,111 · App. 05/945,710
Apparatus for bonding leads to semiconductor chips
Inventors:
Ernest J. Funk, Russell Union, Margaret M. Pratt
Patented Case
View Patent ↗
Granted: Feb 24, 1981
Filed: Sep 25, 1978
Inventors
Ernest J. Funk
Russell Union
Margaret M. Pratt
Assignee (at issue)
GCA 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.