Granted Patent
Utility
US 5,939,641 · App. 09/127,707
System and method for empirically determining shrinkage stresses in a molded package and power module employing the same
Inventors:
Ashraf W. Lotfi, John D. Weld
Patented Case
View Patent ↗
Granted: Aug 17, 1999
Filed: Jul 31, 1998
Inventors
Ashraf W. Lotfi
John D. Weld
Assignee (at issue)
LUCENT TECHNOLOGIES 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.