Granted Patent
Utility
US 6,818,472 · App. 10/372,421
Ball grid array package
Inventors:
Chun Ho Fan, Joseph Martin, Ming Wang Sze, Tak Sang Yeung
Patented Case
View Patent ↗
Granted: Nov 16, 2004
Filed: Feb 24, 2003
Inventors
Chun Ho Fan
Joseph Martin
Ming Wang Sze
Tak Sang Yeung
Assignee (at issue)
A-SAT 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.