Granted Patent
Utility
US 6,759,317 · App. 09/910,824
Method of manufacturing semiconductor device having passivation film and buffer coating film
Inventors:
Hiroshi Tobimatsu, Yuuki Kamiura, Seiji Okura, Mahito Sawada
Patented Case
View Patent ↗
Granted: Jul 6, 2004
Filed: Jul 24, 2001
Inventors
Hiroshi Tobimatsu
Yuuki Kamiura
Seiji Okura
Mahito Sawada
Assignee (at issue)
Renesas Technology 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.