Granted Patent
Utility
US 6,831,346 · App. 09/849,047
Buried layer substrate isolation in integrated circuits
Inventors:
Gabriel Li, Kenelm G. D. Murray, Jose Arreola, Shahin Sharifzadeh, K. Nirmal Ratnakumar
Patented Case
View Patent ↗
Granted: Dec 14, 2004
Filed: May 4, 2001
Inventors
Gabriel Li
Kenelm G. D. Murray
Jose Arreola
Shahin Sharifzadeh
K. Nirmal Ratnakumar
Assignee (at issue)
Cypress 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.