The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 04, 2010
Filed:
Jun. 03, 2005
Robertus Theodorus Fransiscus Van Schaijk, Leuven, BE;
Michiel Jos Van Duuren, Leuven, BE;
Robertus Theodorus Fransiscus Van Schaijk, Leuven, BE;
Michiel Jos Van Duuren, Leuven, BE;
NXP B.V., Eindhoven, NL;
Abstract
The present invention provides a non-volatile memory device and a method for manufacturing such a device. The device comprises a floating gate (), a control gate () and a separate erase gate (). The erase gate () is provided in or on isolation zones () provided in the substrate (). Because of that, the erase gates () do not add to the cell size. The capacitance between the erase gate () and the floating gate () is small compared with the capacitance between the control gate () and the floating gate (), and the charged floating gate () is erased by Fowler-Nordheim tunneling through the oxide layer between the erase gate () and the floating gate ().