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:
Jan. 06, 2009
Filed:
Mar. 29, 2005
Yutaka Hayashi, Ibaraki, JP;
Shoji Nakanishi, Chiba, JP;
Sumitaka Goto, Chiba, JP;
Seiko Instruments Inc., , JP;
Other;
Abstract
A floating non-volatile memory has a substrate and source and drain regions disposed in a surface region of the substrate and spaced apart from each other with a channel forming semiconductor region disposed therebetween. A gate insulating film is disposed on the channel forming semiconductor region. A single crystal control region is disposed in the surface region of the substrate and is electrically separated from the channel forming semiconductor region. A control gate insulating film is disposed on the single crystal control region. A floating gate is disposed on the control gate insulating film and is capacitively coupled with the single crystal control region. A chemical-vapor-deposited shield insulating film is formed in a gas atmosphere charge-balanced on the floating gate. A shield conductive film is disposed on the chemical-vapor-deposited shield insulating film and capacitively coupled with the floating gate.