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:
Nov. 30, 2010
Filed:
Oct. 31, 2008
Satoshi Hikida, Nara, JP;
Satoshi Hikida, Nara, JP;
Sharp Kabushiki Kaisha, Osaka-shi, Osaka, JP;
Abstract
A semiconductor device comprises a first conductive film formed downward, perpendicular to a substrate, penetrating through a first insulating film, a second conductive film formed downward along an outer wall of a second insulating film, a third insulating film formed from the bottom of the second conductive film to the top of the substrate in an area sandwiched between the first and second insulating films, contacting with at least the bottom of the second conductive film and an outer wall on a side which does not contact with the second insulating film, and a first impurity diffusion area of a first conductivity type, a second impurity diffusion area of a second conductivity type, a third impurity diffusion area of the first conductivity type and a fourth impurity diffusion area of the first conductivity type in a high concentration layered within the area sandwiched between the first and third insulating films.