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:
Mar. 12, 2013
Filed:
Jun. 29, 2011
Taku Nishiyama, Kanagawa-ken, JP;
Tetsuya Yamamoto, Kanagawa-ken, JP;
Naohisa Okumura, Kanagawa-ken, JP;
Taku Nishiyama, Kanagawa-ken, JP;
Tetsuya Yamamoto, Kanagawa-ken, JP;
Naohisa Okumura, Kanagawa-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A semiconductor memory device includes: a wiring board including an element mounting portion and connection pads; a first element group including a plurality of semiconductor elements each having electrode pads arranged along one of outer sides of the semiconductor element, the plurality of semiconductor elements being layered stepwise on the element mounting portion of the wiring board in a way that pad arrangement sides of the semiconductor elements face in the same direction, and that the electrode pads are exposed; a second element group including a plurality of semiconductor elements each having electrode pads arranged along one of outer sides of the semiconductor element, the plurality of semiconductor elements being layered stepwise on the first element group in a way that pad arrangement sides of the semiconductor elements face in the same direction as that of the first element group, and that the electrode pads are exposed, the second element group being disposed to be offset from the first element group in an arrangement direction of the electrode pads;