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.

Date of Patent:
Jul. 16, 2024

Filed:

Aug. 26, 2021
Applicant:

Kioxia Corporation, Tokyo, JP;

Inventor:

Hanae Ishihara, Yokkaichi Mie, JP;

Assignee:

KIOXIA CORPORATION, Tokyo, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/76 (2006.01); H10B 41/10 (2023.01); H10B 41/27 (2023.01); H10B 43/10 (2023.01); H10B 43/27 (2023.01);
U.S. Cl.
CPC ...
H10B 43/10 (2023.02); H10B 41/10 (2023.02); H10B 41/27 (2023.02); H10B 43/27 (2023.02);
Abstract

A device includes a first region including first semiconductor pillars extending through first conductive layers; a second region including second semiconductor pillars extending through second conductive layers; and a third region disposed between the first region and the second region and including insulator columns extending through third conductive layers. The third region includes a fourth region and a fifth region. In the fourth region, one third conductive layer electrically connects one first conductive layer and one second conductive layer to each other, and in the fifth region, one third conductive layer is connected to a contact plug. A first diameter of a first subset of the insulator columns provided in the fourth region is smaller than a second diameter of a second subset of the insulator columns provided in the fifth region.


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