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:
May. 26, 2020

Filed:

Apr. 01, 2019
Applicant:

Micron Technology, Inc., Boise, ID (US);

Inventors:

Hongbin Zhu, Boise, ID (US);

Gordon A. Haller, Boise, ID (US);

Charles H. Dennison, San Jose, CA (US);

Anish A. Khandekar, Boise, ID (US);

Brett D. Lowe, Boise, ID (US);

Lining He, Singapore, SG;

Brian Cleereman, Boise, ID (US);

Assignee:

Micron Technology, Inc., Boise, ID (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/115 (2017.01); H01L 27/11556 (2017.01); H01L 27/11582 (2017.01); H01L 27/11524 (2017.01); H01L 27/1157 (2017.01);
U.S. Cl.
CPC ...
H01L 27/11556 (2013.01); H01L 27/1157 (2013.01); H01L 27/11524 (2013.01); H01L 27/11582 (2013.01);
Abstract

Some embodiments include a method of forming vertically-stacked memory cells. An opening is formed through a stack of alternating insulative and conductive levels. Cavities are formed to extend into the conductive levels along sidewalls of the opening. At least one of the cavities is formed to be shallower than one or more others of the cavities. Charge-blocking dielectric and charge-storage structures are formed within the cavities. Some embodiments include an integrated structure having a stack of alternating insulative and conductive levels. Cavities extend into the conductive levels. At least one of the cavities is shallower than one or more others of the cavities by at least about 2 nanometers. Charge-blocking dielectric is within the cavities. Charge-storage structures are within the cavities.


Find Patent Forward Citations

Loading…