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:
Dec. 04, 2018

Filed:

Feb. 13, 2018
Applicant:

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

Inventors:

Jaydeb Goswami, Boise, ID (US);

Zailong Bian, Boise, ID (US);

Yushi Hu, Alexandria, VA (US);

Eric R. Blomiley, Boise, ID (US);

Jaydip Guha, Boise, ID (US);

Thomas Gehrke, Boise, ID (US);

Assignee:

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

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 27/108 (2006.01); H01L 29/423 (2006.01); H01L 29/08 (2006.01); H01L 29/49 (2006.01); H01L 23/532 (2006.01); H01L 23/528 (2006.01);
U.S. Cl.
CPC ...
H01L 27/10823 (2013.01); H01L 23/5283 (2013.01); H01L 23/53252 (2013.01); H01L 23/53261 (2013.01); H01L 23/53266 (2013.01); H01L 27/10876 (2013.01); H01L 27/10891 (2013.01); H01L 29/0847 (2013.01); H01L 29/4236 (2013.01); H01L 29/42376 (2013.01); H01L 29/4966 (2013.01);
Abstract

Some embodiments include a conductive structure which has a first conductive material having a work function of at least 4.5 eV, and a second conductive material over and directly against the first conductive material. The second conductive material has a work function of less than 4.5 eV, and is shaped as an upwardly-opening container. The conductive structure includes a third conductive material within the upwardly-opening container shape of the second conductive material and directly against the second conductive material. The third conductive material is a different composition relative to the second conductive material. Some embodiments include wordlines, and some embodiments include transistors.


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