IP Library Granted Patent US 11,294,276
Granted Patent B2
US 11,294,276 · App. 15/695,847 · Granted Apr 5, 2022

Template manufacturing method and template base member

Inventor: Shingo Kanamitsu (Kanagawa, JP)
Assignee: KIOXIA CORPORATION
G03F7/0002B29C33/301B29C33/424B29C43/146B29C59/16G03F7/0035G03F7/0043
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Quick Facts
Patent No.
US 11,294,276
App. No.
15/695,847
Granted
Apr 5, 2022
Kind
B2
Abstract

A template manufacturing method includes preparing a structure including a first substrate and a stacked body that is provided on the first substrate, the stacked body including a first lower layer including a first material, a first upper layer provided on the first lower layer including a second material different from the first material, and a first cover layer provided on a first cover region of the first upper layer and including a third material different from the second material. The method further includes forming a first resist layer on a portion of the first cover layer and on a first portion of the first upper layer, and exposing a second portion of the upper layer. The method yet further includes removing the second portion of the first upper layer using the first cover layer and the first resist layer as a mask.

Claims (9)

1. A template manufacturing method comprising:

providing a first template, on a first substrate, that comprises a plurality of stacked films, each of the plurality of stacked films comprising a lower layer comprising a first material and an upper layer comprising a second material different from the first material, a first surface of the first template comprising a step structure in which one or more steps are defined by the plurality of stacked films;

patterning a resin layer to form a mask, wherein the patterning the resin layer comprises disposing a resin liquid film between the first template and a second substrate;

solidifying the resin liquid film while the first surface of the first template is in contact with the resin liquid film to pattern the resin layer defining a resin layer surface shape that corresponds to a shape of the step structure, wherein the solidifying the resin liquid film comprises radiating an ultraviolet ray to the resin liquid film through the second substrate; and

forming a second template, using the mask arranged on a surface of the second substrate.

2. The template manufacturing method according to claim 1 , wherein the first material comprises a metal comprising chromium.

3. The template manufacturing method according to claim 2 , wherein the first material comprises a chromium oxide.

4. The template manufacturing method according to claim 3 , wherein the second material comprises a silicon oxide or quartz.

5. The template manufacturing method according to claim 1 , wherein the first material comprises carbon.

Assignments (4)
CHANGE OF NAME Recorded Jan 17, 2022
From: K.K. PANGEA
To: TOSHIBA MEMORY CORPORATION
Reel/Frame 058670/0930 →
CHANGE OF NAME Recorded Jan 17, 2022
From: TOSHIBA MEMORY CORPORATION
To: KIOXIA CORPORATION
Reel/Frame 058751/0266 →
MERGER Recorded Jan 17, 2022
From: TOSHIBA MEMORY CORPORATION
To: K.K. PANGEA
Reel/Frame 058751/0995 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 13, 2017
From: KANAMITSU, SHINGO
To: TOSHIBA MEMORY CORPORATION
Reel/Frame 043858/0978 →
Priority Claims (1)
JP JP2017-053318 · Mar 17, 2017 · national
Continuity (1)
Related Publication 20180267401A1 · Sep 20, 2018