IP Library Granted Patent US 8,962,081
Granted Patent B2
US 8,962,081 · App. 13/051,883 · Granted Feb 24, 2015

Template forming method

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Quick Facts
Patent No.
US 8,962,081
App. No.
13/051,883
Granted
Feb 24, 2015
Kind
B2
Abstract

According to one embodiment, there is provided a template forming method that transfers a pattern from a first template to a to-be-processed substrate and subjects the to-be-processed substrate to a processing process to form a second template by using an imprinting method, includes forming a first resist film on a pattern forming region on the to-be-processed substrate, selectively forming a second resist film on a mark forming region on the to-be-processed substrate, transferring a concavo-convex pattern formed on the first template to the first resist film, and processing the to-be-processed substrate with the first resist film to which the concavo-convex pattern is transferred and the second resist film used as a mask.

Claims (15)

1. A template forming method that transfers a pattern from a first template to a substrate and subjects the substrate to a processing process to form a second template by using an imprinting method, comprising:

forming a first resist film on a pattern forming region on the substrate,

selectively forming a second resist film corresponding to an individual identification mark on a mark forming region on the substrate,

transferring a concavo-convex pattern formed on the first template to the first resist film, the first template excluding a pattern corresponding to the individual identification mark, and

processing the substrate with the first resist film to which the concavo-convex pattern is transferred and the second resist film corresponding to the individual identification mark used as a mask.

2. The method according to claim 1 , wherein forming the first resisting film includes coating a first resist on a pattern forming region on the substrate that corresponds to a pattern region on which a concavo-convex pattern is formed on the first template, selectively forming the second resist film includes selectively coating a second resist to form a desired pattern on a mark forming region on the substrate that corresponds to a peripheral region on which a pattern on the first template is not formed, the first template is closely adhered to the substrate on which the first and second resists are coated to penetrate the first resist coated on the substrate into concave portions of the first template, the first and second resists are cured after the first resist is penetrated into the concave portions of the first template, and the first template is separated from the substrate and first resist after the first and second resists are cured for formation of the first resist film, formation of the second resist film and transfer of the concavo-convex pattern.

3. The method according to claim 2 , wherein the first and second resists are formed of the same material.

4. The method according to claim 3 , wherein the first and second resists are photo-curable resin.

5. The method according to claim 3 , wherein the first and second resists are thermosetting resin.

6. The method according to claim 2 , wherein concave portions are formed in a region of the first template corresponding to the pattern region.

7. The method according to claim 1 , wherein the first resist is coated on a pattern forming region on the substrate that corresponds to a pattern region on which a concavo-convex pattern is formed on the first template, the first template is closely adhered to the substrate to penetrate the first resist coated on the substrate into concave portions of the first template, the first resist that is penetrated into the concave portions of the first template is cured, the first template is separated from the substrate and the first resist after the first resist is cured, the second resist is selectively coated in a desired pattern shape on a mark forming region on the substrate that corresponds to a region on which a pattern on the first template is not formed, and the second resist coated is cured for formation of the first resist film, formation of the second resist film and transfer of the concavo-convex pattern.

8. The method according to claim 7 , wherein the first and second resists are formed of the same material.

9. The method according to claim 8 , wherein the first and second resists are photo-curable resin.

10. The method according to claim 8 , wherein the first and second resists are thermosetting resin.

11. The method according to claim 7 , wherein concave portions are formed in a region of the first template corresponding to the pattern region.

Assignments (2)
SECURITY INTEREST Recorded Sep 14, 2021
From: GCX CORPORATION
To: PNC BANK, NATIONAL ASSOCIATION
Reel/Frame 057471/0001 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 12, 2011
From: SAITO, MASATO
To: KABUSHIKI KAISHA TOSHIBA
Reel/Frame 026266/0488 →