Pellicle membrane, pellicle, membrane, graphene sheet, and method for producing the graphene sheet

Patent metadata

Field	Value
Publication number	US-12510820-B2
Application number	US-202217894329-A
Country	US
Kind code	B2
Filing date	Aug 24, 2022
Priority date	Feb 27, 2020
Publication date	Dec 30, 2025
Grant date	Dec 30, 2025

Abstract

A technique that enables production of pellicle membranes that are better resistant to breakage when subjected to force exerted thereon in the thickness direction thereof and that have high transmittance to light. A pellicle membrane of the present invention includes a plurality of laminated layers, where at least one of the layers is provided with at least one hole having a width or diameter of 10 nm to 500 nm.

First claim

What is claimed is:

1 . A pellicle membrane, comprising:
a plurality of laminated layers, each laminated layer of the plurality of laminated layers has a plurality of identical holes, each having a width or diameter of 10 nm to 500 nm, wherein the holes of the plurality of laminated layers do not form a through hole extending through each layer of the plurality of the laminated layers.

2 . The pellicle membrane of claim 1 , wherein each of the plurality of laminated layers comprises a material selected from the group consisting of graphene, carbon nanotube, polysilicon, and silicon nitride.

3 . The pellicle membrane of claim 1 , wherein each of the plurality of laminated layers comprises one or more materials that include one or more metal elements selected from the group consisting of zirconium, niobium, molybdenum, tantalum, hafnium, scandium, titanium, vanadium, and chromium.

4 . The pellicle membrane of claim 1 , wherein the width or diameter of 300 nm or less.

5 . The pellicle membrane of claim 1 , further comprising a hole-free layer provided with no holes, the hole-free layer is laminated to the plurality of laminated layers.

6 . The pellicle membrane of claim 5 , wherein:
the hole-free layer is an outermost layer of the pellicle membrane.

7 . The pellicle membrane of claim 1 , wherein each the plurality of laminated layers is a graphene sheet.

8 . The pellicle membrane of claim 1 , wherein the pellicle membrane has a thickness of 200 nm or less.

9 . A pellicle, comprising:
the pellicle membrane of claim 1 ; and a frame supporting the pellicle membrane.

10 . A pellicle membrane, comprising:
a plurality of laminated layers, each laminated layer of the plurality of laminated layers has a plurality of identical holes, wherein the holes of the plurality of laminated layers do not form a through hole extending through each layer of the plurality of the laminated layers.

11 . A pellicle membrane, comprising:
a plurality of laminated layers, each laminated layer of the plurality of laminated layers has a plurality of identical holes, wherein the holes of the plurality of laminated layers do not form a through hole extending through each layer of the plurality of the laminated layers, wherein: each laminated layer of said plurality comprises a material selected from the group consisting of graphene and carbon nanotube.

Assignees

• Toppan Inc

Inventors

• Takada Naoya
• Seki Kazunori
• Kodera Yutaka

Classifications

• C01B2204/26

  Mechanical properties · CPC title

• C01B2204/04

  Specific amount of layers or specific thickness · CPC title

• C01B2204/02

  Single layer graphene · CPC title

• B32B9/04

  comprising such {particular} substance as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a glass layer B32B17/06; layered products with at least two ceramic layers composed mainly of ceramic B32B18/00)} · CPC title

• B32B9/007

  comprising carbon, e.g. graphite, composite carbon · CPC title