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A method for manufacturing a mask plate with a micro-nano pattern structure and a nano-lithography method

A technology of graphic structure and production method, which is applied to the photolithographic process of the patterned surface, optics, and originals for photomechanical processing, etc., which can solve the problems of difficult preparation of beam pens, high production costs, and easy wear and tear.

Active Publication Date: 2021-01-22
SUN YAT SEN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, it still has disadvantages such as high production costs and the inability to achieve micro-nano patterns below 100nm
Beam pen lithography (BPL) and related technologies have also made the arbitrary shape of subwavelength structures widely used in various technical fields, but there are disadvantages such as difficult preparation of beam pens and easy loss.

Method used

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  • A method for manufacturing a mask plate with a micro-nano pattern structure and a nano-lithography method
  • A method for manufacturing a mask plate with a micro-nano pattern structure and a nano-lithography method
  • A method for manufacturing a mask plate with a micro-nano pattern structure and a nano-lithography method

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Experimental program
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Embodiment 1

[0038] Such as figure 1 As shown, the present invention provides a method for manufacturing a polymer mask with a micro-nano pattern structure, comprising the following steps:

[0039] S101: On the silicon wafer, using a patterning process to define patterns to be etched;

[0040] S102: After step S101 is completed, perform anisotropic etching on the surface of the silicon wafer, and prepare a micro-nano pattern arrangement structure of a specific shape and a specific size on the silicon wafer by controlling the etching process;

[0041] S103: After step S102 is completed, apply the polymer solution on the surface of the silicon chip with a micro-nano pattern arrangement structure of a specific shape, and transfer the micro-nano pattern structure on the surface of the silicon chip to the polymer;

[0042] S104: After step S103 is completed, take out the transferred polymer, and the polymer with micro-nano pattern structure is used as a photolithography mask for photolithograp...

Embodiment 2

[0059] In this embodiment, on a 4-inch large-size planar substrate 31 silicon wafer, based on a mask manufacturing method with a micro-nano pattern structure and a nano-lithography process, nanowires are prepared, wherein the polymer mask 34 has a nanometer The feature size of the planar part of the pattern is smaller than the light wavelength (L<λ), which can realize the total reflection lithography exposure technology.

[0060] Such as figure 1 As shown, on the silicon wafer 12, the photolithographic patterning process is used to define the pattern 11, and the silicon wafer 12 is anisotropically etched, and a micro-nano pattern structure of a specific shape is prepared on the silicon wafer 12 to generate a micro-nano pattern. Structured silicon wafer 12 .

[0061] Coating the polymer solution on the surface of the silicon chip 12 with a micro-nano pattern structure of a specific shape, the polymer solution is a polydimethylsiloxane (polydimethylsiloxane, PDMS) solution, whe...

Embodiment 3

[0065] The embodiment of the present invention also provides a nano-dot prepared on a non-planar substrate glass rod (500 μm in diameter) based on a polymer mask with a nano-dot pattern structure and a nano-lithography process, wherein the planar part of the nano-pattern The characteristic size of is larger than the wavelength of light (L>λ).

[0066] First follow figure 1 , to prepare a polymer mask with a nano-dot pattern structure. then follow Figure 5 The process flow, on the non-planar substrate glass rod (diameter 500μm), based on the polymer mask with nano-dot pattern structure, nano-dots are prepared by nano-lithography process.

[0067] Such as Figure 5 As shown, firstly, a positive photoresist 52 is coated on the surface of a non-planar substrate glass rod 51 (500 μm), then placed on a hot plate at 120° C., and baked for 2 minutes to cure the positive photoresist 52 . A polymer mask 54 with a micro-nano pattern structure is then used as a photolithography mask....

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Abstract

The invention relates to the field of nano-patterning, in particular to a method for fabricating a mask having a micro-nano pattern structure and a nanolithography method, comprising the steps of: using a patterned craft to define a pattern requiring to be etched on a silicon wafer substrate; anisotropically etching the surface of the silicon wafer, and preparing a micro-nano pattern arrangement structure of a specific shape and a specific size on the silicon wafer by controlling the etching process; coating the polymer solution on the surface of the silicon wafer having a specific shape of the micro-nano pattern arrangement structure, and transferring the micro-nano pattern structure on the surface of the silicon wafer onto the polymer; taking out the polymer after transfer, and using thepolymer having a micro-nano pattern structure as a photolithography mask for photolithographic preparation of the micro-nano pattern. The invention simultaneously has the advantages of low cost, simplification, high efficiency, and flexible control of the feature size and geometry of the pattern. The process is capable of realizing the total reflection type lithographic exposure technology by adjusting the pattern size of the polymer mask.

Description

technical field [0001] The invention relates to the field of nano-patterning, in particular to a method for manufacturing a mask plate with a micro-nano pattern structure and a nano-lithography method. Background technique [0002] In the field of nano-patterning, it is particularly important to prepare large-scale, controllable, and efficient nano-feature size patterns. The nanopatterning process has many applications and can be applied in several research fields, including chemistry, physics, biology and electronics. [0003] At present, in the field of nano-patterning research, according to whether a mask is needed, it can be divided into photolithography mask patterning technology and maskless patterning technology. Currently, there are many maskless nanolithography techniques, such as electron beam lithography (EBL), scanning probe-based lithography (SPL), nanoimprinting, etc. However, these nanolithography technologies have disadvantages such as high cost and inabili...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03F1/52G03F1/68
CPCG03F1/52G03F1/68
Inventor 吴进刘川李敏敏
Owner SUN YAT SEN UNIV