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Tungsten foil mesh for transmission microscope and scanning microscope and method for making same

A technology of scanning microscope and transmission microscope, which is applied in the field of tungsten foil mesh, can solve the problems of not being disclosed, and achieve the effect of material strength, high temperature resistance and stable chemical properties

Active Publication Date: 2016-04-06
BEIJING XINXING BRAIM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that the patent application does not disclose the technical characteristics that the material in claim 1 is tungsten, and the thickness of the carrier grid is 0.01 mm to 0.05 mm, and the number of holes in the mesh is 1 mesh to 600 mesh.

Method used

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  • Tungsten foil mesh for transmission microscope and scanning microscope and method for making same
  • Tungsten foil mesh for transmission microscope and scanning microscope and method for making same
  • Tungsten foil mesh for transmission microscope and scanning microscope and method for making same

Examples

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Effect test

Embodiment 1

[0019] Select a tungsten foil with a thickness of 0.01mm to make it according to the following steps, and get figure 1 The outer diameter shown is 3mm, the number of mesh holes is 600 mesh, and the mesh is a tungsten foil mesh with square holes.

[0020] The first step (1) is drawing: first draw manually according to the requirements of the required tungsten mesh, then transfer the manual drawing sketch to the computer for accurate drawing, and then print out the black and white negative film at a ratio of 1:1; form a sheet on the negative film The picture opposite to the real tungsten mesh, also called the positive and negative film, is used as the target for making the real thing.

[0021] Step (2) is tungsten foil treatment: the surface of the tungsten foil is cleaned and dried with a kitchen super fume cleaner; the ordinary kitchen fume cleaner is purchased from Beijing Lvsan Chemical Co., Ltd., and its model is Q / HDLSH008.

[0022] The (3) step is gluing: the tungsten fo...

Embodiment 2

[0032] A tungsten foil with a thickness of 0.05mm is selected and manufactured according to the following steps to obtain figure 2 The outer diameter shown is 3.05mm, the number of mesh holes is 100 mesh, and the mesh is a tungsten foil mesh with round holes.

[0033] The first step (1) is drawing: first draw manually according to the requirements of the required tungsten mesh, then transfer the manual drawing sketch to the computer for accurate drawing, and then print out the black and white negative film at a ratio of 1:1; form a sheet on the negative film The picture opposite to the real tungsten mesh, also called the positive and negative film, is used as the target for making the real thing.

[0034] Step (2) is tungsten foil treatment: the surface of the tungsten foil is cleaned and dried with a kitchen super fume cleaner; the ordinary kitchen fume cleaner is purchased from Beijing Lvsan Chemical Co., Ltd., and its model is Q / HDLSH008.

[0035]The (3) step is gluing: t...

Embodiment 3

[0045] A tungsten foil with a thickness of 0.02mm is selected and manufactured according to the following steps to obtain image 3 The outer diameter shown is 3mm, the number of mesh holes is 300 mesh, and the mesh is a tungsten foil mesh with honeycomb holes.

[0046] The first step (1) is drawing: first draw manually according to the requirements of the required tungsten mesh, then transfer the manual drawing sketch to the computer for accurate drawing, and then print out the black and white negative film at a ratio of 1:1; form a sheet on the negative film The picture opposite to the real tungsten mesh, also called the positive and negative film, is used as the target for making the real thing.

[0047] Step (2) is tungsten foil treatment: the surface of the tungsten foil is cleaned and dried with a kitchen super fume cleaner; the ordinary kitchen fume cleaner is purchased from Beijing Lvsan Chemical Co., Ltd., and its model is Q / HDLSH008.

[0048] The (3) step is gluing: ...

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Abstract

The invention provides a tungsten foil mesh for a transmission microscope and a scanning microscope. The thickness of the tungsten foil mesh is from 0.01 mm to 0.05 mm and the number of mesh holes is from 1 mesh to 600 meshes. A production method of the tungsten foil mesh comprises drawing, tungsten foil processing, performing photoresist, pre-baking, performing exposure, developing, rinsing, post-baking, etching and removing of photoresist. The production method of the tungsten foil mesh for the transmission microscope and the scanning microscope has the advantage of enabling obtained mesh holes of electron microscope tungsten foil meshes to be clear and hole walls of the electron microscope tungsten foil meshes to be smooth.

Description

technical field [0001] The invention relates to a tungsten foil net used for a transmission microscope and a scanning microscope and a manufacturing method thereof. Background technique [0002] The copper mesh used in transmission microscopes and scanning microscopes developed before 1975 is far from meeting the needs of more scientific research. On the one hand, in the field of material science research, the temperature is as high as 2000 degrees during the production process of the sample, and the surface is required to be resistant to acid and alkali, while the traditional copper carrier grid is not resistant to high temperature, the hardness is not enough, and the surface is easily corroded, which makes it impossible to analyze . On the other hand, in the field of scientific research, such as the field of biochemical research, since the field of nanochemistry plays an important role in the research and observation of the structure of nanoparticle carbon nanotubes, more...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01J37/20H01J9/00G03F7/00
Inventor 张继明田连建
Owner BEIJING XINXING BRAIM TECH
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