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A replenishing liquid capable of improving the service life of hydrogen peroxide-based etching liquid

The technology of hydrogen peroxide and etching solution is applied in the field of replenishing solution that can improve the service life of hydrogen peroxide-based etching solution, can solve the problems such as insufficient utilization of hydrogen peroxide and other components, and achieves saving etching cost, The effect of saving usage and improving service life

Active Publication Date: 2022-04-01
武汉迪赛新材料有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

After the copper ion concentration of these etching solutions exceeds 7000ppm, if they continue to be used, they cannot maintain the required etching parameters such as qualified etching angles, so the etching solution must be replaced. In fact, the hydrogen peroxide in the etching solution is only consumed at this time. A small part, and a large amount of hydrogen peroxide and other components have not been fully utilized

Method used

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  • A replenishing liquid capable of improving the service life of hydrogen peroxide-based etching liquid
  • A replenishing liquid capable of improving the service life of hydrogen peroxide-based etching liquid
  • A replenishing liquid capable of improving the service life of hydrogen peroxide-based etching liquid

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Embodiment Construction

[0027] Below, the applicant will describe the technical solutions and technical effects of the present invention in detail in conjunction with specific embodiments. It should be understood that the following examples are only examples, and the present invention is not limited to these examples.

[0028]The raw materials used in the following examples and comparative examples are all commercially available products with a purity of analytical grade or above, such as ultrapure water with a conductivity of <5 μS / cm.

[0029] According to the types and ratios of raw materials shown in the following table 1, a kind of replenishing liquid that can improve the service life of the hydrogen peroxide-based etching solution of Examples 1-6 and the replenishing liquid of Comparative Examples 1-8 were prepared;

[0030] The preparation method is as follows: firstly, ammonium persulfate is added into ultrapure water, stirred until it is completely dissolved, and then a chelating agent, a re...

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Abstract

The invention belongs to the technical field of materials for chemical etching of metal materials, and in particular relates to a replenishing liquid capable of improving the service life of a hydrogen peroxide-based etching liquid. With respect to the total weight of the overall composition, each component in the replenishing liquid comprises 4-20% ammonium persulfate, 8-30% chelating agent, 4-20% regulator, 2-10% multifunctional additive and ultrapure water to make the overall composition 100%. After the replenishing liquid of the present invention is added to the hydrogen peroxide-based etching liquid that is close to failure after continuous etching, the service life of the etching liquid can be significantly improved again, the purpose of saving the amount of etching liquid can be achieved, and the etching cost can be significantly saved, which has a very large Industrial promotion value.

Description

technical field [0001] The invention belongs to the technical field of materials for chemical etching of metal materials, and in particular relates to a replenishing liquid capable of improving the service life of a hydrogen peroxide-based etching liquid. Background technique [0002] The liquid crystal display includes a liquid crystal display panel and a backlight module, and the liquid crystal display panel includes a CF substrate, a TFT array substrate, and a liquid crystal material between the CF substrate and the TFT substrate. By supplying power to the TFT substrate or not, the direction of the liquid crystal molecules is controlled, and the light from the backlight module is projected onto the CF substrate to generate a picture. [0003] The liquid crystal panel is the heart of the liquid crystal display, accounting for more than 80% of the cost of the entire product, and its quality will directly affect the display's color, brightness, contrast, viewing angle and ot...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23F1/46C23F1/18C23F1/26
CPCC23F1/46C23F1/18C23F1/26
Inventor 邹玲詹洪郭文勇罗晓锋陆飚
Owner 武汉迪赛新材料有限公司
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