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A kind of degreasing agent, its preparation method and application

A degreaser and penetrant technology, applied in the degreaser field, can solve the problems of N-methylpyrrolidone with great environmental harm and poor cleaning effect, and achieves wide application range, good cleaning and degreasing effect, and low corrosion rate Effect

Active Publication Date: 2021-06-01
SHANGHAI SINYANG SEMICON MATERIALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The present invention uses a sulfone organic solvent instead of N-methylpyrrolidone, effectively overcomes the disadvantage of poor cleaning effect by adjusting the types and contents of each component of the degreasing agent, and can achieve an effect equivalent to that of using N-methylpyrrolidone , also solves the problem that N-methylpyrrolidone is harmful to the environment

Method used

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  • A kind of degreasing agent, its preparation method and application
  • A kind of degreasing agent, its preparation method and application
  • A kind of degreasing agent, its preparation method and application

Examples

Experimental program
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Effect test

preparation example Construction

[0052] In the following examples and comparative examples, the preparation method of the degreasing agent includes the following steps: mixing the components of the degreasing agent.

[0053] In the following examples, in order to limit the specific operating temperature, it all refers to carrying out at room temperature.

Embodiment 1-12

[0056] Each component of table 1 degreaser

[0057]

[0058]

[0059] Table 2 Mass fraction of each component

[0060]

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Abstract

The invention discloses a degreasing agent, its preparation method and application. The degreasing agent of the present invention comprises the following components in mass fraction: 10%-40% of sulfone organic solvent, 3%-15% of organic amine, 5%-18% of penetrating agent, 0.3%-4% corrosion inhibitor, 0.1%-1.5% of non-ionic surfactant A, 0.3%-2% of non-ionic surfactant B, and water; non-ionic surfactant A is N,N-dimethyl Hexadecyl-N-amine oxide; Nonionic surfactant B is di-n-octyl sulfoxide. The degreasing agent of the invention can effectively remove the oil on the surface of the lead frame, has the characteristics of low foaming, low corrosion, little harm to the environment, non-toxic and mild cleaning conditions, and has broad application prospects.

Description

technical field [0001] The invention relates to a degreasing agent, its preparation method and application. Background technique [0002] In the integrated circuit packaging process, the treatment of the lead frame needs to go through many processes such as degreasing, activation, electroplating, cleaning, drying, etc. Among them, degreasing is the pretreatment process of lead frame electroplating, and the degreasing effect will directly affect the coating effect of subsequent electroplating . High-efficiency degreasing agents need to achieve low-foaming, low-corrosion, no oil residue, less harmful to the environment, non-toxic, and mild cleaning conditions. [0003] At present, no degreaser related to integrated circuit packaging has been found in patents, and the degreaser for lead frame pretreatment currently on the market mostly uses N-methylpyrrolidone as a solvent, which is more harmful to the environment. [0004] Therefore, there is an urgent need to develop a degr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23G1/00C25D5/34
CPCC23G1/00C25D5/34
Inventor 王溯蒋闯
Owner SHANGHAI SINYANG SEMICON MATERIALS