Electronic component cleaning agent

A technology of electronic components and cleaning agents, applied in the field of cleaning agents, can solve the problems of large investment, air pollution, ozone layer damage, etc., and achieve the effect of wide source of raw materials, strong cleaning ability and wide application range

Active Publication Date: 2012-12-12
HENGYANG HONDAWEI ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the organic solvent cleaning agents use volatile ones such as acetone, ethanol, petroleum ether, cyclohexane, methylene chloride, trichlorethylene, Freon, etc. These cleaning agents have serious air pollution and are extremely destructive to the ozone layer. Belonging to ODS substances, the use of which has been restricted or prohibited by relevant international organizations
Although the existing water-based or semi-aqueous electronic cleaning agents avoid the pollution of the atmospheric environment, in terms of their use effects, they lack functionality in the cleaning of electronic components, that is, it is difficult to ensure the integrity of electronic components, and they are harmful to the touch. Pins, contacts, sealing glue, ITO coating, silk screen pattern, etc. have a great impact, and may also affect the photoelectric characteristics, electromagnetic characteristics, permeability, physical characteristics of the device surface, etc., resulting in low pass rate and good product rate of electronic components Low cost, increased cost, reduced service life, and it is difficult to fully meet the cleaning requirements of electronic components
[0004] Optical cleaning, although the cleanliness of the cleaning is high, the required equipment is expensive, most of which are imported, the investment is too large, and it may affect the photoelectric characteristics of electronic components
[0005] Electric pulse cleaning, the equipment required for cleaning is complex and expensive, and due to the existence of hydroelectric effect, it may affect the electrical and magnetic properties of electronic components

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Weigh 65 parts by weight of magnetized water, add 8.5 parts by weight of N,N'-dihydroxyethylethylenediamine and 0.5 parts by weight of ethylenediaminetetraacetic acid to the magnetized water, stir for 15 minutes, and then add 10 parts by weight of alkyl polyglucoside 0810 and 16 parts by weight of isomeric alcohol ether E-1310 were mixed uniformly to obtain a cleaning agent for electronic components. The magnetic source used in the magnetized water is a neodymium-iron-boron magnet, the shape of the magnet is tile-shaped, and the magnetic field strength is 4000 gauss.

[0022] The cleanliness of the surface is detected by the imaging detection and analysis system. The cleaning results of the electronic component cleaning agent obtained in this example on electronic components, integrated circuits, PCB circuit boards and liquid crystal display screens show that there is no particle pollution larger than 0.5 μm, and there is no volatile residue The mass concentration of th...

Embodiment 2

[0024] Weigh 50 parts by weight of magnetized water, add 4 parts by weight of N,N'-dihydroxyethylethylenediamine, 10 parts by weight of β-hydroxyethylethylenediamine, 0.5 parts by weight of A few parts by weight of citric acid and 0.5 parts by weight of aminotriacetic acid were stirred for 15 minutes, and then 20 parts by weight of alkyl polyglucoside 0816 and sodium gluconate of 15 parts by weight were added and mixed evenly to obtain a cleaning agent for electronic components. The magnetic source used in the magnetized water is an NdFeB magnet, the shape of the magnet is tile-shaped, and the magnetic field strength is 6000 Gauss.

[0025] The cleanliness of the surface is detected by the imaging detection and analysis system. The electronic component cleaning agent obtained in this embodiment has the same cleaning effect on electronic components, integrated circuits, PCB circuit boards and liquid crystal display screens as in the first embodiment.

Embodiment 3

[0027] Weigh 70 parts by weight of magnetized water, add 8 parts by weight of N-(2-hydroxyethyl)ethylenediamine, 0.5 parts by weight of ethylenediaminetetraacetic acid, 0.5 parts by weight of amino Triacetic acid, stirred for 15 minutes, then added 21 parts by weight of sodium gluconate, and mixed evenly to obtain a cleaning agent for electronic components. The magnetic source used in the magnetized water is a neodymium-iron-boron magnet, the shape of the magnet is tile-shaped, and the magnetic field strength is 8200 gauss.

[0028] The cleanliness of the surface is detected by the imaging detection and analysis system. The electronic component cleaning agent obtained in this embodiment has the same cleaning effect on electronic components, integrated circuits, PCB circuit boards and liquid crystal display screens as in the first embodiment.

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PUM

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Abstract

The invention provides an electronic component cleaning agent which comprises the following ingredients in percentage by mass: 50-75% of magnetic water, 2-14% of organic base, 15-35% of surfactant and 0.1-1.0% of chelator. The electronic component cleaning agent provided by the invention is low in cost, wide in raw material sources and high in cleaning capability. can effectively remove pollution of metal ions, can not damage the integrity of an electronic component, can not influence the current-illumination characteristic, electromagnetic characteristic, permeability, surface physical characteristic and other properties of the electronic component, and is environment-friendly and pollution-free. Thus, the electronic component cleaning agent can be widely used for cleaning in the manufacturing processes of electronic components, integrated circuits, PCBs (printed circuit board), liquid crystal displays and the like, and has a wide application range.

Description

technical field [0001] The invention relates to a cleaning agent, in particular to an electronic element cleaning agent. Background technique [0002] Cleaning in the manufacturing process of electronic components, in addition to chemical cleaning using cleaning agents, also includes cleaning methods such as electric pulse cleaning, optical cleaning, high-pressure water jet cleaning and ultrasonic cleaning. In practical application, the existing various cleaning methods always have various insurmountable technical defects or regulatory restrictions, and it is difficult to meet the requirements of modern industrial development. [0003] Among various cleaning methods, chemical cleaning is mostly used, that is, chemical cleaning agents are used to clean electronic components with a certain cleaning process. The current cleaning agents used in chemical cleaning include organic solvent cleaning agents, semi-aqueous cleaning agents and water-based cleaning agents. cleaning. Mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D10/02
Inventor 郭希杰熊庆玉
Owner HENGYANG HONDAWEI ENVIRONMENTAL TECH CO LTD
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