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Flexible printed circuit board washing agent, flexible printed circuit board washing method, flexible printed circuit board, and electronic equipment

A flexible circuit board and cleaning agent technology, which is applied in the direction of surface active detergent composition, detergent compounding agent, detergent composition, etc., can solve the problem of unsafe and environmentally friendly cleaning agent, unclean cleaning of rosin, and white spots on circuit boards and other problems, to achieve good decontamination cleaning effect, convenient batching, and reduce corrosion

Active Publication Date: 2018-01-26
LENS TECH CHANGSHA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the existing cleaning agents for flexible circuit boards cannot clean the residual rosin of the product, resulting in white spots on the circuit board after cleaning, and also causing corrosion to the FPC. There are still problems such as the cleaning agent itself is not safe and environmentally friendly, and it is not easy to wash after use.

Method used

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  • Flexible printed circuit board washing agent, flexible printed circuit board washing method, flexible printed circuit board, and electronic equipment
  • Flexible printed circuit board washing agent, flexible printed circuit board washing method, flexible printed circuit board, and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0128] A flexible circuit board cleaning agent is composed of the following components in mass percentage: 30% of N-methylpyrrolidone, 35% of butyrolactone, 1.5% of glycolic acid, 2% of penetrant JFC and 31.5% of water.

Embodiment 2

[0130] A cleaning agent for a flexible circuit board is composed of the following components in mass percentage: 45% of N-methylpyrrolidone, 20% of butyrolactone, 3% of glycolic acid, 0.5% of penetrant JFC and 31.5% of water.

Embodiment 3

[0132] A cleaning agent for a flexible circuit board is composed of the following components in mass percentage: 37% of N-methylpyrrolidone, 28% of butyrolactone, 2% of glycolic acid, 1% of penetrant JFC and 32% of water.

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PUM

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Abstract

The invention discloses a flexible printed circuit board washing agent, a flexible printed circuit board washing method, a flexible printed circuit board, and electronic equipment, and belongs to thetechnical field of circuit board washing. The flexible printed circuit board washing agent comprises, by mass, 30 to 45% of N-methyl pyrrolidone, 20 to 35% of butyrolactone, 1.5 to 3% of a carboxylicacid complexing agent, 0.5 to 2% of a penetrating agent, and the balance water. According to the flexible printed circuit board washing method, the flexible printed circuit board washing agent is usedfor washing the flexible printed circuit board. The flexible printed circuit board washing method is capable of solving problems in the prior art that complete removing of residual rosin is impossible to realize using conventional flexible printed circuit board washing agent, white spots are left on the flexible printed circuit board after washing, the conventional flexible printed circuit boardwashing agent is not safe, and is not friendly to the environment, and water washing is inconvenient to realize after applications of the conventional flexible printed circuit board washing agent. Theflexible printed circuit board washing agent is capable of removing rosin matters left on the flexible printed circuit board, and removing metal oxides and grease on the flexible printed circuit board, is excellent in stain removing effect, corrosion of flexible printed circuit board is not caused, after washing, the surface of the flexible printed circuit board is clean and bright, and no whitespot is generated.

Description

technical field [0001] The invention relates to the technical field of circuit board cleaning, in particular to a flexible circuit board cleaning agent, a flexible circuit board cleaning process, a flexible circuit board and electronic equipment. Background technique [0002] Flexible Printed Circuit (FPC) is a highly reliable and excellent flexible printed circuit board made of polyimide or polyester film as the base material. There will be solder paste and flux residues on the printed circuit board, so the cleaning of the circuit board is an important part. With the progress of society, FPC technology is changing with each passing day, and the requirements for cleaning are getting higher and higher. [0003] Before the circuit board is assembled, it is necessary to remove the dirt such as glue traces, oil stains, dirt and flux residues on the surface. When cleaning these substances, some of them may need to be manually operated or carried out in a closed space. This requi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C11D1/72C11D3/20C11D3/28C11D3/60B08B3/08B08B3/10B08B3/12
Inventor 饶桥兵蔡杰勇
Owner LENS TECH CHANGSHA
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