Due to the continuous influence of the working process, it is easy to produce a lot of foam on the PCB. These bubbles can cause the circuit of the thick copper circuit board to block, so that the electronic equipment cannot work properly. Therefore, many manufacturers choose thick copper circuit board defoamers to solve the problem of PCB bubbles.

What causes the thick copper circuit board to produce foam?

1. During the cleaning and cleaning process of the PCB, due to the drilling and cleaning problems, an oxidation reaction will occur, resulting in foam.

2. Poor contact between copper and copper causes temperature rise and foam.

3. The thick copper circuit board will be stopped for too long in the workshop and will be in contact with the oil and dust in the workshop, and bubbles will be generated when the cleaning does not meet the standards.

4. Insufficient post-curing time is usually manifested by blistering and oil dripping on both sides of the corner after tin spraying.

If we do not deal with these foam problems in time, what will be the harm?

1. The foam directly affects the contact performance quality of the PCB, resulting in the impedance of the thick copper circuit board and the failure of electronic equipment to work normally.

2. Foam will affect the subsequent processing and increase the difficulty of detection in the two tests.

3. Affect the cleaning of thick copper circuit boards, causing foam to overflow and pollute the surrounding environment.

4. Improper crimping of thick copper circuit boards will cause air, moisture and pollutants to enter, causing inconvenience to manufacturing and affecting production progress.

thick copper circuit board defoamer is easy to use and can be added directly. Only a small amount can achieve the desired defoaming effect; and thick copper circuit board defoaming agent has a wide range of uses. In the process of use, it can adapt to various strong acid and alkali environments, and is not affected by high temperature; it has good compatibility, high stability, does not react with other chemical properties, and will not change the performance and appearance of the product; thick copper circuit board defoamer It is produced with environmentally friendly formula and will not produce residue during use. It has excellent defoaming and anti-foaming performance, does not affect the processing of thick copper circuit boards, and is convenient for environmental protection.

To produce electronic products, first complete the core thick copper circuit board of electronic equipment. Thick copper circuit boards are constantly running at work. Stamping and extrusion easily produce foam. Too much foam will cause the thick copper circuit board to block, which will affect the normal operation of the thick copper circuit board. At this time, it is necessary to use a thick copper circuit board defoamer to eliminate foam. There are many reasons, such as poor contact of the copper coating on the thick road plate, and the calorific value increases; the surface roughness of the circuit board; due to problems such as drilling and cleaning, oxidation occurs during the cleaning process; The transportation in the workshop is stopped, resulting in long-term contact with oil and dust in the workshop.

During the cleaning process, foam will be generated before the cleaning standard is reached, which will seriously affect the quality of the PCB.

1. Foam directly affects the contact quality of PCB.

2. Foam affects subsequent processing and increases the difficulty of the second test.

Excessive foam produced during container processing and other chemical components spilled.

circuit board defoamer effect is obvious, easy to use, good compatibility, high stability, will not react with other additional chemical properties; will not affect the quality and function of thick copper circuit board products; defoamer will not stay on the thick copper circuit board, will not affect the back of the drilling, cleaning and other follow-up work; less use, low cost, high cost performance.