随着5G时代的发展，PCB（PrintedCircuitBoard）行业的发展一定也随之壮大，而PCB作为电子元器件的核心支撑载体，所需要用到的原材料非常多，包括过硫酸钠在内的各种化学物料。不过很多虽然知道PCB行业需要用到过硫酸钠，但是具体如何就不清楚，这很常见，因为这其中可能会涉及一些技术问题。而今天氢氧化钾厂家要和大家讲的是过硫酸钠在PCB行业的一般应用——微蚀！

With the development of 5G era, the development of PCB (Printed Circuit Board) industry must also grow. As the core support carrier of electronic components, PCB needs a lot of raw materials, including various chemical materials such as sodium persulfate. However, although many people know that the PCB industry needs sodium persulfate, they do not know how to use sodium persulfate. This is very common, because it may involve some technical problems. Today,  wants to talk about the general application of sodium persulfate in PCB industry -- micro etching!

线路板分为单层与多层，多层线路板有内层和外层之分。如手机、电脑主板等等要用到多层的线路板以缩小体积。内层线路在线路板的中间，所以内层线路不要求外观，而强调功能。

The circuit board is divided into single layer and multilayer, and multilayer circuit board is divided into inner layer and outer layer. For example, mobile phones, computer motherboards, etc., require multi-layer circuit boards to reduce the size. The inner layer circuit is in the middle of the circuit board, so the inner layer circuit does not require appearance, but emphasizes function.

所以，内层线路的微蚀强调尽量使表面粗内糙，当进行压合的时候使两层线路板粘合性较好。一般的微蚀使用过硫酸钠，不仅能清洁粗化线路铜面，还能确保图形电镀铜与一次铜之间的结合力。

Therefore, the micro etching of the inner layer circuit emphasizes to make the surface as rough as possible, so that the adhesion of the two layers of circuit boards is better when pressing. Generally, sodium persulfate is used for micro etching, which can not only clean the copper surface of roughened circuit, but also ensure the adhesion between pattern electroplating copper and primary copper.

使用过硫酸钠进行微蚀的话粗化速率较为稳定均匀，水洗性好，是其它物料所不能比拟的。

When sodium persulfate is used for micro etching, the roughening rate is more stable and uniform, and the water washing property is better than that of other materials.

过硫酸钠在PCB生产中作为微蚀剂使用时也没有明显不同，因此给一些商人有机可乘，以过硫酸铵冒充过硫酸钠的个案在珠三角地区并不鲜见，在珠三角周边地区更为严重。

The use of sodium persulfate as a micro etchant in PCB production is not obviously different, so some businessmen have the opportunity to take advantage of the fact that the case of passing off ammonium persulfate as sodium persulfate is not uncommon in the Pearl River Delta region, especially in the surrounding areas.

假冒的过硫酸钠不仅对电路板企业的废水处理带来困扰（氨氮容易超标），也带来了储存的危险性（按过硫酸钠的条件储存过硫酸铵有可能酿成火灾），还给我们生产过硫酸钠的企业带来经济上的损失，过硫酸钠被假货冒充导致长期偏低。

The counterfeit sodium persulfate not only brings troubles to the wastewater treatment of circuit board enterprises (ammonia nitrogen is easy to exceed the standard), but also brings risks to the storage (storing ammonium persulfate under the conditions of sodium persulfate may lead to a fire). It also brings economic losses to our enterprises producing sodium persulfate. The price of sodium persulfate is low for a long time because it is counterfeited.

因此，对于过硫酸钠的选购您要多提起精神来查看验收，不要一味的被低廉所懵逼。更多相关内容就来我们网站http://www.jinhao360.com留言咨询吧！

Therefore, for the purchase of sodium persulfate, you should pay more attention to check the acceptance, and not be fooled by the low price. More relevant content will come to our website http://www.jinhao360.com Leave a message for consultation!