source:Industry News release time:2021-09-13 Article author:sznbone Popular:pcb
Circuit board manufacturers introduce you to the role of micro-sectioning
Microsectioning is for circuit boards, just like X-rays are used to see a doctor. It can be used to find out the truth of the problem, to help solve the problem, and to crack the mystery of various new processes and new boards. Good slices often have unexpected discoveries, so that the hands-on people often get a great sense of accomplishment. Engineers in the industry should practice frequently and apply them extensively. Today, the small experience summarized by the editor of Shenzhen PCB manufacturers will introduce the role of micro-slicing.
In Shenzhen circuit board manufacturers or other regions, after obtaining the circuit board samples, the micro-slice production process is first to perform sealing (other board samples) and filling (for through-holes), the purpose is in the dynamic process of grinding and polishing In order to avoid undue harm to the slender real image. Especially for the latter, it is necessary to fill the holes as much as possible to reduce the appearance of bubbles, so as to ensure the authenticity of the cutting details and the beauty of the photographic picture.
Once bubbles appear in the hole, the hard-to-retrieve precious sample will not be a bubble, but at least there will be major flaws on the screen. The flaws cannot be saved, whether it is for research or judgment purposes. It is inevitable to be overshadowed with regrets again and again. The most important indicator of sealant filling is not to produce "bubbles".
As for the selected compound, it is convenient to use. In principle, the various acrylic transparent powders from Buehler's professional suppliers are the best, but the price is very expensive. The commonly used substitutes are mostly DexterHysol's "Epoxi-Patch", which is Commonly known as AB glue, such as small toothpaste-like two-component matching, the main component is "DielthyleneTriamine". The dosage ointment of the commonly used main agent resin is 2.54oz, and the volume of the hardener dosage ointment is 0.81oz.
The amount of glue used can be adjusted in a 3:1 manner according to the number of samples, which not only saves but also the "sample" formed is small in volume, transparent and good, and has sufficient hardness. It is suitable for observation and storage. It is found by domestic industry. A secret weapon.
The existence of micro slicing for circuit boards is so subtle, and the role of micro slicing is also very important for circuit boards. In our circuit board manufacturer (Shenzhen circuit board), according to the above information, do you understand the role of micro slicing?
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