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Manufactur standard Multi-Species Pcb - Good Quality Pcb Assembly Small Printed Circuit Board With Low Cost – Yongmingsheng

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In order to give you convenience and enlarge our business, we also have inspectors in QC Team and assure you our best service and product for Heavy Copper Pcb, 2layer Aluminum Pcb, 2layer 4 Layer 6layer Pcb, We encourage you to make contact as we are looking for partners in our venture. We are sure you will find doing business with us not only fruitful but also profitable. We are ready to serve you with what you require.
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Our benefits are decrease charges,dynamic income group,specialised QC,solid factories,top quality products and services for Good Quality Pcb Assembly Small Printed Circuit Board With Low Cost, To gain from our strong OEM/ODM capabilities and considerate products and services, make sure you contact us today. We’re going to sincerely develop and share achievement with all clients.
Our benefits are decrease charges,dynamic income group,specialised QC,solid factories,top quality products and services for Circuit Board, Pcb Assembly, Small Printed Circuit Board, Business philosophy: Take the customer as the Center, take the quality as the life, integrity, responsibility, focus, innovation.We’ll supply skilled, quality in return for the trust of customers, with most major global suppliers?ê?all of our employees will work together and move forward together.
The substrate of High Tg circuit board will change from “glass state” to “rubber state” when the temperature rises to a certain area, and this temperature is called the glass transition temperature (Tg) of the board. In other words, Tg is the maximum temperature (℃) at which the substrate remains rigid. That is to say, ordinary PCB substrate materials at high temperature not only produce softening, deformation, melting and other phenomena, but also performance in the mechanical, electrical characteristics of a sharp decline (I don’t think we want to see their products appear this situation).

Generally speaking, the board of Tg is more than 130 degrees, high Tg is more than 170 degrees, and medium Tg is more than 150 degrees.

Usually Tg≥170℃ PCB, called high Tg PCB.

When the Tg of the substrate increases, the circuit board’s heat resistance, moisture resistance, chemical resistance, stability resistance and other characteristics will be improved. The higher the TG value, the better the temperature resistance of the plate. And the high TG is often applied in the lead-free process,

High Tg refers to high heat resistance. With the rapid development of the electronic industry and the electronic products represented by computer, the higher heat resistance of PCB substrate materials have become an important guarantee when the development towards into a high function and high multilayer. What’s more, the appearance and development of high-density installation technology represented by SMT and CMT make PCB more and more inseparable from the support of high heat resistance of substrate in small aperture, fine circuit and thin form.

Therefore, the difference between the general fr-4 and the high Tg fr-4 is that in the thermal state, especially in the case of heat after moisture absorption. And there are many differences in the mechanical strength, dimensional stability, adhesion, water absorption, thermal decomposition, thermal expansion and other conditions of the materials. The products with high Tg are obviously better than ordinary PCB substrate materials. In recent years, the number of customers requiring the production of high Tg circuit board increased year by year.


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While in the past few years, our organization absorbed and digested innovative technologies both equally at home and abroad. Meanwhile, our organization staffs a group of experts devoted for the advancement of Manufactur standard Multi-Species Pcb - Good Quality Pcb Assembly Small Printed Circuit Board With Low Cost – Yongmingsheng , The product will supply to all over the world, such as: Indonesia, Seattle, Bahamas, With the first-class solutions, excellent service, fast delivery and the best price, we've won highly praise foreign customers'. Our products have been exported to Africa, the Middle East, Southeast Asia and other regions.
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    As an international trading company, we have numerous partners, but about your company, I just want to say, you are really good, wide range, good quality, reasonable prices, warm and thoughtful service, advanced technology and equipment and workers have professional training, feedback and product update is timely, in short, this is a very pleasant cooperation, and we look forward to the next cooperation!
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