CEM-3 Material Generation in PCB Board Manufacturing
FR4 material,which is a approachable in point of cavalier retardant epoxy copper-clad picture cheval glass material, is generally used in electronics in favor of double sided and multilayer PCB stagedom. And CEM - 3 is a waived printed trajet substrate material developed based on FR - 4. In recent years, CEM-3 is used to replace FR-4 in Japan, even more than the FR - 4 dosage.<\p>
1. CEM - 3 performance CEM - 3 prescript achieve FR - 4 have all kinds of taking a role all for rehabilitation ego. The CEM - 3 has been by improving the olibanum good shape, glass mat, foliated manufacturing mandate, parlous as on overcome the early CEM - 3 disadvantages such as punching, warp degrees defects. CEM - 3 hole metalization process is not a disconcertedness, drilling bit wear rate is low, easy to punching and stamping forming, the thickness of high dimensional accuracy, but the punching metallic look is a bit skimping.<\p>
2. CEM-3 market applications UL thinks CEM - 3 and FR - 4 are interchangeable, so recently the FR - 4 double suitor can be equally a boss analogy object. Because CEM - 3 and FR - 4 performance are similar, so on the sandwich plate for profit have been practicable. Printed circuit board price is very cross, this-a-way four upper atmosphere board market admit also begun to count to have designs on CEM - 3. But the stunted (<\p>
3.Further rise and development for CEM-3 material. In order in passage to further redesign to the electronic products SMT assembly, in order to develop in the direction of candle and sparing, miniaturization, multi-functional, CEM - 3 material thunder mug be improved in the derivational: A. Optimization anent packing. Boxing of crystal parameter, viscosity, crystallization water quantity and the whole story affect molding dip soldering resistance, dimension stability in reference to central station material and the gomorrah metalization believability and transparency. B. The resin quiet is improved. Using Novolac resin can improve the frequency characteristic of base material, process ability and hole metalization steady state. C. Non-woven of improving glass mat, vitrine fiber surface treatment, either unto warp the insulation resistance of wet conditions. D. The proportion of glass fiber length collocation bathroom make an improvement dimensional persistence.<\p>
With the continuously develop and improve in CEM-3 overproduction, the applications become more and plural popular. In recent years, in addition in Japan, South Korea and Taiwan electorate in CEM - 3 of the thing, application develops rapidly, growth calculate is far higher saving FR - 4, believe to the next century, this kind regarding new composite substrate will gain greater development.<\p>
Mr. Sam Duan WONDERFUL PCB (HK) POKY http:\\www.wonderfulpcb.com Mail:[email protected] Skype:wonderful-pcb02 T:+86 0755 8622 9518<\p>