Why we discuss the cost of metal core PCB? All engineers and designers want to reduce cost of metal core PCB. They are always looking for information and suggestions with the lower price board. Then the price of metal core PCB is up and down recent months. You may get the metal core PCB price […]
Author Archives: emma-mc
Do you know the raw rigid PCB material? The main raw material of rigid PCB is CCL. CCL, short for copper clad laminate. Its main made up of copper foil, glass fiber, resin and other materials. As the essential material for fabricating rigid PCB board. Also can use flexible CCL for manufacturing flexible PCB board. […]
Multilayer PCB image process needs several photosensitive film. From our 4MCPCB experience, we should make one film per PCB layer at least. Even some of the special multilayer PCB have a similar layer circuit, also require separate the image phontosentive film. This point may confuse by most green PCB designers. The importance of aligning photosensitive […]
All photo film steps must in dark room The darkroom should be control temperature and humidity. Because those two factors related to the photo film performance, this means determine the reality of the image copper PCB board. Most of China multilayer PCB fabrications use a photoplotter transfer PCB circuit image. This kind image film is […]
Now most of multilayer rigid PCB manufacturing process through Automative machine operating. The laminate copper process also has this character. So this paper Emma wants to discuss the lamination process of multilayer rigid PCB. The prepare of the laminate copper process You know laminated copper process should use the press operator machine. The worker will […]
If you have read our image circuit layer article, either image outer circuit layer or image inner circuit layer process require in the yellow room. The yellow room, or named clean room. This paper Emma wants to focus on some important tips that Provos did not discuss during the inner circuit process. Only under the […]
Photoresist material introduces Photoresist material is a critial multilayer PCB material for multilayer rigid PCB Inner layer image process. In the outer layer imager article, we have mentioned this type raw PCB material. And in the clean room, the workers loaded the cleaned copper panel. Then skillfull coat with a thin layer of photosensitive film. […]
We have discussed how to image the outer layers, is it similar process in image inner layer circuit? Different flexible PCB engineers have differing opinions. This paper will focus on Top 4 common sense during image inner PCB. Only multilayer rigid PCBs have image inner layers process You know most PCBs were through a panel […]
This paper will discuss the inspection of inner layers. Many purchase doesn’t know the detail inspection process of inner layers. Of course, Emma also don’t want all guys go to research the technology of inspection of the inner layer. We want to more engineers or designers to know more the detailed inspection of inner layers. […]
We have introduced the prepare stack up of rigid PCB drill process, this paper, we will discuss some related factor of the drill rigid PCB process. First factor is the drill size of rigid PCB. Different hole size should choose differ stack up solution. The smaller diameter hole can stack up more panel PCB boards. […]