A typical manufacturer can only request it twice per production cycle, and only check it once every few months. IR testing in simulated batches also prevents more spills of defective products, which are a prerequisite for quality PCB factories. In additio
Compared with earlier standard ceramic materials, the new technology ceramics have improved durability, inertness and chemical properties. Even the physical properties have changed. Ceramic materials do not break down, soak or absorb moisture in large qua
Some customers have designed contour lines for Keep layer, Board layer, Top over layer and so on, and these contour lines do not coincide, which makes it difficult for pcb manufacturers to judge which contour line shall prevail.
Printed circuit board is a bridge that carries electronic components and connects circuits. It is widely used and is an indispensable electronic component in modern electronic information products.
In order to improve the technical performance of the printed circuit board, we must first improve the performance of the printed circuit substrate board, and ensure the demand for high density and fine wire, copper foil, laminated insulating dielectric sh
With the product is thin and short, the application of FPC is more and more, some of them replace the traditional PCB, as the electronic products become smaller and smaller, the connector of FPC is also getting smaller and smaller, although the FPC does n
How to choose PCBA factory to avoid pits :1, look at the professional PCBA processing plant, PCBA processing is different from the traditional SMT patch and DIP plug-in,2, look at the service awareness of PCBA processing plant, the docking staff of PCBA p
There are many ways to make printed boards under amateur conditions, each has its own characteristics. When painting, we should pay attention to the hand force to the proper weight, too heavy paint film is too thick, the line will run lace, too light line
The production process of soft and hard combined board has punching. Riveted. Laminate. Edge removal material. Drill holes. Remove glue residue. Copper sinking. PCB board surface plating. Outer dry film positive film production. Graphic plating. Alkaline
FPC circuit board is also called flexible circuit board Flexible circuit board is made of polyimide or polyester film as a substrate with a high degree of reliability, excellent flexibility of the printed circuit board. With high wiring density, light wei
PCB board is composed of copper foil, resin, glass fiber cloth and other materials. There are differences between the physical and chemical properties of various materials. In the process of processing, it will go through chemical drops, cold and thermal
The content of PCB circuit board metal is up to more than 40%, so there is a waste PCB recycling industry. Refining the metal in the circuit board, the remaining non-metallic waste powder, can also be used as an important filling material in polymer compo
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