The application of circuit boards is very wide, from office equipment: such as calculators, digital cameras, radios; to household equipment: air conditioners, refrigerators, stereos; to industrial equipment: GPS, automobiles, instrumentation, medical equipment... you can say circuits The board is in every corner around us. The identification of the components on the circuit board is one [...]
Triple proof paint is a specially formulated coating used to protect circuit boards and related equipment from environmental erosion. Three anti - paint has good resistance to high and low temperature; After curing, it forms a transparent protective film, which can protect the circuit from damage in the case of chemical substances (e.g. fuel, coolant, [...]
applications This kind of packaging has its own unique characteristics, so in some electronic circuits will be applied, such as MP3 player, electronic organ, digital camera, game console, etc. Some low-cost circuits also use this type of package. In fact, COB soft packaging is not limited to chips, but is also widely used in LED. [...]
Circuit board Circuit board it is more common in our daily life, electronic appliances products have, but its products are different circuit board specifications and sizes are not the same, generally speaking, it is divided according to the number of layers of words into single panel, double panel, multilayer board three categories. Multilayer Pcb Nowadays, [...]
As the PCB surface welding type to lead-free conversion, circuit board welding temperature rise under ultra-high, thermal shock resistance of the surface resistance welding layer demand is higher and higher, to end surface treatment and resistance welding layer (film) ink, cover of peel strength, and the adhesion strength of the base copper demand is higher [...]
In recent years, SMOBC method and graphic electroplating method are two typical processes for the manufacture of double face metallized printed circuit boards. Process traverse method is also used in some specific situations. 1. Graphic plating process flow Foil sheet -- -- -- -- > > cutting benchmark percussive drill hole -- -- > CNC [...]
Printed circuit board (PCB) is a key element of product success. For electronic equipment, PCB is essential - by using circuits and copper wiring to connect different components to each other, PCB gives the equipment a long life. These factors are influenced by physical plate constraints such as size, material, layer and plane, and connectivity. [...]
In recent years, 3D X-ray fluoroscopy imaging and detection technology has been rapidly developed and gradually developed into a necessary detection method for the manufacturing industry of highly integrated electronic devices. Three-dimensional perspective X-ray imaging detection technology compared with traditional 2 d imaging X-ray detection of X - RAY, it can reproduce the measured all-round [...]
Buried, blind, through - hole technology buried, blind, through - hole combination technology is also an important way to improve the printed circuit density. In general, buried and blind holes are tiny holes. In addition to increasing the number of wiring on the board, buried and blind holes are interlayer interconnection with "nearest", which greatly [...]
PCB, which is a printed circuit board, is often referred to as a hard board. It is the supporting body of electronic components and is a very important electronic component. PCB generally USES FR4 as the base material, also known as hard board, can not be bent, flexure. PCB is generally used in some places [...]