Long track and zigzag track will affect the signal quality, resulting in signal distortion and interference. In order to avoid this situation, it is necessary to avoid the occurrence of too long and too curved. For some lines that need to be bent, excessi
Easy to manage circuit board components For a large led circuit board, it has a lot of parts package, there are thousands of networks, very messy, the use of the class can be very convenient to manage the circuit board.
The method of baking board is: conditional PCB factory is to use a large oven baking board. Before putting into operation, a large stack of copper clad plates is sent into the oven, and the copper clad plates are baked for several hours to ten hours at a
The mobile power supply plays a role of small body and large function, which needs to be regulated by a special circuit through voltage conversion to achieve charging support for special products.
The frequency of the digital circuit is high, the sensitivity of the analog circuit is strong, for the signal line, the high-frequency signal line is as far away from the sensitive analog circuit device as possible, for the ground line, the whole PCB has
This process has become the mainstream process of cyanide-free copper plating and is widely used by domestic PCB manufacturers. Especially in plastic electroplating, indispensable. It is expected that in a long time, it is difficult to replace other coppe
Anti-static SMT loading and unloading rack has been introduced to you before, it is specially used for automatic loading machine, specifications and styles are generally universal.
Packaging refers to the circuit pin on the silicon chip, with a wire connection to the external junction, in order to connect with other devices. Package form refers to the housing used to install semiconductor integrated circuit chips.
Maintenance of spare printed circuit board. For the spare printed circuit board that has been purchased, it should be installed on the numerical control device regularly and run for a period of time to prevent damage;
In addition, the tool point and processing sequence are selected well, so that the frame can maintain the maximum strength and the fastest speed. The choice is not good, the frame is easy to deform and make the PCB scrapped.
In the deposition process, phosphorus is co-deposited with nickel into the coating, and the chemical precipitation of nickel is actually a chemical precipitation of nickel-phosphorus alloy.
In the PCB layout, the power decoupling circuit should be designed near the relevant circuits, rather than placed in the power supply part, otherwise it will affect the bypass effect, and will flow pulsating current on the power line and ground wire, caus
