Looking at the current mobile phone brands, anyone who can develop their own chips can develop their own baseband. Only apple develops its own chips, but baseband needs to rely on a third party. Many people don't understand that Apple has developed mobile phones for more than ten years, and even the most difficult CPU [...]
Common devices on the circuit board include: resistance, capacitance, diode, triode, thyristor, touch switch, liquid crystal, light emitting diode, buzzer, various sensors, chips, relays, etc. Moreover, electronic components have different packaging types. The shapes of different types of components are the same, but the internal structure and uses are very different. For example, the components [...]
Technological advances drive us to create systems that interact with the environment and then make appropriate decisions. This level of automation requires powerful hardware, which is particularly suitable for sending and receiving signals from the surrounding environment. Radar PCBA is the key hardware of this work because they help detect objects or find targets. There's [...]
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1、 Solder paste stage 1.1 solder paste Solder paste (or solder paste) is the key material for welding. As Wikipedia, it is a material used in printed circuit board manufacturing to connect surface mount components to pads on the board " The paste is initially viscous. After heating, it is pasted on the components on [...]
The stability of multi-layer PCB material standard is the primary factor affecting the positioning accuracy of the inner layer. It is also necessary to consider the influence of the thermal expansion coefficient of substrate and copper foil on the inner layer of Multilayer PCB. From the analysis of the physical properties of the substrate used, [...]
Modern has very high requirements for electrical appliances and electronics. It must be safe to use, otherwise it cannot enter the market in large quantities. In order to avoid power connection between circuit board and circuit, circuit board potting adhesive is generally used for potting. The potted circuit board is wrapped by adhesive layer, which [...]
Sometimes customers often wonder what the process flow of PCB is, and even some peers who are new to the industry are confused. When making an inquiry, customers often say that the board is very simple, and you can tell the price. In fact, the process of PCB depends on the number of layers, vias, [...]
There are several real reasons: 1. Most importantly, in the UV exposure process of solder resist layer, the pigment needs to not absorb ultraviolet light as much as possible. The selection of pigments with stable high temperature performance, good affinity with solvents and meeting various electrical specifications is limited. Green, blue and red solder resist [...]
With the rapid development of large-scale infrastructure and industrialization in China, the output and consumption of aluminum profiles have increased rapidly. Now it has become a world-class aluminum profile production base and consumer market. China's industrial aluminum profiles account for about 30% of the total application of aluminum profiles, which are mainly used in automobile [...]