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China Wholesale Sensor Circuit Board Pricelist - 10 Layer Impedance Control Resin Plugging PCB 3 – Huihe
The difference between electroplating plug hole and resin plug hole 1. Surface difference: The electroplating plug hole is filled by copper plating, and the inner surface of the hole is full of metal. The resin plug hole is filled with epoxy resin after copper plating on the hole wall, and finally copper plating on the resin surface. The effect is that the hole can be conducted, and there is no dent on the surface, which does not affect the welding. 2. The process is different Electroplating ... -
China Wholesale Silk Screen Printing Pcb Factories - 2 layer High TG ENIG PCB 11590 – Huihe
About High Tg material Tg is the mechanical property that specifies the glass transition temperature, the maximum temperature at which the glass remains rigid.Normal PCB FR4-TG is 130-140 degrees, medium TG is greater than 150-160 degrees, high TG is greater than 170 degrees. Compared with standard FR4, high FR4-TG has better mechanical and chemical heat resistance and moisture resistance.The higher the Tg value, the better the heat resistance of the material, so, especially in the lead-... -
China Wholesale Pcb Board Power Supply Factories - 4 Layer Rogers ENIG PCB 25770 – Huihe
Transmission line form in high frequency PCB design Both transmission lines and waveguides can be used as carriers for high frequency signal transmission, while microstrip lines and strip lines in TEM transmission lines and Substrate Integrated Waveguide in Waveguide structures are applied in the design of high frequency PCBs. High frequency PCB wiring skills The radiation intensity of the signal is proportional to the wiring length of the signal line. The longer the high-frequency ... -
China Wholesale Round Circuit Board Suppliers - 8 Layer FPC+FR4 Rigid-Flex PCB 8 – Huihe
Rigid-Flex PCB in consumer electronic products The first use of Rigid-Flex PCB in the field of battery modules, now look at all mobile phone brands around the world, the use of Rigid-Flex PCB battery has been a consensus, and may become a long-term trend. At the same time, in order to accommodate more lenses in smaller and smaller space, mobile phone lens module also began to use the Rigid-Flex PCB, in addition to gradually expanded to display and other mobile phone modules. As for the l... -
China Wholesale Multilayer Pcb Board Quotes - 6 Layer ENIG impedance half hole PCB – Huihe
About Metallized Half Hole PCB The metallized half hole is a half hole at the edge of the plate and is electroplated. Metallized semi-holes are mainly used for the direct connection between plates. They are mainly used to weld together two printed circuit boards with circuit design technology. The whole system takes up much less space than a PCB system using a row pin connector. Design parameters of half hole PCB Min. Hole Diameter Minimum pad Minimum pad spacing The distance betwee... -
China Wholesale Hitech Pcb Pricelist - 4 layer Medium TG ENIG PCB 13270 – Huihe
About High Tg PCB High Tg means high heat resistance. With the rapid development of the electronic industry, especially the electronic products represented by computers, the development of high functionalization and high multilayer requires the higher heat resistance of PCB substrate materials as an important guarantee. With the emergence and development of high density installation technology, such as SMT and CMT, PCB is increasingly dependent on the support of high heat resistance of t... -
China Wholesale Custom Printed Circuit Board Factories - 2 layer High TG ENIG PCB 11590 – Huihe
About High Tg material Tg is the mechanical property that specifies the glass transition temperature, the maximum temperature at which the glass remains rigid.Normal PCB FR4-TG is 130-140 degrees, medium TG is greater than 150-160 degrees, high TG is greater than 170 degrees. Compared with standard FR4, high FR4-TG has better mechanical and chemical heat resistance and moisture resistance.The higher the Tg value, the better the heat resistance of the material, so, especially in the lead-... -
China Wholesale High Current Pcb Manufacturers - 6 layer ENIG impedance control PCB 16403 – Huihe
About Multilayer PCB With the increasing complexity of circuit design, in order to increase the area of wiring, multilayer PCB can be used. Multilayer board is a PCB that contains multiple working layers. In addition to the top and bottom layers, it also includes signal layer, middle layer, internal power supply and ground layer. The number of layers of PCB represents that there are several independent wiring layers. Generally, the number of layers is even and includes the outermost two ... -
China Wholesale Pcb Prototype Services Factories - 8 Layer FPC+FR4 Rigid-Flex PCB – Huihe
The birth and development of FPC and PCB gave birth to the new product of Rigid-Flex PCB. Therefore, the combination of flexible PCB and Rigid PCB is a kind of circuit board with FPC characteristics and PCB characteristics, which is formed by combining flexible circuit board and Rigid circuit board together according to relevant process requirements through pressing and other processes. Because Rigid-Flex PCB is the combination of FPC and PCB, the production of FPC and PCB should be equipped ... -
China Wholesale Fast Pcb Prototyping Service Manufacturers - 6 Layer ENIG via-in-pad PCB 28203 – Huihe
Function of plug hole: The plug hole program of printed circuit board (PCB) is a process produced by the higher requirements of PCB manufacturing process and surface mount technology： 1.Avoid short circuit caused by tin penetrating through the component surface from the through hole during PCB over wave soldering 2.Avoid flux remaining in the through hole 3.Prevent solder bead from popping out during over wave soldering, resulting in short circuit 4.Prevent the surface solder paste from flow... -
China Wholesale Smt Boards Suppliers - 2 Layer in spray half hole PCB 14146 – Huihe
About metallizing half-hole PCB Metal half hole (groove) is a hole after the hole after the second drilling, shape process, and finally retain the metal hole (groove) half, simply said that the plate edge metallized hole cut half, the plate edge semi-metallic hole process is a very mature process. How to control the product quality after forming the semi-metallic hole on the edge of the plate. Such as hole wall copper prickle, residual has been a difficult process. A full row of semi-met... -
China Wholesale Sensor Circuit Board Factories - 4 Layer FPC+FR4 Rigid-Flex PCB 12 – Huihe
Advantages of Rigid-Flex PCB 1. It can effectively save the space on the PCB and the process of using the connector 2. Simplify product assembly and save assembly time 3. The distance of signal transmission is shortened and the speed is increased, which can effectively improve the reliability Application of the Rigid-Flex PCB 1.Medical electronics: applications for pacemakers, hand-held displays, cochlear implants, imaging devices, wireless controllers, drug delivery systems, etc. 2.Military ...
