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China Wholesale Red Pcb Quotes - 14 Layer High TG Fine Pitch PCB 14 – Huihe
About High Tg PCB The general TG is more than 130 degrees, the high Tg is more than 170 degrees, and the medium TG is more than 150 degrees. Generally, PCB with TG ≥ 170 ℃ is called high Tg PCB. When the Tg of the substrate is increased, the heat resistance, moisture resistance, chemical resistance, stability resistance and other characteristics of the circuit board will be improved. The higher the TG value, the better the temperature resistance of the sheet, especially in the lead-free ... -
China Wholesale Sensor Circuit Board Suppliers - 4 Layer FR4+Rogers PCB 29166 – Huihe
About High-frequency mixed-voltage PCB High-frequency mixed-voltage circuit boards are pressed using different laminated materials to optimize electrical performance and improve system reliability. The biggest challenge in manufacturing this type of high frequency PCB is to match the thermal expansion coefficient (CTE) of the different materials to fit the PCB manufacturing and component assembly. Typically, such circuit designs include a combination of FR-4 materials and PTFE laminated ... -
China Wholesale Digital Circuit Board Quotes - 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 Emc Pcb Suppliers - 6 Layer ENIG Impedance Control PCB 14706 – Huihe
Difference between pad and via 1. Definitions differ Pad: is the basic unit of surface mount assembly, which is used to form the landpattern of the circuit board, that is, a variety of combinations of pads designed for special component types. Through hole: through hole is also called metallization hole. In the double panel and multilayer PCB, a common hole is drilled at the junction of the wires that need to be connected between the layers in order to connect the printed wires between l... -
China Wholesale Flex Pcbs Quotes - 8 Layer High TG Impedance Control Fine Pitch PCB 16 – Huihe
Advantages of high Tg PCB 1. Higher stability: if the Tg of PCB is increased, it will automatically improve the heat resistance, chemical resistance, moisture resistance and device stability. 2.Withstand high power density design: if the device has high power density and fairly high calorific value, then high Tg PCB will be a good solution for heat management. 3.When reducing the heat generation of ordinary boards, larger printed circuit boards can be used to change the design and power ... -
China Wholesale Flexible Pcb Factories - 6 Layer ENIG Blind Vias PCB 27809 – Huihe
Features of the Blind Via Blind Vias are located on the top and bottom surfaces of the circuit board and have a certain depth for the connection between the surface circuit and the inner circuit below. The depth of the hole usually does not exceed a certain ratio (aperture). This way of production will need to pay special attention to the depth of the hole (the Z axis) to the right, do not pay attention to words will cause difficult hole plating so almost no factory used, can also be connecte... -
China Wholesale Pcb Pwb Suppliers - 16 Layer ENIG Press Fit Hole PCB 31525 – Huihe
About Via-In-Pad PCB The Via-In-Pad PCBs are generally blind holes, which are mainly used to connect the inner layer or the secondary outer layer of HDI PCB with the outer layer, so as to improve the electrical performance and reliability of electronic products, shorten the signal transmission wire, reduce the inductive reactance and capacitive reactance of the transmission line, as well as the internal and external electromagnetic interference. It’s used for conducting. The main problem... -
China Wholesale Panel Circuit Board Quotes - 4 Layer ENIG Blind Buried Via PCB – Huihe
About the HDI Due to the influence of drilling tool, the cost of traditional PCB drilling is very high when the drilling diameter reaches 0.15mm, and it is difficult to improve again. The drilling of HDI board no longer depends on the traditional mechanical drilling, but uses laser drilling technology. (so it is sometimes called laser plate.) The drilling hole diameter of HDI board is generally 3-5mil (0.076-0.127mm), and the line width is generally 3-4mil (0.076-0.10mm). The size of pad... -
China Wholesale Purple Circuit Board Quotes - 2 Layer High TG Heavy Copper PCB 11 – Huihe
About the heavy copper PCB Heavy copper PCB has the characteristics of carrying large current, reducing thermal strain and good heat dissipation. Increasing copper thickness has become an effective way for many terminal design manufacturers to seek solutions. There are more and more heavy copper PCB products, as a special product in product design, CCL production and PCB processing, there are many production difficulties and matters needing attention and solution. CCL is the raw material... -
China Wholesale Wifi Pcb Board Quotes - 6 Layer FR4+Rogers PCB 28727 – Huihe
Features of high frequency PCB 1. High frequency PCB with small dielectric constant, loss will be very small, and advanced induction heating technology can achieve the needs of the target heating, very high efficiency. Of course, while paying attention to efficiency, it also has the characteristics of environmental protection, which is very suitable for the development direction of today’s society. 2. The transmission speed is inversely proportional to the square root of the dielec...
