High frequency Rogers PCB has many advantages. The best quality, better use conditions and functionality are the most obvious reasons, because other alternatives can hardly support such problems.
- High quality ensures low power loss
- Reduce dielectric failure
- Low moisture absorption
- Better management of heat energy
- Various values of dielectric constant
- Low exhaust volume, suitable for space application
- Advanced impedance control
- Suitable for RF circuit board
- Extremely reliable, can be used in major industries
- High frequency ensures that it is suitable for use in mobile networks and aerospace
Factors to consider when choosing Rogers materials
Although experienced Rogers PCB manufacturers will guide you to use the best Rogers substrates, it is important to know your application requirements. In addition, you can choose the right Rogers material based on a number of other factors:
Coefficient of thermal expansion:
According to the principle of material expansion when heated, PCB material will expand when exposed to a certain temperature. In general, they expand when the temperature exceeds the set glass transition temperature. The rate at which they expand above this temperature is called the coefficient of thermal expansion, expressed in parts per million (PPM).
Stable dielectric constant is very important, especially in high frequency applications. The dielectric constant is basically the amount of charge stored in the PCB material, and its higher value will lead to higher capacitance and increase the voltage through the PCB. The dielectric constant of Rogers 4350b is 3.66, so it is very suitable for microwave point-to-point link.
Ideally, the material should not absorb any moisture even when immersed in water; however, this is very unrealistic. However, it is important to minimize moisture absorption. The moisture absorption of most materials used for PCB is between 0.01% and 0.2%. Materials with low absorptivity will have better thermal and electrical properties.
The maximum and minimum temperature that PCB can bear should be determined according to the application, and the correct material should be used for corresponding design. If there is any possibility that the temperature will exceed its upper limit, there should be a reverse mechanism. Otherwise, PCB will decompose and lose a certain proportion of quality. For most applications, the ideal upper limit is 350 degrees Celsius. The decomposition temperature should be set outside this range.
Do you want to use Rogers material in PCB and need reliable Rogers PCB manufacturer to help you? If so, make sure you are in touch with reliable players with rich experience in designing and assembling complex PCBs. Twisted tracks is a famous Rogers PCB manufacturer, supplier and assembler with more than 30 years of experience. The company uses Rogers materials to make various types of PCs