The working environment of circuit boards is different, and their materials are required to be different. Some need to work in a low temperature environment, and some need to work in a high temperature environment. This requires that the circuit board materials should be selected according to the actual situation. Today, we will talk about what materials should be used for multilayer PCB circuit boards in a high temperature environment above 100 degrees.

The following is about the circuit board that needs to work at 150 ℃ for a long time. Can it meet the requirements?

When it comes to temperature, we will talk about the selection of Tg value in PCB. First of all, it is Tg value. Tg value refers to the glass transition temperature of CORE. You can understand it as the softening temperature of the board Graded, TG150 of TG in ordinary TG130 is higher than TG170 of TG, and Tg values of FR-4 glass fiber plate used at different temperatures are different, such as:

About 130-140 ℃, the Tg value of common FR-4 glass fiber plate can be used.

The temperature is about 170 ℃, which can use the Tg value of the FR-4 high temperature stair. Generally, when working at this temperature for a long time, the circuit board factory will recommend using the Tg170 value, which has high stability

At the temperature of about 260 ℃, the Tg value of polyimide material shall be used.

With regard to the customer's proposal to work at 150 ℃ for a long time, the engineer of Zhongke Circuit Board Factory suggested that "to ensure the stability of the product, it is recommended to select the beneficial TG170 plate, which can withstand 150 ℃ for a long time"

The thickness of PCB multilayer board is increased according to customer requirements, and the thickness can be processed.