How To Make The Circuit Board High Temperature Resistant?
The use environment of the circuit board is relatively complicated, so there are many factors to consider when designing. So how does a circuit board factory achieve the high temperature resistance of the circuit board?
The ability of the circuit board to withstand high temperatures still depends on the material. First of all, the heat resistance of copper foil is the best material for the circuit board. The cover film and PI can also withstand temperatures of 280 degrees. In addition to the PET material, Can not withstand higher temperatures, FR4, PI and steel sheets, springs, etc. can withstand relatively high temperatures, and if the steel sheet is used as a reinforcing material, it will make the circuit board have good heat dissipation and enhance the resistance of the circuit board Thermal capacity.
From the perspective of the use of electronic products, the heat resistance of circuit boards is much stronger than the heat resistance of IC chips and capacitor resistors above. Therefore, the internal heat-resistant circuit boards of electronic products are okay. Many people say that the circuit boards are burnt out when their mobile phones or computers are broken. In fact, many of the components on the circuit boards are burned due to concentrated heat Yes, the heat resistance of circuit boards is produced in the range of tens of degrees below zero to 280 degrees. For circuit boards only, circuit boards produced using PI can exist for a certain period of time in a 200-degree environment, but at this time The solder used to assemble circuit parts is melting. In this environment, virtually all parts of the circuit board except the circuit board itself are no longer usable.
Even if the general circuit board is used outdoors, the temperature it can withstand will not be very high. The circuit board above the power battery will generate a higher temperature due to the heat concentration, but the protection board can withstand it. In working environments where the working environment temperature is higher, in addition to using heat-dissipating tools, circuit boards made of aluminum can also be used. Therefore, the temperature that the circuit board can withstand is determined by the manufacturing materials, and the entire circuit board is determined by the fixed parts on it.
Therefore, the circuit board factory's high temperature resistance of the circuit board is mainly based on materials to ensure that the circuit board can adapt to harsh environments.
