Analysis of Thermal Reliability Method of PCB
First, thermal analysis can help designers determine the electrical properties of the components on the board to help the designer determine whether the component or board will burn out due to high temperatures. Simple thermal analysis is only to calculate the average temperature of the circuit board, the complexity of the High Quality PCBs china will have a number of electronic devices to establish a transient model. The accuracy of the thermal analysis ultimately depends on the accuracy of the component power provided by the circuit board designer.
Weight and physical dimensions are important in many applications. If the actual power consumption of the components is small, the safety factor of the design may be too high, so that the design of the circuit board is based on the actual or non-conservative component power consumption Perform thermal analysis. In contrast (and more serious) is the thermal safety factor design is too low, that is, the actual operation of the component temperature than the analyst predicted to be higher, such problems generally by installing a cooling device or fan on the circuit board To cool to solve. These external accessories increase the cost, and extend the manufacturing time, adding fans to the design will also bring instability to the reliability of the factors, so the main circuit board instead of passive rather than passive cooling methods (such as natural convection, conduction and radiation Heat dissipation).
As long as you do the above two points, the reliability of Cheapest PCB makers china will be better.