How to solve the heat dissipation problem of electronic components

    With the development of integration technology and microelectronic packaging technology, the total power density of electronic components continues to grow, while the physical dimensions of electronic components and devices gradually tend to be small and miniaturized. The heat generated rapidly accumulates, leading to an increase in the heat flux density around integrated devices. Therefore, high-temperature environments will inevitably affect the performance of electronic components and devices, which requires more efficient thermal control solutions. Therefore, the issue of heat dissipation in electronic components has evolved into a major focus in the current manufacturing of electronic components and equipment.

    In response to this situation, engineers have come up with some thermal management strategies: for example, improving heat dissipation capacity by increasing PCB thermal conductivity (high TC); A heat-resistant strategy that focuses on enabling materials and devices to withstand higher operating temperatures (high TD cracking temperature); It is necessary to understand the operating environment and the adaptability of materials to thermal cycling (low CTE). Another strategy is to use materials with higher efficiency, lower power, or lower losses to reduce heat generation.

    There are three general ways of heat dissipation, namely: thermal conduction, convection, and radiation heat transfer. So there are several commonly used thermal management methods: when designing circuit boards, intentionally increase the thickness of the heat dissipation copper foil or use a large area of power supply and ground copper foil; Use more thermal conductivity holes; Adopting metal heat dissipation, including heat dissipation plates and locally embedded copper blocks. Alternatively, during assembly, add a heat sink to high-power devices and a fan to the entire machine; Either use thermal conductive materials such as adhesive and grease; Alternatively, heat pipes, steam chamber radiators, high-efficiency radiators, etc. can be used for heat dissipation.

    The Shiqiang Intelligent Hardware Innovation Service Platform, launched in 2016, has gathered a complete solution to the cooling problem of electronic components, solved the pain points of enterprise engineers in innovation, and opened up the innovative service chain. More new technologies and solutions related to heat dissipation can be searched and downloaded on the Shiqiang Component E-commerce APP.