LED 的结温（p-n 结温度）是 LED 冷却最需要考虑的关键因素。如果该温度超过 LED 制造商建议的规定水平，LED 的使用寿命、强度和颜色都可能受到影响。
与大多数电子系统一样，LED 组装温度最高的位置是结点温度。许多热管理材料可用于控制这一温度，如热管或金属芯板，但每种材料都有自己的热阻。
理想情况下，没有任何一种热管理材料会成为散热的瓶颈，但最靠近热源的材料最为关键。
在这种类型的组件中，高性能热管理材料的应用对芯片连接材料、散热片和焊料最为关键，因为这些材料最靠近热源，对 p-n 结的散热影响最大。
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