LED interconnection and thermal management in reversed LED

LED interconnection and thermal management in reversed LED
　　1. Introduction

LED (light-emitting diode) as a semiconductor light-emitting device widely used in lighting, display, information display, and other fields, its performance improvement and application expansion depend on the continuous progress of materials, technology, design, and packaging technology. In recent years, reversed LED, due to its advantages in light extraction efficiency, heat dissipation efficiency, and optical performance, has gradually become an important research direction in the LED industry. This article will discuss the interconnection and thermal management of reversed LED, exploring its importance in the LED field and the application prospects of related technologies.

2. Interconnection technology of reversed LED

Interconnection methods

The interconnection methods of reversed LED mainly include direct interconnection, reversed interconnection, and metal interconnection. Among them, metal interconnection, due to its high electrical conductivity and low contact resistance, has become the most widely used interconnection method at present. Metal interconnection technology mainly includes copper interconnection, gold interconnection, and aluminum interconnection, among which copper interconnection is widely used in the interconnection of reversed LED due to its low cost and high reliability.

Interconnection materials

The selection of interconnection materials has an important impact on the performance of LED. Currently, commonly used interconnection materials include copper, aluminum, gold, and silver. Among them, copper interconnection, due to its low contact resistance, high electrical conductivity, and good thermal conductivity, has become the preferred choice for interconnection materials in reversed LED. However, copper interconnection is prone to oxidation at high temperatures, affecting the reliability and stability of interconnection, so antioxidant agents such as copper oxide and silver oxide need to be added to the interconnection materials.

3. Thermal management technology of reversed LED

The importance of thermal management
　　The interconnection method of reversed LED has an important impact on the heat dissipation performance of LED. Under high-temperature conditions, the interconnection materials of LED are prone to oxidation, resulting in increased contact resistance and affecting the light extraction efficiency and service life of LED. Therefore, thermal management technology is particularly important in reversed LED.

Thermal management technology

The thermal management technology of reversed LED mainly includes heat sinks, heat sinks, heat transfer films, and thermal grease. Among them, heat sinks, due to their large heat dissipation area and high heat dissipation efficiency, have become the most widely used heat dissipation method in thermal management of reversed LED. In addition, thermal grease, due to its good thermal conductivity and adhesion properties, is also widely used in the thermal management of reversed LED.

4. Summary

Reversed LED, due to its advantages in light extraction efficiency, heat dissipation efficiency, and optical performance, has gradually become an important research direction in the LED industry. Interconnection and thermal management technologies are crucial in reversed LED, and their performance improvement will have a profound impact on the performance and application of LED. In the future, with the continuous progress of interconnection and thermal management technologies, reversed LED will show a broader application prospect.