LED aluminum substrates are mainly used in fields such as STK series power amplifier hybrid integrated circuits, motorcycles, and automotive electronics. The gap in China started with the development of aluminum substrates by the state-owned factory 704 in the late 1980s, and soon commercialized products were introduced. At that time, it was mainly used in STK series power amplifier hybrid integrated circuits, motorcycles, and automotive electronics, and made contributions to the development of related industries. After nearly 20 years of development, the development of aluminum substrates in China has entered a rapid development track. According to relevant data statistics, there are currently nearly 200000 domestic enterprises engaged in the production of aluminum substrates.