Ceramic substrate PCB board
Ceramic substrate refers to a special process board where copper foil is directly bonded to the surface (single-sided or double-sided) of alumina (Al2O3) or aluminum nitride (AlN) ceramic substrate at high temperature. The manufactured ultra-thin composite substrate has excellent electrical insulation properties, high thermal conductivity, excellent solderability and high adhesion strength, and can etch out various patterns like a PCB board, and has a large current carrying capacity. ability. Therefore, ceramic substrates have become the basic materials for high-power power electronic circuit structure technology and interconnection technology.
Strong mechanical stress, stable shape; high strength, high thermal conductivity, high insulation; strong binding force, anti-corrosion. Good thermal cycling performance, with 50,000 cycles, high reliability. Like PCB board (or IMS substrate), it can etch various graphic structures; no pollution and no pollution. The operating temperature is wide -55 ℃ ～ 850 ℃; the thermal expansion coefficient is close to silicon, which simplifies the production process of power modules.
High-power power semiconductor module; semiconductor refrigerator, electronic heater; RF power control circuit, power hybrid circuit. Intelligent power components; high-frequency switching power supplies, solid-state relays. Automotive electronics, aerospace and military electronic components. Solar panel components; telecommunication dedicated switches, receiving systems; lasers and other industrial electronics.
The introduction of ceramic substrate products has opened up the development of the heat dissipation application industry. Due to the heat dissipation characteristics of ceramic substrates, coupled with the advantages of high heat dissipation, low thermal resistance, long life, and withstand voltage of ceramic substrates, with the improvement of production technology and equipment, product prices have accelerated and rationalized , And then expand the application areas of the LED industry, such as the indicator lights of home appliances, car lights, street lights, and large outdoor signage. The successful development of ceramic substrates will also provide services for indoor lighting and outdoor lighting products, making the future market area of the LED industry wider.