Quomon.esRespuesta
Esta pregunta todavía no ha sido respondida.
High Hardness Ceramic PCB Board with Material Alumina Resist High Temperature With High Quality
High Hardness Ceramic PCB Board with Material Alumina Resist High Temperature With High Quality
Ceramic PCB board is also called ceramic substrate or ceramic circuit board, ceramic copper coated plate, ceramic substrate refers to the copper foil directly bonded to alumina (Al2O3) or aluminum nitride (AlN) ceramic substrate or other ceramic substrate surface (single or double) on the special process board. The ultrathin composite substrate has excellent electrical insulation performance, high thermal conductivity, excellent soft brazing and high adhesion strength, and can be etched into a variety of graphics like PCB board, with great current-carrying capacity. Therefore, Ceramic PCB board has become the basic material of high power electronic circuit structure technology and interconnection technology.
Ceramic PCB Manufacturing & Assembly – One-stop service The ceramic substrate (ceramic PCB) refers to a special process board in which a copper foil is directly bonded to a surface of an alumina (Al2O3 ) or aluminum nitride (AlN) ceramic substrate (single or double-sided) at a high temperature. The ultra-thin composite substrate produced has excellent electrical insulation properties, high thermal conductivity, excellent solderability, and high adhesion strength, and can etch various patterns like a PCB board, and has a large current carrying current ability.
Three materials of ceramic substrate
Al2O3
Al2O3 is the most commonly used substrate material in ceramic substrate because of its high strength and chemical stability compared to most other oxide ceramics in mechanical, thermal and electrical properties, and rich raw material sources, suitable for a variety of technical manufacturing and different shapes. According to the percentage of alumina (Al2O3) can be divided into: 75 porcelain, 96 porcelain, 99.5 porcelain. With different amounts of alumina, its electrical properties are almost unaffected, but its mechanical properties and thermal conductivity vary greatly. There is more glass in the substrate with low purity and the surface roughness is large. The higher the purity of the substrate, the cleaner, compact, the lower the dielectric loss, but the higher the price.
BeO
It has higher thermal conductivity than aluminum. It is applied to the occasions where high thermal conductivity is needed. It decreases rapidly after the temperature exceeds 300℃, but its toxicity limits its own development.
AlN
AlN are ceramics with aluminum nitride powder as the main crystalline phase. Compared with alumina ceramic substrate, the insulation resistance, insulation resistance and dielectric constant are higher. Its thermal conductivity is 7~10 times that of Al2O3, and its thermal expansion coefficient (CTE) is approximately matched with silicon wafer, which is very important for high-power semiconductor chips. In the production process, the thermal conductivity of AlN is greatly affected by the content of residual oxygen impurities, and the decrease of oxygen content can significantly improve the thermal conductivity. At present, it is no problem that the thermal conductivity of the production level reaches 170W/ (m·K).
For the above reasons, it can be known that alumina ceramics are in a leading position in the fields of microelectronics, power electronics, hybrid microelectronics and power modules due to their superior comprehensive performance. Compared with the same size on the market (100mm×100mm×1mm), different materials of ceramic substrate price: 96% alumina 9.5 yuan, 99% alumina 18 yuan, aluminum nitride 150 yuan, beryllium oxide 650 yuan, you can see that different substrate price gap is also relatively large.
Hitech Circuits is a professional and reliable manufacturer of Ceramic PCBs, with many years of experience in making Ceramic PCBs, which enables the manufacture of high technology, high quality and difficult performance boards, and guarantees the quality and reliability of every product delivered to customers. If you have the need to make Ceramic PCB, welcome to contact us!
For more, please visit at https://www.hitechpcba.com/ceramic-pcb.
Status:
Abierta ago. 27, 2026 - 19:55
¿Tiene la misma pregunta? Siga esta pregunta
0
Comparta su propia experiencia y conocimientos
Buscamos asegurarnos de que cada pregunta sea respondida por las mejores personas con conocimientos y experiencia relevantes; las mejores respuestas incluyen múltiples perspectivas. ¿Tiene conocimientos o experiencia relevantes para contribuir con su respuesta a alguna de estas preguntas frecuentes?
Añadir Nuevo Comentario