Professional ceramic pcb manufacturer in China Shenzhen
We Hitech Circuits are a professional ceramic pcb manufacturer, supplier from China, we mainly supply high quality Alumina (Al2O3) Ceramic PCB, Aluminum Nitride (AIN) Ceramic PCB board and IGBT Ceramic PCB. Our ceramic printed circuit boards features of high pressure, high insulation, high temperature, and high reliable and minor volume electronic products, Hitech is your best choice for ceramic PCB boards and needs.
What is ceramic pcb board?
Ceramic pcb boards are actually made of electronic ceramics as the basic material and can be made in various shapes. Among them, the characteristics of high temperature resistance and high electrical insulation of ceramic circuit boards are the most prominent. The advantages of low dielectric constant and dielectric loss, high thermal conductivity, good chemical stability, and similar thermal expansion coefficient to components are also very significant.
Different types of ceramic pcb
Ceramic PCB is widely used in power electronics, electronic packaging, hybrid microelectronics and multi-chip modules due to its excellent thermal conductivity and air tightness. But not everyone is clear about the classification. Many manufacturers think ceramic PCBs are expensive and fragile as soon as they hear about ceramic PCBs. Yes, this is indeed a shortcoming of ceramic PCBs, but not all ceramic PCBs are like this. Today we will tell you about the different types of ceramic PCBs.
Al2O3 ceramic PCB
Al2O3 ceramic PCB (alumina ceramic PCB) refers to various ceramic PCBs with Al2O3 as the main raw material and an Al2O3 content of more than 75%. It has a rich source of raw materials, with advantages of low price, high mechanical strength and hardness, good insulation performance, good heat shock resistance, good chemical resistance, high dimensional accuracy, and good adhesion to metals. It is a ceramic substrate material with good comprehensive performance. Currently used Al2O3 ceramic substrates, the content of Al2O3 accounts for 85% to 99.5%. Among them, 96% Al2O3 ceramic PCB is widely used in the production of thick film circuit substrates and chip devices. The thermal conductivity of Al2O3 at room temperature is 29W/(m·K), which is close to the thermal conductivity of steel; with the increase of Al2O3 content, the electrical insulation performance and thermal conductivity of Al2O3 ceramic PCB will increase, but At the same time, it will also lead to an increase in the firing temperature, an increase in energy consumption, a large loss of kiln furniture, and an increase in manufacturing costs.
AlN ceramic PCB
AlN ceramic PCB (aluminum nitride ceramic) is a new type of high thermal conductivity ceramic packaging material. It has been extensively studied in the 1990s and gradually developed. It is currently generally considered to be a promising electronic ceramic packaging PCB. AlN material has high thermal conductivity, excellent dielectric properties, high electrical insulation strength, stable chemical properties, strong corrosion resistance, and good mechanical properties. In particular, its thermal expansion coefficient matches with silicon, which makes it an ideal semiconductor packaging substrate material and have been widely used in integrated circuits, microwave power devices, millimeter-wave packaging, high-temperature electronic packaging and other fields.
Why Use ceramic Technology for PCBs?
Ceramic technology offers substantial advantages over boards made of regular materials. Some of the major advantages are.
High Thermal Conductivity-core metal content is 96-98%
Low Coefficient of Thermal Expansion higher reliability
High Surface Hardness higher durability and longer service life
High Compression Strength
High Dielectric Strength
Capability of withstanding higher temperatures
High Breakdown Voltage
No Water Absorption
Low loss at High Frequency
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https://hitechcircuits.com/pcb-products/ceramic-pcb/