PCB News - What are the specific applications of alumina ceramic substrates

What are the specific applications of alumina ceramic substrates

In PCB proofing, alumina ceramic substrates have been widely used in many industries. However, in specific applications, the thickness and specifications of each alumina ceramic substrate are different. What is the reason for this?

1. The thickness of the alumina ceramic substrate is determined by the function realized by the product
The thicker the alumina ceramic substrate, the better the strength and the stronger the pressure resistance, but the thermal conductivity is worse than the thinner; on the contrary, the thinner the alumina ceramic substrate, the strength and pressure resistance will not be as strong, but Thermal conductivity is stronger than thick ones. The thickness of the alumina ceramic substrate is generally 0.254mm, 0.385mm, and 1.0mm/2.0mm/3.0mm/4.0mm and so on.

2. The specifications and dimensions of the alumina ceramic substrate are also different
Generally, the alumina ceramic substrate is much smaller than the ordinary PCB board as a whole, and its size is generally not greater than 120mmX120mm, and those exceeding this size generally need to be customized. In addition, the size of the alumina ceramic substrate is not as large as possible. The main reason is that the substrate is made of ceramics. During the PCB proofing process, the plate is likely to be broken, resulting in a lot of waste.

3. The shape of the alumina ceramic substrate is different
Most of the alumina ceramic substrates are single and double panels, and the shapes are rectangular, square and round. In PCB proofing, according to the requirements of the process, some also need to make grooves on the ceramic substrate, do the dam process and so on.

The above is the explanation of the thickness specifications of alumina ceramic substrate shared by the editor. I hope you have more understanding of alumina ceramic substrate. In PCB proofing, ceramic substrates are special boards, which have higher technical requirements and are more expensive than ordinary PCB boards. iPCB is a high-tech manufacturing enterprise focusing on the development and production of high-precision PCBs. iPCB is happy to be your business partner. Our business goal is to become the most professional prototyping PCB manufacturer in the world. Mainly focus on microwave high frequency PCB, high frequency mixed pressure, ultra-high multi-layer IC testing, from 1+ to 6+ HDI, Anylayer HDI, IC Substrate, IC test board, rigid flexible PCB, ordinary multi-layer FR4 PCB, etc. Products are widely used in industry 4.0, communications, industrial control, digital, power, computers, automobiles, medical, aerospace, instrumentation, Internet of Things and other fields.