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When you are looking for substrates for electronic circuits with a high thermal conductivity and a low expansion coefficient (CTE), ceramic PCB will be your preferred choice of material. Today ceramics are already widely used as substrates in many microelectronic components and power LED packages and more and more they are replacing entire printed circuit boards reducing complexity in design and manufacturing while increasing performance. Examples are Chip-on-board (COB) modules, High power circuits, proximity sensors, battery drivers for EVs,...etc.
Ceramics advantages over other printed circuit boards:
Alumina (Al2O3) is widely used because of its low cost. It is, however, a less good thermal conductor (24-28 W/mK) but still outperforms most IMS (metal core) PCB since it does not require a dielectric layer between circuits and core. If needed, thermal performance can be still enhanced using silver (Ag) filled vias. Boards are usually thicker (0.5mm-1.5mm). Aluminum Oxide can also be made transparent for special use if needed.
Aluminum Nitride (AlN) has far better thermal performance (> 150 W/mK) but is also more expensive. Also here thermal performance can be further improved by Ag or Au traces and vias.To maximally guarantee thermal performance and an optimal electric conductivity while reducing corrosion, Elite Advanced Technologies only uses Silver (Ag – 406 W/mK) for printing traces after which they will be covered with glass for protection. For high sulfur environments where silver corrosion can be an issue, we offer Gold plating as a solution to protect the exposed pads. Traditional PCB surface finishes like OSP or HASL cannot be used due to high sintering and operational temperatures.
Ceramic PCB advantages from GLOBAL PCB over other PCB suppliers
Ceramic PCB Capabilities
Start to quote and order from GLOBAL PCB now
GLOBAL PCB can produce your ceramic boards with the highest quality, either as prototype or as series.
You can discuss the selected materials and design for the construction and layout of your Ceramic PCB with us in the planning phase; we can assist you to work out the optimum solution!
If your design is finished, send us pls your design file with specs request to firstname.lastname@example.org.Our dedicated engineer and sales executive will contact and quote within 24hours quickly.