Direct Bonded Copper Dbc Ceramic Substrate

Direct Bonded Copper Dbc Ceramic Substrate

DBC(Direct Bonded Copper) is one of the main metallization for ceramic substrates. The copper foils can be directly bonded on single or double surfaces of ceramic substrates (alumina ceramic or aluminum nitride) without a middle layer, reducing the contact thermal resistance between the metal layer and the ceramic layer, getting better heat dissipcation capability. 

DBC substrates have not only the characteristics of high thermal conductivity, high electrical insulation, high mechanical strength, and low expansion of ceramics of ceramics, but also the high electrical conductivity and excellent soldering performance of oxygen-free copper, and can be carved into various graphics like a PCB circuit board. 

DBC substrates are widely applied in high-speed rail, automotive electronics, industrial electronics, communications, military, aerospace and other fields. Benefiting from the excellent current carrying capacity, voltage endurance capability and heat dissipation capacity, DBC substrates are generally used in areas with relatively large currents and large resistances, such as high-power modules and high-power devices.  

Feature of DBC Substrates

• High mechanical strength, mechanically stable shape;

• Excellent heat dissipation capability

• Excellent current carrying capacity

• Good electrical insulation

• Strong bonding strength between ceramic substrate and copper layer

• Much better thermal cycling capability (up to 50k cycles)

• Can be etched like PCB boards to get required graphics

• The process is simple, no need for MO-MN metallization process

Features of DBC VS DPC

Material Properties for Ceramic 96% Alumina Ceramic

Typical Application of DBC Substrates

• Power semiconductor modules; semiconductor refrigerator, electronic heating device, power control circuits, power hybrid circuits

• Smart power modules, high frequency switch, solid state relays

• Automobile electronics, military and aerospace electronics

• Solar panel assemblies, telecommunication exchange and receiving system, laswer electronics

Packing & Shipment

Why Choose Us

1. 10+ years experience in technical ceramics manufacturing and R&D

2.  ISO9001:2015 certificated quality control management system

3.  Different types of ceramic materials are provided for your different applications

4.  Products have been exported to 40+ countries and have good reputation from our customers

5. MOQ is low, both prototype and bulk order will keep high quality

6. Any of your inquiries or questions will be responded no longer than 24 hours

7. Rigorous production plan to ensure on-time delivery