Home Companies Yixing Minghao Special Ceramic Technology Co., Ltd.

95% Copper Coated DBC Direct Bonded Copper Substrate Ceramic Substrate With Gold-Plated

Contact Us

[China]

Trade Verify

Address: Dashu Industry Park, Nanyuan Village, Yichen Subdistrict, Yixing City, 214225, Jiangsu Province, China

Contact name:LU

Yixing Minghao Special Ceramic Technology Co., Ltd.

Verified Suppliers

Trust
Seal
Verified
Supplier
Credit
Check
Capability
Assessment

95% Copper Coated DBC Direct Bonded Copper Substrate Ceramic Substrate With Gold-Plated

Country/Region	china
City & Province	jiangsu
Categories	Welding Tips

Product Details

Copper coated DBC ceramics substrate with Gold-plated

Direct bonded copper (DBC) substrates are commonly used in power modules, because of their very good thermal conductivity. They are composed of a ceramic tile (commonly alumina) with a sheet of copper bonded to one or both sides by a high-temperature oxidation process (the copper and substrate are heated to a carefully controlled temperature in an atmosphere of nitrogen containing about 30 ppm of oxygen; under these conditions, a copper-oxygen eutectic forms which bonds successfully both to copper and the oxides used as substrates). The top copper layer can be preformed prior to firing or chemically etched using printed circuit board technology to form an electrical circuit, while the bottom copper layer is usually kept plain. The substrate is attached to a heat spreader by soldering the bottom copper layer to it.

1. Thickness of substrate can be thin: 0.25mm,0.28mm,0.45mm,0.5mm,0.635mm,1.0mm,1.5mm, 1.8mm,2.0mm
2. Coating by Cu ,Mo/Mn,Ag, Plate with copper
3. Excellent thermal conductivity
4. High electrical insulation

Properties	Unit	Steatite ceramic	95% Al2O3	99% Al2O3	Zirconia Ceramic
Density	g/cm³	2.8	3.6	3.8	5.6
Flexural strength	Mpa	145	300	300	354
Max Working Temperature	℃	1100	1400	1600	1400
Sintering temperature	℃	1350	1700	1750	1550
Heat resistance	T(℃)	200	220	200	350
Hardness	Gpa	5.7	7	10.7	12.3
Elastic modulus	Gpa	120	275	320	205
Poissons ratio	-	0.21	0.22	0.22	0.30
Linear expansion coefficient	x 10^-6/℃	7.9	7.1	7.8	9
Insulation breakdown Intensity	KT/mm	10	16	18	15
Thermal conductivity	w/(m.k)	2.5	20	25	2.5
Specific Heat	10^-3J/(kgK)	0.75	0.78	0.78	0.4

Hot Products

3.6g/Cm3 95 Ceramic Parts Ring High Insulation Heat Resistant Alumina Ceramic Ring

Contact Us

Yixing Minghao Special Ceramic Technology Co., Ltd.

95% Copper Coated DBC Direct Bonded Copper Substrate Ceramic Substrate With Gold-Plated

Product Details

Hot Products

3.6g/Cm3 95 Ceramic Parts Ring High Insulation Heat Resistant Alumina Ceramic Ring

Al2O3 16KT/Mm 95 Alumina Ceramic Material Spacer Sealing Ring

95% Al2o3 Ceramic Substrate Washers High Temperature Resistanc Ceramic Coated Screws

3.6g/Cm3 95 Alumina Ceramic White Ceramic Screw Insulators Hex Head

95% Copper Coated DBC Direct Bonded Copper Substrate Ceramic Substrate With Gold-Plated

Mechanical Strength 95 Alumina Ceramic AL2O3 Alumina Screws Bolt Rod