Light-Blocking Black Aluminum Oxide Substrate Al2O3 Alumina Ceramic Plate

• Customization: Available
• Application: Electronic Devices, Lighting, Power Supply, Semiconductors
• Material: Al2O3
• Model NO.: Customized and standard optional
• Product Name: Alumina Ceramic Substrate
• Purity of Material: 96%, 99% Alumina
• Available Color: White, Ivory, Pink, Black
• Min. Thickness: 0.10mm
• Max. Thickness: 30mm
• Feature: High Insulation Strength
• Type: Ceramic Substrate
• Transport Package: Individual Packaging
• Specification: Max. 600mm x 500mm
• Trademark: JingHui
• Origin: China
• HS Code: 8547100000
• Production Capacity: 50000 PCS/Month
• Package Size: 19.00cm * 10.00cm * 12.00cm
• Package Gross Weight: 3.000kg

Product Description

Light-blocking Black Aluminum Oxide Substrate Al2O3 Alumina Ceramic Plate

Product Description

Aluminum oxide possesses excellent electrical insulation, mechanical strength, thermal conductivity, and chemical stability, therefore,  an important use of aluminum oxide is to be packaging ceramics of semiconductor devices. 

Due to semiconductor devices are always suffering from heat problems during use, heat dissipation is required, meanwhile, devices also need to resist external mechanical forces as well as need to withstand the test of harsh environments. Therefore, alumina is often used as an ideal material for manufacturing circuit boards.

When the aluminum oxide substrate is relatively thin, it shows a certain degree of light transmission, which is unfavorable for some semiconductor devices that are sensitive to light or radiation, and black substrate has the effect of light absorption or light shielding. Another reason for processing it black is because the black alumina substrate can hide the conductive lines embedded in it, such as black tungsten electrodes.
 

The specification

96% Al2O3 Ceramic Plate
Thickness (mm)	Maximum Size (mm)			Shape			Molding Technique
	As Fired	Lapped	Polished	Rectangular	Square	Round
0.25	120	114.3	114.3		√		Tape Casting
0.30	120	114.3	114.3		√		Tape Casting
0.38	140×190			√			Tape Casting
0.50	140×190			√			Tape Casting
0.635	140×190			√			Tape Casting
0.76	130×140			√			Tape Casting
0.80	130×140			√			Tape Casting
0.89	130×140			√			Tape Casting
1	280×240			√			Tape Casting
1.50	165×210			√			Tape Casting
2	500×500			√			Tape Casting
Other special thicknesses within the thickness range of 0.1-2.0mm can be achieved by lapping.

 

99.6% Al2O3 Ceramic Plate
Thickness (mm)	Maximum Size (mm)			Shape			Molding Technique
	As Fired	Lapped	Polished	Rectangular	Square	Round
0.1-0.2		50.8	50.8		√	√	Tape Casting
0.25		114.3	114.3		√		Tape Casting
0.38	120	114.3	114.3		√		Tape Casting
0.50	120	114.3	114.3		√		Tape Casting
0.635	120	114.3	114.3		√		Tape Casting
Other special thicknesses within the thickness range of 0.1-0.635mm can be achieved by lapping.

Typical Applications

Remark:
Alumina ceramic plates are widely used in power modules, LED lighting, power semiconductor, automotive electronics, and DBC ceramic substrates.

We also produce

Remark:
We not only make common square and rectangular ceramic substrate, but also round thin ceramic wafer, pink & black ceramic substrate. Moreover, we produce ceramic substrate in both aluminum nitride and silicon nitirde.

Certifications

Remark:
We are a ISO9001 enterprise, all manufacturing processes are strictly carried out per the quality management system before shipping.

FAQ

Q1: What sizes are available for the Alumina substrates?
A: The typical largest size available is 280x240mm. Maximum standard thickness is 1.27mm and up to 2.0mm thicknesses are available per request. We offer customized products for special requirements.

Q2: What are the main advantages of a Ceramic PCB?
A: Maximum operating temperatures of the substrates of over 800°C, high Thermal Conductivity of up to 180W/mK, very low CTE (Coefficient of Thermal Expansion), 0% water absorption for Hermetic packages, low signal loss and fine microcircuit applications with the DPC production method.

Q3: What is the via diameter available for Alumina substrates?
A: Round vias with diameters of 0.2mm are available. Square holes and special shape holes are also available per request. Please contact us for details.

Q4:How are the ceramic substrates machined?
A: We use 100% laser processes. This is the best way to ensure precise and clean milling and drilling of the ceramic.