• f
  • t
  • g
  • y
  • in
Technical Ceramics

LOADING IMAGES

Al2O3 Aluminum Oxide Alumina Ceramic Substrates

Alumina Substrate has well-balanced properties of insulation, thermal conductivity and breaking strength. ... Physical and chemical properties are stable even under a hot environment. Excellent in thermal shock resistance. High thermal conductivity and coefficient of thermal expansion similar to that of silicon.
  • Material

    96% Alumina
  • Color

    White
  • Density

    3.70 g/cm3
  • Thermal Conductivity

    > 25 W/m.K
  • Max. Service Temperature

    1200 degree C
Inquiry now
Product Detail

● Description of Alumina Substrates

With the development of electronic equipment, the power is getting higher and higher and the element is getting smaller and smaller, so the requirements for thermal conductivity are getting higher and higher, the previous thermal insulation materials have been more and more unable to meet the demand. In this case, alumina ceramic substrate as a high thermal conductivity and high insulation ceramic material, with 25W/m.k thermal conductivity and 17KV dielectric strength, has become a more and more popular substrate choice of many high-power equipment, compared to the silicon sheet substrate with thermal conductivity only 0.6W/m.k, and the dielectric strength of alumina Al2O3 substrate is also only 2KV. 

Relying on exceptional performance and very high price/performance ratio, the application of alumina substrate has become wider and wider. As we all know, ceramic is fragile, but our company relies on advanced equipment and many years of production experience, the strength of the production of tape casting alumina substrates on the original basis of the strength greatly improved! Our alumina substrates are made of 96% Al2O3 ceramic, the feaures of our products are as below.


 √ Small Dielectric Constant
 √ Good Thermal Conductivity
 √ Good Smoothness / Flatness
 √ Excellent in Electrical Insulation
 √ Low Thermal Expansion Coefficient
 √ Good in Thermal Shock Resistance
 √ Excellent resistance against oil  /  acid /  alkali
 √ Various Specifications in Stock & Fast Delivery


● Material Properties of Aluminum Oxide Substrates

ITEM
UNIT
Alumina | A960
Main Content
- Al2O3 > 96%  
Density
g/cm3
> 3.7
Color
- White
Water Absorption
%
0
Warpage
-
< 2‰
Standard Surface Roughness (Ra)
um
0.2 - 0.7
Flexural Strength
Mpa
380
Thermal Conductivity (25 °C)
W/m.K
> 25
Thermal Expansion Coefficient (25 - 300 °C)
10-6 mm/°C
6.5 - 7.5
Thermal Expansion Coefficient (300 - 800 °C)
10-6 mm/°C
6.5 - 8.0
Max. Working Temperature
°C
1,200
Dielectric Strength
KV/㎜
> 17
Dielectric Constant
1 MHz
9 - 10
Electrical Resistivity (25 °C)
Ω·cm
> 1014
∆ The data is offered for reference only, exact data will vary depending on producing method & part configuration.


● Applications of Alumina Ceramic Substrates

 ◆ LED packages
 ◆ Power modules
 ◆ Wafer bonding
 ◆ Heat dissipation substrate
 ◆ Substrate for chip resistors
 ◆ HIC substrate/plate for heat dissipation
 ◆ FAX substrates for thermal printer head
 ◆ ...




Request a free quote

If you have questions or suggestions, please leave us a message,we will reply you as soon as we can!

Hot Products
  • boron nitride nozzle

    Boron Nitride Ceramic Nozzle For Metal Powder Gas Atomization

    BN-2300, one of hexagonal boron nitride based composite, is an ideal materials for an atomizer nozzle, thanks to its high strength, high melting point, high toughness, outstanding thermal shock resistance, excellent machinability and low-friction properties. BN-2300 nozzles for the atomizing process can ensure a continuous flow with no blockage or breakage happening at that level.

  • Ceramic Grinding Media

    Ceramic Grinding Media Balls Beads

    Ceramic grinding balls have been extensively used in high-speed milling applications for blending, grinding, and dispersing. Additionally, ceramic balls and beads are used as abrasive media for ceramic raw materials and glazes in ceramic factories, cement factories, enamel factories, and glass work due to their superior density, stiffness, and wear efficiency.

  • Alumina Ceramics

    Alumina Ceramic Parts

    Alumina parts are made of aluminum oxide, which is one of the most important and versatile materials in the field of oxide ceramics. This material therefore used in a wide range of applications. The alumina ceramic from UNIPRETEC has a Al2O3 purity up to 99.8%. Due to the fine structure of the material and its high surface quality, an unsurpassable combination of properties can be achieved.

  • Ceramic Welding Roll

    Ceramic Si3N4 Welding Rolls for Steel Tube Industry

    silicon nitride ceramics is an inorganic non-metallic material. It is a super-hard material, which has lubricity and is wear-resistant; except for hydrofluoric acid, it does not react with other inorganic acids. It is highly corrosive and resistant to oxidation at high temperatures. Moreover, it can resist high thermal shocks. It will not crack when heated to over 1,000°C in the air, cooled rapidly and then heated rapidly. Because of the excellent characteristics of Si3N4 ceramics, it’s often used to manufacture bearings, turbine blades, mechanical seal rings, permanent molds and other mechanical components. In the field of welding of copper stainless, and aluminum tubes, silicon nitride ceramic rolls have natural advantages.

  • boron nitride setters

    Ceramic Boron Nitride Setters for Nitride Ceramics Sintering

    Boron Nitride can be compared to graphite thanks to lubrication capacities, good thermal conduction and easy machinability, although it's white and has good electrical insulation. Plus, it isn't wetted by most molten metals and can therefore be used as a container for most molten metals.

  • Alumina ceramic sintering aid for MIM

    High Purity Alumina Ceramic Sintering Aid for MIM Components

    Ceramic kiln furniture has two basic properties - firstly dimensional stability at high temperatures and secondly thermal shock resistance. UNIPRETEC is professional manufacturer of High Purity Alumina Ceramic Kiln Furniture(Trays, Setter Plates, Saggers).

Related products
Aluminum Nitride Substrates
High Thermal Conductivity AlN Aluminum Nitride Ceramic Substrate
High thermal conductivity and excellent electrical insulation are the two main properties of AlN Ceramic. Aluminum Nitride substrates are typically used in heat dissipation substrate, LED package, power module, wafer bonding, power resistor...
Alumina Ceramic Substrates
96% and 99% Al2O3 Alumina Ceramic Substrates Sheets Plates
Alumina Substrates/Sheets/Plates are made by tape casting and dry pressing. General purity degrees of Al2O3 Substrates/Sheets/Plates are 96%, 99% and 99.5%. Purity 96% Alumina Ceramic is the most choice.
aluminum nitride substrates
AlN Aluminum Nitride Ceramic Substrates Sheets Plates
Aluminum Nitride (AlN) has excellent electrical insulation and high thermal conductivity, is thus considered as high performance electronic packaging material. UNIPRETEC offers a series of substrates based on AlN materials for use in various application environments.
Ceramic Substrates
AlN and Al2O3 Ceramic Substrates
The ceramic materials for substrates are characterized by their extremely high strength and thermal conductivity. The outstanding surface quality on both sides makes it the perfect companion for any commercial thick film paste and even makes them suitable for a number of thin film applications (sputtering).
alumina ceramic cylindrical crucible dish cup
Alumina Ceramic Cylindrical Crucible Dish Cup for Molten Metals
Alumina Ceramic is a high-grade ceramic material that is ideal for laboratory applications. It is well balanced and physically stable. In addition, this fine ceramic offers exceptional chemical and corrosion resistance, high hardness, strength, and durability, superb wear resistance and high resistance to alkalies and other fluxes.
aluminum nitride insulator
AlN Aluminum Nitride Ceramic Insulators
AlN has excellent electrical insulation and high thermal conductivity, is thus considered as high performance electronic packaging material. UNIPRETEC offers a series of substrates based on AlN materials for use in application environments.
silicon nitride sleeve
GPSN Si3N4 Silicon Nitride Ceramic Sleeves
Silicon Nitrides (Si3N4) feature an excellent combination of material properties. They are nearly as light as silicon carbide (SiC), but their microstructure gives them excellent thermal shock resistance and their high fracture toughness makes them resistant to impacts and shocks.
boron nitride setter plate
High Purity BN Boron Nitride Setter Plate for Sintering Silicon Nitride Substrate
Boron Nitride can be compared to graphite thanks to lubrication capacities, good thermal conduction and easy machinability, although it's white and has good electrical insulation. Plus, it isn't wetted by most molten metals and can therefore be used as a container for most molten metals.
our Partners
Customer CTS
Customer ERAMET
Partner Magna
Customer INDO-MIM
Partner Knowles Electronics
MARTOR
PARTNER FUZHOU UNIVERSITY
Customer HealthCap
PARTNER TSINGHUA UNIVERSITY
chat now
If you have questions or suggestions, please leave us a message,we will reply you as soon as we can!
   

Online Service