Aluminum Oxide Substrate

Aluminum Oxide Substrates are made of Alumina(Al2O3), which is a well-known and commonly used technical ceramic material. For decades, aluminum oxide ceramic was once used in electrical components due to its high electrical insulation. Because of its high strength, high corrosion resistance and high wear resistance, Al2O3 ceramic is widely used in every industry. Because alumina is a material with relatively balanced mechanical performance parameters, alumina has a wide range of applications, including wear-resistant products used in high-temperature industrial furnaces and various electronic components.

Advantages

* Low Communication Loss: the dielectric constant of the ceramic material itself makes the signal loss smaller.

* High Thermal Conductivity: the thermal conductivity of alumina oxide substrate is 20-30 W/mk. The heat on the chip is directly conducted to the ceramic sheet without an insulating layer, which can achieve relatively better heat dissipation.

* More Matching Thermal Expansion Coefficient: the material of the chip is generally Si (silicon) GaAS (gallium arsenide), and the thermal expansion coefficient of ceramic and chip is close, and it will not produce too much deformation when the temperature difference changes drastically, causing problems such as wire unsoldering and internal stress.

* High Bonding Strength: the bonding strength between the metal layer and the Al2O3 substrate is high, and the maximum can reach 45MPa (more than 1mm thick ceramic substrate itself).

* High Operating Temperature: Aluminum oxide ceramic substrate can withstand high and low temperature cycles with large fluctuations, and can even operate normally at high temperatures of 500-600 degrees.

* High Electrical Insulation: the ceramic material itself is an insulating material and can withstand a high breakdown voltage.

* Customized Service: UNIPRETEC can provide customized Al2O3 ceramic substrates according to customer needs, and mass-produce according to product design drawings and requirements given by users.

Material Properties(A960)

∆ The above data is offered for reference and comparison only, exact data will vary depending on manufacturing method and part configuration.

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