Ceramic factory Alumina Al2O3 Ceramic substrate manufacturer from China

Alumina ceramic substrate

Ceramic substrate, also known as ceramic substrate, is a sheet-like material based on electronic ceramics that forms a support base for membrane circuit components and external bonding components. Ceramic substrate has the main advantages of high temperature resistance, high electrical insulation, low dielectric constant and dielectric loss, large thermal conductivity, good chemical stability, and thermal expansion coefficient similar to the component. However, the ceramic substrate is relatively brittle and made The substrate area is small and the cost is high.

The actual production, development and application of ceramic substrate materials include Al2O3, AlN, SiC, BeO, BN, zirconia and glass ceramics. Although the thermal conductivity of Al2O3 ceramic substrate is not high (20W/mK), it has become the most widely used ceramic substrate because of its relatively simple production process, low cost and low price .

Generally use tape casting method for producing an alumina ceramic substrate, 96% alumina ceramic substrate material is added to the mineral raw materials suitable as flux, calcination temperatures as low as 1580 ℃ ~ 1600 ℃, product density can be up to 3.75g /cm3 or more. For products with high dimensional accuracy requirements, after firing, laser processing methods can be used to scribe and punch holes on the substrate with an accuracy of ±0.05mm.

Purity : 98%,

Color: milky white

Size: within 100x100x1.0mm, can be cut according to customer requirements

Surface roughness: <0.01um (after polishing); <1um (blank)