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CY2404​ Sapphire Crystal Substrate, Al2O3

Catalog No. CY2404
Size Dia.1’’x 0.5mm; Dia.2’ x 1mm; 10 x10 x0.5mm; 5×5×0.5mm
Purity ≥99.95%
Thickness 0.5mm; 1mm
Molecular Formula Al2O3
Crystal Class Hexagonal System

Sapphire Crystal Substrate Description

Sapphire Crystal SubstrateSapphire crystal substrate has good thermal characteristics, excellent electrical and dielectric properties, and is resistant to chemical corrosion. It is resistant to high temperatures, and has good thermal conductivity, high hardness, infrared transmission, and chemical stability. It is widely used in high-temperature resistant infrared window materials, III-V nitrides, and various epitaxial film substrate materials.

Sapphire Crystal Substrate Specifications

Crystal Class

Hexagonal system

Lattice Constants

a=4.785, c=12.991



Melting Point

2040 °C



Elastic Coefficient

C11= 495; C12=160; C33= 497; C44= 146; C13= 115; C14= 23 GPa

Thermal Conductivity

46.06 @ 0 oC, 25.12 @ 100 oC, 12.56 @ 400 oC ( W/(m.K) )

Thermal Expansion

7.5 x 10-6 /℃

Standard Orientation


Standard Size

 5x5mm, 10x10mm, Dia1"(25.4mm), Dia2"(50.8mm)

Or customized.

Standard Thickness

0.5mm, 1.0mm, 2.0mm, 5.0mm

Dielectric Constant

[email protected] 300K at A-axis [email protected] 300K at C-axis


Single side polished or Double side polished

Sapphire Crystal Substrate Applications

Sapphire Crystal Substrates are used in the following applications:

– Sapphire substrates: IR Detectors; microwave integrated circuits;
– Aerospace: withstand high heat, windows, countermeasures lamps;
– Medical: surgical systems, contact tips for various surgical laser applications, endoscope lenses;
– Watch industry.

Sapphire Crystal Substrate Packing


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