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Hangzhou Freqcontrol Electronic Technology Ltd.
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4inch 0.5mm Sapphire Crystal Wafer Single Crystal C-Axis Epi-Ready

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Hangzhou Freqcontrol Electronic Technology Ltd.

City: hangzhou

Province/State:shanghai

Country/Region:china

Tel:86-571-85803723

Contact Person:
Mr.Xu
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4inch 0.5mm Sapphire Crystal Wafer Single Crystal C-Axis Epi-Ready

Brand Name BonTek
Model Number Sapphire (Al2O3)
Certification ISO:9001
Place of Origin China
Minimum Order Quantity 5 Pieces
Price Negotiable
Payment Terms T/T
Supply Ability 10000 pieces/Month
Delivery Time 1-4 weeks
Packaging Details Cassette, Jar, Film package
Material Sapphire Wafer
Type Single Crystal
Color White / Red / Blue
Growth Method Horizontally Directed Crystallization (HDC)
Surface Double side polish
VIS range 85%
Application Semicondutor Wafer, Led Chip, Optical Glass Window, Electronic Ceramics
Industry Led,optical Glass,eli-ready Wafer
Detailed Product Description

Horizontally Directed Crystallization Grown Sapphire Wafer 4inch 0.5mm C-Axis Epi-Ready

 

Single crystal sapphire Al2O3 possesses a unique combination of excellent optical, physical and chemical properties. The hardest of the oxide crystals, sapphire Al2O3 retains its high strength at high temperatures, has good thermal properties and excellent transparency. Sapphire Al2O3 optics is chemically resistant to many acids and alkalis at temperatures up to 1000 degrees C as well as to HF below 300 degrees C. These properties encourage its wide use of Sapphire Al2O3 optics in hostile environments where optical transmission in the range from the visible to the near infrared is required.

Now the majority of crystals are growing from liquid melt. The most suitable substances to grow crystal from a melt have to melt without decomposition, have no polymorphic transitions and are characterized by low chemical activity. The crystallization process from a melt is applied in the most widespread methods of monocrystalline sapphire growth: namely, the Horizontally Directed Crystallization (HDC) method and Stepanov's method.

 

 

OPTICAL PROPERTIES

Transmission

0.17 to 5.5 um

Refractive Index

1.75449 (o) 1.74663 (e) at 1.06 um

Reflection Loss

at 1.06 microns (2 surfaces) for o-ray - 11.7%; for e-ray - 14.2%

Absorption Index

0.3 x 10-3 cm-1 at 2.4 um

dN/dT

13.7 x 10-6 at 5.4 um

dn/dm = 0

1.5 um

 

PHYSICAL PROPERTIES

Density

3.97 g/cm3

Melting Point

2040 degrees C

Thermal Conductivity

27.21 W/(m x K) at 300 K

Thermal Expansion

5.6 x 10 -6 /K (parallel C-axis) & 5.0 (perpendicular C-axis) x 10 -6 /K

Hardness

Knoop 2000 kg/mm 2 with 2000g indenter

Specific Heat Capacity

419 J/(kg x K)

Dielectric Constant

11.5 (parallel C-axis) 9.4 (perpendicular C-axis) at 1MHz

Young's Modulus (E)

335 GPa

Shear Modulus (G)

148.1 GPa

Bulk Modulus (K)

240 GPa

Elastic Coefficients

C11=496 C12=164 C13=115
C33=498 C44=148

Apparent Elastic Limit

275 MPa (40,000 psi)

Poisson Ratio

0.25

 

 

Acceptance Check

 

1. The product is fragile. We have adequately packed it and labeled it fragile. We deliver through excellent domestic and international express companies to ensure transportation quality.

 

2. After receiving the goods, please handle with care and check whether the outer carton is in good condition. Carefully open the outer carton and check whether the packing boxes are in alignment. Take a picture before you take them out.

 

3. Please open the vacuum package in a clean room when the products are to be applied.

 

4. If the products are found damaged during courier, please take a picture or record a video immediately. DO NOT take the damaged products out of the packaging box! Contact us immediately and we will solve the problem well.

Product Tags: sapphire crystal wafer 4inch   HDC Single Crystal wafer   sapphire crystal wafer 0.5mm  
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