Hangzhou Freqcontrol Electronic Technology Ltd.
| 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 |
| Brand Name | BonTek |
| Model Number | Sapphire (Al2O3) |
| Certification | ISO:9001 |
| Place of Origin | China |
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Product Specification
| 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 |
| Brand Name | BonTek | Model Number | Sapphire (Al2O3) |
| Certification | ISO:9001 | Place of Origin | China |
| High Light | sapphire crystal wafer 4inch ，HDC Single Crystal wafer ，sapphire crystal wafer 0.5mm | ||
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 |
| 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.
Company Details
Business Type:
Manufacturer,Trading Company
Year Established:
1999
Total Annual:
800M-1500M
Employee Number:
10~99
Ecer Certification：
Verified Supplier
Founded in 1999, Hangzhou Freqcontrol Electronic Technology Ltd. is a China leading manufacturer of piezoelectric crystal wafers, substrates, components and single crystal growth. We, known as the "CQT Group" in global market, headquartered in Hangzhou, China, empowered by its manufacturin... Founded in 1999, Hangzhou Freqcontrol Electronic Technology Ltd. is a China leading manufacturer of piezoelectric crystal wafers, substrates, components and single crystal growth. We, known as the "CQT Group" in global market, headquartered in Hangzhou, China, empowered by its manufacturin...
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