| Certification: | ISO |
|---|---|
| Application: | Glass |
| Type: | Quartz Plate |
| Material: | Moonocrystalline Al2o, High Purity |
| Diameter: | 10mm-200mm |
| Thickness: | 0.43mm-1.3mm |
| Customization: |
|---|
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Sapphire(Al2O3) wafer is the popular substrates for III-V nitrides, superconductor and magnetic epi-film. They are widely used in GaN and thin-film epitaxial growth, silicon on sapphire, LED market and optics industry. We are a professional sapphire wafer supplier who manufactures 99.996% high purity single crystal polished sapphire wafers for epitaxy.
The general specs are as follows sheet, if your specified is not included with it, you may freely tell us and we'll pleased to customize them for you.
| Material | 99,999% of Al2O3,High Purity,Moonocrystalline Al2O3 | |||||
| Surface Orientation | C-plane(0001) to M-plane(1-100)or A-plane( 11-20) 0.2 +/- 0.1°, R-plane(1-102), | |||||
| Diameter/size | 2"(50.8mm) | 3"(76.2mm) | 4" (100mm) | 5" (125mm) | 6"(150mm) | 8"(200mm) |
| Tol(±) | 0.10mm | |||||
| Thickness | 430 μm +/- 25 μm | 500 μm +/- 25 μm | 650 μm +/- 25 μm | 650 μm +/- 25 μm | 1300μm +/-25 μm | 1300μm +/- 25μm |
| Primary Flat Orientatoin | A-Plane(11-20)+/- 0.2° | |||||
| Primary Flat Length | 16.0 mm +/- 1.0 mm | 22.0 mm +/- 1.0 mm | 30.0 mm +/- 1.0 mm | 42.0 mm +/- 1.0 mm | 47.0 mm +/- 1.0 mm | / |
| TTV | <10µm | <15µm | <20µm | <20µm | <25µm | <30µm |
| Bow | <10µm | <15µm | <20µm | <20µm | <25µm | <30µm |
| Warp | <10µm | <15µm | <20µm | <20µm | <25µm | <30µm |
| Surface Type | Single Side Polished /Double Sides Polished | |||||
| Polished side | Epi-polished Ra<0.2nm(by AFM) | |||||
| Back Side Criteria | Fine ground, Ra= 0.8µm -1.2µm / Epi-polished Ra<0.2nm | |||||
| Wafer Surface Criteria | Contamination, | None | ||||
| Scratch , chipping | None | |||||
| Defect | No edge cracks, scratches, saw marks, stains | |||||
| Packaging | Qty/Wafer box | Class 100 cleanroom cleaning and vacuum packaging, 25 pieces in one cassette packaging or single piece packaging. |
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What are Sapphire Wafers and Substrates?
Manufacturers produce sapphire wafers and substrates from single-crystal aluminum oxide (Al2O3), often known as sapphire, because of their transparent and durable qualities. These wafers and substrates form the foundation for various semiconductor devices, optoelectronics and micro-electromechanical systems (MEMS). Renowned for their superior thermal, electrical and optical properties, sapphire substrates provide a high-quality surface for epitaxial growth, which is vital in producing high-performance devices.
What Applications Are Sapphire Wafers and Substrates Used For?
Sapphire wafers and substrates find extensive applications in numerous high-tech industries. They are fundamental in producing semiconductor devices, where their thermal stability and electrical insulation properties offer substantial advantages. In optoelectronics, sapphire's transparency and high refractive index make it an excellent choice for GaN-based LEDs, where the Patterned Sapphire Substrates (PSS) technique has boosted their efficacy. Furthermore, Micro-Electro-Mechanical Systems (MEMS) technology also uses sapphire substrates for devices like accelerometers, gyroscopes and micro-mirrors due to its superior mechanical strength and chemical resistance.
CQT's primary goal is "To be a reliable primary microelectronics substrates supplier in today's World". The entire organization, beginning with top management, has worked consistently to meet this goal.
Our reputation for quality is based on a commitment to the newest and most effective design, manufacturing, testing, and management procedures - including, but not limited to, design for manufacturing, statistical process control, lean manufacturing, and continuous improvement methodologies. We have had a fully implemented and effective IATF16949 Quality Management System.
CQT is committed to conduct its all operations in a socially responsible, ethical, and sustainable manner to protect the environment and ensure the safety and health of our employees, customers, and surrounding communities. We are also committed to continuous improvement on all environmental issues. CQT maintains ISO9001/ISO14001 certifications and also implements the EICC standards. and implemented the Electrical Industry Code of Conduct as well.
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