Protective Optical LED Sapphire Wafer 6 Inch Good Thermal Conductivity

Optical LED Sapphire Wafer Sapphire Ingot With Different Kind Of Size

Sapphire (Sapphire, also known as white sapphire, molecular formula Al2O3) single crystal is an excellent multifunctional material. It has high temperature resistance, good thermal conductivity, high hardness, infrared transmission and good chemical stability. Widely used in many fields of industry, national defense and scientific research (such as high-temperature infrared windows, etc.). At the same time, it is also a widely used single crystal substrate material, and it is the first choice for the blue, violet, and white light emitting diode (LED) and blue laser (LD) industries (the sapphire substrate needs to be epitaxial gallium nitride film first) , Is also an important superconducting film substrate.

Generally, the epitaxial layers of GaN-based materials and devices are mainly grown on sapphire substrates. Sapphire substrate has many advantages: firstly, the production technology of sapphire substrate is mature and the device quality is good; secondly, sapphire is very stable and can be used in the high-temperature growth process; finally, sapphire has high mechanical strength and is easy to handle And cleaning. Therefore, most processes generally use sapphire as the substrate.

Sapphire crystal has excellent optical properties, mechanical properties and chemical stability, high strength, high hardness, erosion resistance, and can work under severe conditions close to 2000 ℃, so it is widely used in infrared military devices, satellite space technology, Window material for high-intensity laser. Its unique lattice structure, excellent mechanical properties, and good thermal properties make sapphire crystals the most ideal semiconductors for practical applications such as GaN/Al2O3 light-emitting diodes (LED), large-scale integrated circuits SOI and SOS, and superconducting nanostructured films. Substrate material. In recent years, with the development of modern science and technology, new requirements have been continuously put forward for the size and quality of sapphire crystal materials.

The production process of synthetic sapphire: preparing raw materials → filling raw materials and setting up seeds → vacuuming the furnace body → heating the furnace body (adding molybdenum heat shield and tungsten heat shield to the furnace body) → raw material melting → welding seed crystals → crystal neck growth →Crystal growth→Separation of the crystal from the crucible→Cooling→Remove the crystal.

Sapphire wafer polishing is divided into A-plane polishing and C-plane polishing. From the perspective of sapphire crystal plane properties, the hardness of the A-plane crystal plane is higher than that of the C-plane crystal plane. The mobile phone screen belongs to the A-plane sapphire crystal surface, which is the most difficult to polish. Sapphire A-plane polishing is generally divided into three stages: grinding, copper polishing and fine polishing. The function of the first grinding stage is to reduce the depth of stepped scratches on the surface during the cutting process of the sapphire raw material, and more importantly, to make the thickness of the batch of sapphire raw material as consistent as possible.

Produc Requirements of 6 inch sapphire wafer

The product specified herein shall be manufactured from high quality optical grade sapphire crystals.

FQA

1. Are you a trading company or factory?

We are a professional factory of sapphire products, also a trading company .

2.Can you do customized products?

Yes, we specialized in customized production or OEM work.

CAD,3D drawing are needed.

3.Could you provide samples?

Yes, we could provide samples with a charge, but if you place the order with a quality above 100pcs, the sample charge will be refunded.

4.What’s the delivery time?

It depends on the type of products and the quality.

For watch case, the regular time is around 5-8 weeks for 200pcs according to the difficulty of the processing.

5.How about the payment?

T/T payment is prefered.

6.How about the delivery?

Mostly by air, like DHL, Fedex.

Why US?

1. We’re the rare source manufacturer of color sapphire boule, and the most professional factory of sapphire processing, especially the special watch case.

2. We have our own sapphire grown equipent with CZ and KY method.

3. Professional customized production according to the drawing provided by clients.

4. Precision work of sapphire processing and polishing.

5. Experienced technicians and skilled workers.