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ShanXiZhongJuJingKe Semiconductor Co., Ltd

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HomeProductsSapphire WindowSapphire LensSapphire ingots LED Grade
  • Sapphire ingots LED Grade

Sapphire ingots LED Grade

Product Description

studied material and a thin ruby plate are clamped between sapphire plates. Under the influence of electric current or laser heating on the investigated plate, a pressure of ~100 kbar arises during 1–2 ms.

The pressure is measured from the shift in the ruby luminescence peak value. A pulse at l = 532 nm is applied to the ruby plate via a light guide and the sapphire plate.

The luminescence signal is passed at l = 700 nm using the same light guide. The shift of the luminescence peak at this signal, equal to 0.5 nm, corresponds to an increase in pressure by 20 kbar.3.

As an expendable transducer, high-quality ruby with a chromium content of 0.5–0.7% is used.

Ruby-based pressure transducers are used for hydrostatic pressures on the order of 60 kbar. Such a sensor is shaped as a disk, with a diameter of 0.6 mm and a thickness of 0.1 mm, and contains 4·10 14 spins.

Although there are lots substrates which are regarded as potential materials to replace Sapphire Substrate, it is still dominated in the substrates (for GaN LED growth) market, because of its reasonable price and relatively low mismatch. Zhongju is capable of processing substrates according to customer needs. Currently, our sapphire substrate productions ranges from 2 to 12 inches with high quality and accurate orientation.

Table 1 Size of substrates

2 inches Substrates

4 inches Substrates

6 inches Substrates

Diameter (mm)




Primary Flat Length (mm)




Table 2 Specification of substrates


High purity Single Crystal Sapphire

Surface Orientation

C-plane ± 0.1°

Primary Flat Orientation

A-plane ± 0.5°

Broken edge length





No inclusiontwinor boundary

Bubble and cloud

Dense bubbles, clouds, and scattered bubble marked and counted as defects by length


≤1000 pits/cm2

Looking for ideal Color Sapphire Lens Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the Sapphire Wafer and Ingot are quality guaranteed. We are China Origin Factory of Al2O3 Sapphire Windows. If you have any question, please feel free to contact us.

Product Categories : Sapphire Window > Sapphire Lens

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