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2 4 6 LED Sapphire Substrate , Colorless Optical Window Glass
2 4 6 LED Sapphire Substrate , Colorless Optical Window Glass
2 4 6 LED Sapphire Substrate , Colorless Optical Window Glass
2 4 6 LED Sapphire Substrate , Colorless Optical Window Glass
2 4 6 LED Sapphire Substrate , Colorless Optical Window Glass
2 4 6 LED Sapphire Substrate , Colorless Optical Window Glass
2 4 6 LED Sapphire Substrate , Colorless Optical Window Glass
2 4 6 LED Sapphire Substrate , Colorless Optical Window Glass
Specifications
Brand Name :
Silian
Model Number :
Customized
Certification :
SGS/ ISO
Place of Origin :
Chongqing，China
MOQ :
500pcs
Price :
Negotiable
Payment Terms :
Western Union, T/T, MoneyGram
Supply Ability :
20,000 pcs/month
Delivery Time :
5-8 weeks
Packaging Details :
1pcs/12pcs/25 pcs
Name :
Sapphire Substrate
purity :
≥99.998%
Front Side Surface :
Mirror polished , EPI-Ready
Orientation :
C plane tiled M axis 0.20°±0.1°
Color :
Colorless and transparent
Back side Roughness :
0.8-1.2um
Thickness :
0.43/0.5/0.65mm
Diameter :
2"/4"/6"
Description

Sapphire substrate for blue and green LED components

Product Description

The materials used in blue and green light-emitting diodes are mainly GaN. Early GaN research has not made significant progress, mainly because it has been unable to find a substrate that matches the lattice constant of GaN, resulting in the density of defects in the epitaxial crystal. Too high, until 1991, Nichia Co. researcher S. Nakamura used low-temperature growth of an amorphous buffer layer of GaN on a c-axis sapphire substrate, and then grown it at high temperature to obtain the same mirror-like surface. For GaN, the problem of the epitaxial part has obtained a major breakthrough at this time.

At present, GaN components of high-brightness blue-green high-light-emitting diodes are mainly grown on Sapphire Wafer, the maximum size can reach 6 inches, and can provide different axial requirements including c, m, a, and r. In addition, to meet customer needs, other next-generation substrates have also been developed.

Technical Specification

Sapphire(Al2O3) Wafer

Type Orientation Thickness(mm) Diameter +Z / -Z
Single Side Polished c/a/m/r 0.43/0.5/0.65 2”/4”/6” Polished/Ground
Double Side Polished c/a/m/r 0.43/0.5/0.65 2”/4”/6” Polished/Polished

Sapphire flat sheet specifications

　 2" 4" 6"
Item Target Tolerance Unit Target Tolerance Unit Target Tolerance Unit
Diameter : 50.8 ± 0.1 mm 100 ± 0.1 mm 150 ± 0.2 mm
Thickness : 430 ± 15 um 650 ± 15 um 1300 ± 25 um
Flat Length: 16 ± 1 mm 30 ± 1 mm 47.5 ± 1 mm
C-plane (0001) Off-set Angle (M-axis): 0.2 ± 0.1 degree 0.2 ± 0.1 degree 0.2 ± 0.1 degree
Flat Off-set Angle: 0 ± 0.25 degree 0 ± 0.3 degree 0 ± 0.3 degree
Bow: -10 ~ 0 um -15 ~ 0 um -15 ~ 15 um
Warp: ≤ 15 um ≤ 20 um ≤ 30 um
TTV: ≤ 10 um ≤ 10 um ≤ 25 um
LTV(5mm*5mm): ≤ 2 um ≤ 2 um ≤ 2 um
Front side Roughness: ≤ 2 Å ≤ 2 Å ≤ 2 Å
Back side Roughness: 0.6 ~ 1.2 um 0.6 ~ 1.2 um 0.6 ~ 1.4 um

Product advantages

Pattern Sapphire Substrate (PSS): The sapphire substrate is designed to produce nano-scale specific regular microstructure patterns by growth or etching to control the output light form of the LED. At the same time, it can reduce the defects of the GaN grown on the sapphire substrate, improve the quality of the epitaxy, and improve the internal quantum efficiency of the LED and increase the light extraction efficiency.

It has the characteristics of high sound velocity, high temperature resistance, corrosion resistance, high hardness, high light transmittance, high melting point (2045°C), etc.

2

Product tags

glass led screen

,

glass transparent led screen

,

led transparent glass screen
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2" 4" 6" LED Sapphire Substrate , Colorless Optical Window Glass

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Product Detail
Brand Name :
Silian
Model Number :
Customized
Certification :
SGS/ ISO
Place of Origin :
Chongqing，China
MOQ :
500pcs
Price :
Negotiable
Contact Supplier
2 4 6 LED Sapphire Substrate , Colorless Optical Window Glass
2 4 6 LED Sapphire Substrate , Colorless Optical Window Glass
2 4 6 LED Sapphire Substrate , Colorless Optical Window Glass
2 4 6 LED Sapphire Substrate , Colorless Optical Window Glass

Chongqing Silian Optoelectronic Science & Technology Co., Ltd.

Active Member
4 Years
chongqing, chongqing
Since 2008
Business Type :
Manufacturer, Distributor/Wholesaler, Importer, Exporter, Seller
Main Products :
Sapphire Optical Window, Sapphire Wafer, Sapphire Crystal Watch Case
Total Annual :
65,000,000-70,000,000
Employee Number :
400~500
Certification Level :
Active Member
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