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Patterned Sapphire Substrates

Product Description: 

Patterned Sapphire Substrates (PSS) is micro-patterned sapphire substrate used to for GaN based light emitting diodes(LEDS). The PSS reduces the dislocation density in the GaN layer, enhances the light extraction efficiency and increase LEDs’ brightness.

Figure 1: PSS pattern types

Features: 

  • Nano-scale pattern is available    
  • Dome, pillar or rod types are available
  • Custom pattern is welcome

Specification: 

Material Mono-crystalline Sapphire Substrate
Thickness 50.8±0.1mm (2 inches) 100.0±0.2mm (4 inches)
Orientation  C-M axis 0.2°
 C−>M-axis 0.2°
Orientation Tolerance ± 0.2°
Thickness 430 ± 25um 650 ± 25um
Primary Flat Length 16.0±1.0mm
30.0±1.5mm
Primary Flat Orientation A-plane (1 1-2 0 ) ± 0.2°
TTV ≤10µm ≤15µm
BOW ≤10µm ≤15µm
Front Surface Epi-Polished (Ra< 0.2nm)
Back Surface Fine ground (0.6~1.2μm) or Epi-polished
Pattern Height 0. 45,       1.6,      1.6μm
Pattern Pitch 1.0,          3.0,      3.0μm
Pattern Bottom Diameter 0.7,        2.4,       2.6μm
Pattern Arrangement

Appearance  Free of foreigh materials, crack, sawmark, or chipppings
Packaging Packaged in a class 100 clean room environment

 

2 Inch C-M axis 0.2° patterned sapphire wafers in stock, thickness: 0.43mm, one side polished, PPSS-1131171 ($52.0): 

 
 

 
Pattern height:1.6um, pattern pitch: 3um, pattern bottom diameter:2.5. Primary flat orientation is A-Plane. contact us for quantity pricing.

 

2 Inch C-M axis 0.2° patterned sapphire wafers in stock, thickness: 0.43mm, double side polished, PPSS-1131172 ($92.0): 

 
 

 
Pattern height:1.6um, pattern pitch: 3um, pattern bottom diameter:2.5. Primary flat orientation is A-Plane. contact us for quantity pricing.

 

2 Inch C-M axis 0.2° patterned sapphire wafers in stock, thickness: 0.43mm, double side polished, PPSS-1131112 ($108.0): 

 
 

 
Pattern height: 0.45um, pattern pitch: 1um, pattern bottom diameter: 0.7um. Primary flat orientation is A-Plane. contact us for quantity pricing.

 

2 Inch C-M axis 0.2° patterned sapphire wafers in stock, thickness: 0.43mm, one side polished, PPSS-1131151 ($52.0): 

 
 

 
Pattern height:1.6um, pattern pitch: 3um, pattern bottom diameter:2.6. Primary flat orientation is A-Plane. contact us for quantity pricing.

 

4 Inch C-M axis 0.2° patterned sapphire wafers in stock, thickness: 0.65mm, one side polished, PPSS-1361451 ($208.0): 

 
 

 
Pattern height:1.6um, pattern pitch: 3um, pattern bottom diameter:2.6. Primary flat orientation is A-Plane. contact us for quantity pricing.

 

6 Inch C-M axis 0.2° patterned sapphire wafers in stock, thickness: 1.0mm, one side polished, PPSS-14A1581 ($596.0): 

 
 

 
Pattern height:1.6um, pattern pitch: 3um, pattern bottom diameter:2.6. Primary flat orientation is A-Plane. contact us for quantity pricing.

 

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