Patterned Sapphire Substrates (PSS) for UV LEDs

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Patterned Sapphire Substrate for Ultraviolet (UV) LEDs

Researchers have used several types of sapphrie wafer including:

  • Flat (FSS)
  • Patterned (PSS)
  • Silica Array (PSSA)

To make Ultraviolet (UV) Light Emitting Diodes (LEDs).

Patterned Sapphire Substrates

We, along with our partners, can fullfill all your PSS needs.

Using Patterned Sapphire Substrates can significantly increase the light output of LEDs. Benefits include:

- Increased light emissions of active quantum well layers as the result of reduced epitaxial defect density.

-PSS reduces light loss due to the Total Internal Reflection (TIR) phenomena by enabling a photon scattering effect.

Below is just an example of PSS that we sell.

2" PSS with the following pattern specifications:

Pattern Pitch 3.0um ± 0.15um
Pattern Bottom 2.7um ± 0.15um
Pattern Space 0.3um ± 0.15um
Pattern Height 1.7um ± 0.15um

Patterned Sapphire Substrates