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Patterned Sapphire Substrate (PSS)

This is an image of a PSS with a scanning range of 10 μm. The height of PSS is about 2 μm and the bottom width is about 3 μm. Sapphire wafers are the most widely used substrate material in the semiconductor lighting industry, and using PSS is a common method to improve the luminous efficiency of semiconductor lighting devices.

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Patterned Sapphire Substrate (PSS)

OLED Pattern

ETL Structure

The Edge Structure of PSS

Glass Substrate