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High quality sapphire processing

Application processing examples

This is an introduction to a high quality processing method for sapphire, which is used as a substrate for LEDs and other applications.

Processing Example

With dry polishing (DP), it is possible to obtain a high quality result with surface roughness under 10 nm. An example is shown below. DISCO will help select the optimal processing parameters for your desired applications.

Typical grinding process With DP
Surface roughness
Mid-section
Ra 17 nm
Ra 6 nm
Surface roughness
Outer edge
Ra 29 nm
Ra 10 nm
Processed surface condition
Surface after typical grinding process
Surface after typical grinding process
Surface after processing with DP
Surface after processing with DP

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