Edge Grinding of Sapphire Wafer

Process for Brittle Materials

Edge Grinding of Sapphire Wafer
Wafer Size: 2 inch~8 inch OF / Notch

Feature

Sapphire has advantages with mechanical stability, heat resistance, chemical stability and transparency, and it is widely used as a substrate and polarizer board for blue and white LED production.

Sapphire is very hard and difficult to cut material though, smooth finish can be achieved with the high accuracy and high rigid grinding system of our edge grinder.

Example of High Quality Grinding of Sapphire Wafer

The notch depth, angle and corner radius (R) are measured, and the stable shaping accuracy is achieved by the automatic correction.

Actual screen
Notch
Notch
Edge Shape
Edge Shape

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