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Sapphire LED Grinding Wheel
Usage
- Sapphire Ingot
- - Cup Wheel for the Sapphire Boule's C reference surface machining
- - Cup Wheel for Ingot C surface flat screen
- - Cup Wheel for cylindrical ingot grinder
- Sapphire Wafer
- -Back Grinder Wheel for Wafer Thinning Machining
Distinctive Features
- Quality First product design
- Improved process productivity and material life time
- - Optimize process customized to the machine & material
Tornado Type 250 ~ 380 Ø
#170 ~ #325 Metal wheel
Ring Type 313 Ø
#170 ~ #500 Metal wheel
297Ø #270 Vitrified wheel
Ingot grinding wheel
Sapphire Ingot and Wafer
What is a Grinder Wheel befitting the LED process?
- Wheel design for minimizing grinding load
- - Minimize wafer damage by reducing contacting area between wheel's blades and wafer surface
- - Optimization of blade’s geometry and arrangement for easy grinding sludge ejection
- Quality-driven wheel design as well as lifetime
Processing material (Sapphire)
| Mineral Type | Hardness (Mohs) | Processing margin | Remarks |
|---|---|---|---|
| Diamond | 10 | - | Processing tool |
| SiC | 9.7 | 3% | SiC & Sapphire share the very similar hardness with the Diamond tools, which means it rarely leaves processing margin. Therefore, special wheels need to be designed. |
| Sapphire | 9.6 | 4% | |
| ~ | ~ | ~ | |
| Si | 6.2 | 38% | |
| Fe | 4.5 | 55% | |
| Zinc | 3.5 | 65% | |
| Gold | 2.5 | 75% | |
| Lead | 1.5 | 85% | |
| Graphite | 1 | 90% |
