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US 2026/0262332 A1Published application
Twisting method of post laser lift-off sapphire removal
AssigneeLumileds LLC
InventorsJoyce Chan Li Kin, Chee Chung James Wong, Yeow Meng Teo
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Abstract
A light emitting diode (LED) device sapphire substrate removal apparatus and method are disclosed. The method includes placing the LED device comprising a sapphire substrate and a carrier onto a holding plate sized and shaped to hold the carrier of the LED device and applying a twisting force to the sapphire substrate to separate the sapphire substrate from the carrier. The apparatus includes the holding plate and a sapphire substrate removal tool.
Claims20
A method of removing a sapphire substrate from a light emitting diode (LED) device, the method comprising:
- placing the LED device comprising the sapphire substrate and a carrier onto a holding plate sized and shaped to hold the carrier of the LED device;
- and
- applying a twisting force to the sapphire substrate to separate the sapphire substrate from the carrier.
Dependencies are inferred from the claim text.