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LED chip made using four-inch sapphire substrate (On the left: A 12-cm CD for size comparison)https://www.led-professional.com/media/technology_light-generation_sdk-develops-new-crystal-growth-technology-for-gan-based-blue-white-leds_sdk1-gif/viewhttps://www.led-professional.com/media/technology_light-generation_sdk-develops-new-crystal-growth-technology-for-gan-based-blue-white-leds_sdk1-gif/@@images/image-1200-c2463b19b6a4b308291a2df1f5995636.png
LED chip made using four-inch sapphire substrate (On the left: A 12-cm CD for size comparison)
