May 10, 2023 Nitride Semiconductor Co., Ltd. Founder, President & CEO Yoshihiko Muramoto ◆Overview We have succeeded to develop the Photonic Crystal (hereinafter referred to as PhC) on which 100 nm size nanofabrication is performed on an ultraviolet LED (hereinafter referred to as UV-LED) with a wavelength of 385nm. We confirmed the light confinement effect of the PhC. ◆ Background A photonic crystal is a structure in which the refractive index changes periodically, and is used to confine light in a small area and enhance the interaction betwe...

Nitride Semiconductors Co., Ltd. (“Nitride”), a pioneer of ultraviolet light emitting diode (UV-LED) technology, has filed complaints against Digi-Key Corporation, a global electrical components distributor, in the U.S. District Court for the District of Minnesota, asserting infringement of Nitride’s UV-LED patent. In the complaints, Nitride is asserting that UV-LED products being supplied by various LED companies - such as American Opto Plus LED Corp., Crystal IS Inc., Kingbright Electronic Co., Ltd., Luminus Device, and ...

SemiLEDs Corp, has released two new UV-LED product series, the 10-watt high-power N9 series, and the 0.17 to 0.50-watt mid-power P50N series. According to proprietary vertical LED structure, both product series are designed for industrial applications including printing, coating, curing, signage and medical or cosmetic uses. The N9 series, placed in a 9mm x 9mm ceramic package, is offered in wavelengths from 385nm to 420nm in 5nm bins. Drive currents up to 1000mA provides typical output of 5000mW of optical power at the nominal 350mA drive rate at 30V. The lamberti...