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Seoul Semiconductor Inks License Agreement With Inventor
Apr 2008
LED manufacturer Seoul Semiconductor Co. Ltd. of Seoul, Korea, announced it signed a license agreement with Gertrude Neumark Rothchild, a retired Columbia University professor, earlier this month. Rothchild filed a complaint with the US International Trade Commission (US ITC) Feb. 19 against 34 major electronics companies, including Seoul Semiconductor, alleging that they violated her 1993 patent that covers a method of producing wide-bandgap semiconductors for LEDs and laser diodes in the blue/ultraviolet bands of the spectrum. Such LEDs and laser diodes are gaining popularity as lighting sources in devices because they are more energy efficient, reliable, last longer and have a greater storage capacity (See: Block Sought on Imports). Seoul Semiconductor said the license agreement will allow unrestricted sales of its LED products in the US market; the company's LEDs are used in applications including general lighting, signage, backlighting for cell phones, TVs, notebook computers, automotive lighting, and home appliances.

The technology of generating and harnessing light and other forms of radiant energy whose quantum unit is the photon. The science includes light emission, transmission, deflection, amplification and detection by optical components and instruments, lasers and other light sources, fiber optics, electro-optical instrumentation, related hardware and electronics, and sophisticated systems. The range of applications of photonics extends from energy generation to detection to communications and...
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