Abrasive stones, except grinding stones: ground or whole, Semiconductor diodes and rectifiers, Electronic circuits
Wolfspeed, Inc
Cree is a technology company that specializes in the design, manufacture and marketing of LED chips, power LEDs, LED backlighting solutions, power switching, wireless communications devices and substrates, as well as epitaxy materials. The company s materials expertise in silicon carbide with gallium nitride includes chips and packaged devices that can handle more power in a smaller space while producing less heat than other available technologies, materials and products. Cree s product families consist of blue and green LED chips, lighting LEDs, LED backlighting solutions, power-switching devices and radio frequency devices. It is also developing near-ultraviolet lasers. Cree is headquartered in Durham, N.C., and maintains technical and production centers in Triangle Park, N.C., Goleta, Calif., Hong Kong, Japan and Austria.
