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Cree Inc. is a Durham, North Carolina
Durham, North Carolina

Durham is a city in the U.S. state of North Carolina. It is the county seat of Durham County, North Carolina and also extends into Wake County, North Carolina county....
 based, American
United States

The United States of America is a Federal government constitutional republic comprising U.S. state and a federal district. The country is situated mostly in central North America, where its Contiguous United States and Washington, D.C., the Capital districts and territories, lie between the Pacific Ocean and Atlantic Oceans, Borders of the U...
 corporation
Corporation

A corporation is a legal entity separate from the persons that form it. It is a legal entity owned by individual stockholders. In British tradition it is the term designating a body corporate, where it can be either a corporation sole or a corporation aggregate ....
 which manufactures semiconductor
Semiconductor

A semiconductor is a material that has electrical conductivity between those of a Electrical conductor and an electrical insulation; it can vary over that wide range either permanently or dynamically....
 materials and devices. After the recent market turmoil, CREE now commands one of the highest trading multiples (highest P/E) on the Nasdaq stock exchange. It was formed in 1987 by researchers from North Carolina State University
North Carolina State University

North Carolina State University at Raleigh is a public university, coeducational, extensive research university located in Raleigh, North Carolina, United States....
. Materials products include silicon
Silicon

Silicon is the most common metalloid. It is a chemical element, which has the symbol Si and atomic number 14. The atomic mass is 28.0855....
, silicon carbide
Silicon carbide

Silicon carbide is a Chemical compound of silicon and carbon bonded together to form ceramics, but it also occurs in nature as the extremely rare mineral moissanite....
 (SiC
Carbon

Carbon is a chemical element with chemical symbol C and atomic number 6. As a member of group 14 on the periodic table, it is nonmetallic and tetravalence?making four electrons available to form covalent bond chemical bonds....
) and gallium nitride. Device products light-emitting diode
Light-emitting diode

A light-emitting diode , is an electronic light source. The LED was discovered in the early 20th century, and introduced as a practical electronic component in 1962....
s (LEDs) made from their materials for a variety of uses, as well as power supply chips, motor controllers and microwave radios.






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Cree Inc. is a Durham, North Carolina
Durham, North Carolina

Durham is a city in the U.S. state of North Carolina. It is the county seat of Durham County, North Carolina and also extends into Wake County, North Carolina county....
 based, American
United States

The United States of America is a Federal government constitutional republic comprising U.S. state and a federal district. The country is situated mostly in central North America, where its Contiguous United States and Washington, D.C., the Capital districts and territories, lie between the Pacific Ocean and Atlantic Oceans, Borders of the U...
 corporation
Corporation

A corporation is a legal entity separate from the persons that form it. It is a legal entity owned by individual stockholders. In British tradition it is the term designating a body corporate, where it can be either a corporation sole or a corporation aggregate ....
 which manufactures semiconductor
Semiconductor

A semiconductor is a material that has electrical conductivity between those of a Electrical conductor and an electrical insulation; it can vary over that wide range either permanently or dynamically....
 materials and devices. After the recent market turmoil, CREE now commands one of the highest trading multiples (highest P/E) on the Nasdaq stock exchange. It was formed in 1987 by researchers from North Carolina State University
North Carolina State University

North Carolina State University at Raleigh is a public university, coeducational, extensive research university located in Raleigh, North Carolina, United States....
. Materials products include silicon
Silicon

Silicon is the most common metalloid. It is a chemical element, which has the symbol Si and atomic number 14. The atomic mass is 28.0855....
, silicon carbide
Silicon carbide

Silicon carbide is a Chemical compound of silicon and carbon bonded together to form ceramics, but it also occurs in nature as the extremely rare mineral moissanite....
 (SiC
Carbon

Carbon is a chemical element with chemical symbol C and atomic number 6. As a member of group 14 on the periodic table, it is nonmetallic and tetravalence?making four electrons available to form covalent bond chemical bonds....
) and gallium nitride. Device products light-emitting diode
Light-emitting diode

A light-emitting diode , is an electronic light source. The LED was discovered in the early 20th century, and introduced as a practical electronic component in 1962....
s (LEDs) made from their materials for a variety of uses, as well as power supply chips, motor controllers and microwave radios. The wide band gap
Band gap

In solid state physics and related applied fields, a band gap, also called an energy gap or bandgap, is an energy range in a solid where no electron states exist....
 semiconductors are suitable for high voltage
Voltage

Electrical tension is the potential difference between two points of an electrical or electronic circuit, expressed in volts. It is the measurement of the potential for an electric field to cause an electric current in an electrical conductor....
 or high power or high temperature operation. SiC is used for high power electronics, largely due to having a very high thermal conductivity
Thermal conductivity

In physics, thermal conductivity, , is the List of materials properties of a material that indicates its ability to conduct heat. It appears primarily in Heat conduction#Fourier's law for heat conduction....
. Two directors of Cree are John Palmour and Chuck Swoboda.

The company's silicon fabrication line in Sunnyvale, California
Sunnyvale, California

Sunnyvale is a city in Santa Clara County, California, California, United States. It is one of the major cities that make up the Silicon Valley....
 is closed, and the company is now focusing on wide band-gap technologies.

The company holds the record for the most efficient White LED
Light-emitting diode

A light-emitting diode , is an electronic light source. The LED was discovered in the early 20th century, and introduced as a practical electronic component in 1962....
 with a prototype that can produce 161 lumens per watt
Luminous efficacy

Luminous efficacy is a figure of merit for light sources. It is the ratio of luminous flux to power . As most commonly used, it is the ratio of luminous flux emitted from a light source to the electric power consumed by the source, and thus describes how well the source does at providing visible light from a given amount of electricity....
 while drawing 350mA of current
Electric current

Electric current is the flow of electric charge. The electric charge may be either electrons or ions.The International System of Units unit of electric current intensity is the ampere....
, more than 10 times what an incandescent (normal) light bulb can produce.

Cree's competitors include Nichia Corporation
Nichia Corporation

The is a Japanese chemical manufacturing company that is most widely known for producing phosphors, including light-emitting diodes .The Nichia Corporation was founded by Nobuo Ogawa in 1956....
, Osram Opto Semiconductors
OSRAM Opto Semiconductors GmbH

OSRAM Opto Semiconductors GmbH of Regensburg is a wholly owned subsidiary of Osram GmbH, one of the world's two leading lighting manufacturers....
 and Philips Lumileds Lighting Company
Philips Lumileds Lighting Company

Philips Lumileds Lighting Company is the manufacturer of Luxeon, a high-power light-emitting diode . It is a division of Philips.History...
. Cree is also facing increasing competiton from low cost Taiwanese LED manufacturers such as Epistar and Everlight.

External links

  • web site.
  • Listing of current Flash Light Products utilizing the Cree LED.