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Nobel Prizes and Laureates

Nobel Prizes and Laureates

The Nobel Prize in Physics 2009
Charles K. Kao, Willard S. Boyle, George E. Smith

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George E. Smith - Facts

George E. Smith

George E. Smith

Born: 10 May 1930, White Plains, NY, USA

Affiliation at the time of the award: Bell Laboratories, Murray Hill, NJ, USA

Prize motivation: "for the invention of an imaging semiconductor circuit - the CCD sensor"

Field: instrumentation, semiconductor technology

Prize share: 1/4

Work

The ability to store images in a digital format is an important prerequisite for information technology. In 1969 George Smith and Willard Boyle sketched an electronic memory design, but their concept instead became the basis for a light sensitive charge coupled device, or CCD. In the sensor there is a grid of light sensitive cells that emit electrons when exposed to light, causing the cells to become electrically charged. When a voltage is applied to the cells, electrical signals are generated, which are used to build up a digital image. CCD was a breakthrough for digital camera technology.

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