George E. Smith Created 2026-10-24 Updated 2026-11-05
George E. Smith and Willard Boyle introduced the charge-coupled device, which stores information as electric charge packets in movable potential wells at a semiconductor surface. Changing electrode potentials transfers a packet to a neighboring storage region. Their 1970 paper describes electric charge creation, transfer and detection, and proposes both information-processing and imaging applications. The same electrical mechanism can therefore shift a stored signal through a device or carry light-generated electric charge toward a detector.[ref]
One half went to Charles Kuen Kao for breakthroughs in transmitting light through optical fibers for communication. One quarter each went to Willard S. Boyle and George E. Smith for inventing the charge-coupled device imaging sensor.[ref]
Willard Boyle Created 2026-10-24 Updated 2026-11-05
Willard Boyle and George E. Smith devised the charge-coupled device around controlled storage and movement of electric charge. Adjacent electrodes create potential wells in a semiconductor; timed changes of their voltages move stored electric charge between the wells. The 1970 proposal treats electric charge packets as information and discusses a shift register as well as an imaging device. This links electrostatic control of a surface to the transport and detection of an optical signal.[ref]
Figure 1.
Portrait of Willard Boyle
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