Access

News and Views

Nature 416, 799-801 (25 April 2002) | doi:10.1038/416799a

Semiconductors: An eye for impurity

Paul S. Peercy

Top

As electronic devices become smaller, so the challenge of maintaining their electrical properties grows. Identifying the positions of introduced impurities in a semiconductor crystal is a major first step.

The electrical properties of a semiconductor can be controlled by adding certain foreign atoms to the material. This technique is called impurity doping.