JOHN CARTER / SCIENCE PHOTO LIBRARY JOHN CARTER / SCIENCE PHOTO LIBRARY
Silicon wafers and chips. View of two processed silicon wafers. The wafers contain dozens of identical integrated microcircuits, which appear as squares. Some of the chips on these wafers are test sites, which are used to test the integrity and performance of the other integrated circuits. If the circuits pass all their tests, they will be cut up so that each square microcircuit may be fitted into a holder for use in circuit boards.
Model release not required. Property release not required.