Microchip cross-section. Coloured scanning electron micrograph (SEM) of a cross-section through a microchip, showing multiple sub-surface layers. The regular shapes (light blue) are the printed circuitry and miniature electronic components that have been assembled on the microchip. Multi-layering, as seen here, can be done because of the precision of the manufacturing methods, and helps to increase the capacity of the microchip. Microchips (or integrated circuits) are used in computers and other electronic devices. This microchip was sliced open using an argon ion beam. Magnification: x2050 when printed 10cm wide.