Microelectronics technology is gradually formed and developed in the electronic circuit and system of ultra miniaturization and micromation process.
In late second, World War II, as a result of the military need to put forward a lot of fundamental importance assumption of electronic equipment, and study some useful techniques. The invention of the transistor in 1947, and later with the printed circuit assembly of the electronic circuit in the miniaturization of a big step forward. Before and after 1958 have studied mixed assembly success in this component based. Integrated circuit technology is through a series of specific process, transistors, diodes and resistors, capacitors and other passive devices, according to the - circuit interconnection set, "integrated" on a semiconductor wafer, the executive circuit or a specific system function