A device used in the manufacture of microcircuits to apply a photolithographic image repeatedly, at regular intervals (by imaging, moving a step and repeating)
A kind of electric motor (a stepper motor) that advances in steps rather than smoothly
a horse trained to lift its feet high off the ground while walking or trotting a motor (especially an electric motor) that moves or rotates in small discrete steps
The person who operates the equipment that will impose singles according to the job ticket and the marksheet
a motor (especially an electric motor) that moves or rotates in small discrete steps
- A type of motor that moves in discrete amounts for each input electrical pulse Stepper motors used to be widely used for read/write head positioner, since they can be geared to move the head one track per step Stepper motors are not as fast or reliable as the rotary voice coil actuators which Quantum disk drives use
A type of motor that moves in discrete amounts with each electrical pulse Steppers were originally the most common type of actuator engine, since they can be geared to advance a read/ write head one track per step However, they are not as fast, reliable, or durable as the voice coil actuators found in Quantum disk drives
A photolithography machine used to expose a pattern on a wafer by shining light through a reticle (a glass plate containing a pattern etched in chrome) Since it cannot accurately expose the entire wafer at once, a stepper exposes an area of a smaller size and keeps repeating this until the whole wafer is covered This process is called step and repeat An eight inch wafer might need about 80 fields for full exposure back to top