Patent ID: 6343415
Filing Date: 2002-02-05
Classification: H05K,Y10S,Y10T

Abstract:
A component holding head comprising:an axially drivable shaft having a nozzle at one end of the shaft for holding a component; a motor for driving said shaft in an axial direction in response to power supplied to said motor, with said motor including one of (i) a magnet fixed to a circumferential surface of said shaft and a coil surrounding said magnet, and (ii) a coil fixed to a circumferential surface of said shaft and a magnet surrounding said coil; and a detecting device for detecting movement of said shaft in the axial direction, wherein the distance that said shaft is driven by said motor in the axial direction is controllable by controlling the amount of power supplied to said motor in response to movement of said shaft as detected by said detecting device.