Bonding head for mounting components and die bonder with such a bonding head

A die bonder comprising:

• a bonding head for mounting components on a substrate, having
• a shaft,
• a housing part comprising a bearing for the shaft which allows rotation of the shaft about an axis and a movement of the shaft in a longitudinal direction of the axis about a predetermined stroke,
• a drive configured to rotate the shaft about the axis,
• an encoder configured to measure the rotational position of the shaft, and
• a force generator configured to apply a force to the shaft in the longitudinal direction of the axis,
• wherein
• the drive is an electric motor comprising a stator and a rotor and the drive is configured to move the bonding head in the longitudinal direction of the axis, wherein
• the stator is attached to the housing part and the rotor to the shaft,
• the rotor comprises a plurality of permanent magnets,
• the stator comprises coils to which currents can be applied, wherein the magnetic field generated by the currents flowing through the entirety of the coils causes the rotation of the permanent magnets about the axis, and
• a length of the permanent magnets measured in the longitudinal direction of the axis is shorter or longer than an effective length of the coils measured in the longitudinal direction of the axis by at least the stroke.