Patent ID: 11924974
Assignee: BESI SWITZERLAND AG
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC H

Claim 0:
1. An apparatus for mounting components on a substrate, the apparatus comprising:
a bond head with a component gripper,
at least one reference mark arranged at at least one of the bond head and the component gripper,
a feeding unit configured to supply a component,
a substrate device configured to provide a substrate,
a first drive system configured to move a carrier,
a second drive system attached to the carrier and configured to move the bond head in at least one direction,
a drive attached to the bond head and configured to rotate the component gripper about an axis, or, a rotary drive attached to the substrate device and configured to rotate the substrate about an axis,
at least one substrate camera, and
at least one component camera, or, at least one optical deflection system which, together with the at least one substrate camera, forms at least one component camera,
wherein
the substrate camera or the substrate cameras, respectively, is/are attached to the carrier,
the carrier is movable to the feeding unit by means of the first drive system,
either the carrier is movable to the component camera(s) by means of the first drive system or the component camera(s) is/are fixed to the carrier and swivelable in relation to the bond head, so that the reference mark(s) and a component gripped by the component gripper are in the field of view of the component camera or in the fields of view of the component cameras, so that an actual position of the component is detectable in relation to the reference mark(s),
the carrier is movable above a substrate place of the substrate by means of the first drive system and the bond head is movable by means of the second drive system in a standby position, in which the field of view of the substrate camera or each of the fields of view of the substrate cameras contains at least one substrate mark arranged on the substrate, and
the bond head is movable by means of the second drive system in a nominal working position, in which the field of view of the substrate camera contains the reference mark(s), or, each of the fields of view of the substrate cameras contains at least one reference mark, and wherein a distance between an underside of the component and the substrate is reducible to the extent that both the reference mark(s) and the at least one substrate mark are in the depth of field of the substrate camera(s).