Patent ID: 7624904
Filing Date: 2009-12-01
Classification: B23K,H01L

Abstract:
1. A wire bonding machine comprising: a bondhead assembly including a transducer and a bonding tool, the bonding tool being attached to the transducer at an attachment portion of the transducer, the bondhead assembly being configured for substantially vertical movement with respect to a bonding surface of the wire bonding machine during a wire bonding operation; a detection member coupled to a tip end of the bonding tool, the detection member being distinct from the attachment portion of the transducer; and a camera having a field of view directly below the camera and offset from the bondhead assembly, the detection member including a portion extending away from the bonding tool and into the field of view of the camera directly below the camera, the camera being configured to receive images of the portion of the detection member, the images being used to determine a position where a length of the transducer is substantially parallel to the bonding surface.