Abstract: A method for operating an ultrasonic bonding apparatus, the ultrasonic bonding apparatus providing an ultrasonic transducer with a carrier, displaceable in a z direction, including an ultrasound generating device which is movable relative to the carrier and is held thereon, and including an ultrasonic tool which is excitable to ultrasonic vibrations by the ultrasound generating device.

Abstract: A wire guide module for an ultrasonic wire bonder, comprising a body made of a thermally stable metallic and/or ceramic material, wherein an elongated wire feed-through channel having a wire inlet opening and having a wire outlet opening is provided on the body, and comprising a guide tube provided in the wire feed-through channel. In addition, the invention relates to a thermosonic wire bonder having a wire guide module.

Abstract: A device for heating and determining the actual temperature of a bonding tool of an ultrasonic bonder, comprising the bending tool, which has a first end face, a second end face, a lateral surface, which connects the first end face to the second end face, and an absorption region, comprising a temperature measuring unit for determining an actual temperature of the bonding tool at a temperature measuring point, which is provided on the lateral surface of the bonding tool and preferably at a tip of the bonding tool, and comprising a laser generator, a laser beam being provided with the aid of the laser generator, and the laser beam striking the bonding tool in the absorption region, and the bonding tool being heated as a result of the absorption of the laser beam.

Abstract: A bonding arrangement comprising a bonding tool, having a tool shank which is designed to extend in a longitudinal direction of the tool, and a tool tip which connects to the tool shank. A first end side of the bonding tool is provided on the tool tip, which is designed to come into contact with a connection part. A second end side of the bonding tool is provided on the tool shank. The bonding tool has a casing surface connecting the first end side and the second end side, said bonding arrangement comprising a laser generator for providing a laser beam and comprising a light guide designed to guide the laser beam to the bonding tool. A functional recess is formed on the bonding tool on the casing side and the light guide is associated with the bonding too on the casing side from the outside and at a distance.

Abstract: An apparatus for detecting the temperature of a bonding tool during laser-assisted ultrasonic bonding, comprising an automatic bonding machine having the bonding tool, having a displacement and/or positioning module for the bonding tool and having a device for exciting the bonding tool to ultrasonically vibrate, comprising a laser generator for providing a laser beam, and comprising an optical waveguide for guiding the laser beam from the laser generator to the bonding tool, wherein the optical waveguide has a multi-part design, that a deflecting and beam-splitting unit is provided between at least two adjacent parts of the optical waveguide and that furthermore a temperature sensor is provided.

Abstract: An ultrasonic tool including a first end face and a second end face opposite the first end face. A tool lateral surface connects the first and second end face. The ultrasonic tool is elongate in a longitudinal direction of the tool, wherein at least the first end face is designed as a connection contact surface that is arranged for pressing the ultrasonic tool against a connection component, wherein the ultrasonic tool has an end region having the connection contact surface, which end region extends from the connection contact surface in the longitudinal direction of the tool over 15 mm, but at most one third of a length of the ultrasonic tool, toward the opposite end face, and wherein a pocket-shaped and/or blind-hole-like recess having a recess lateral surface and having a recess floor facing the connection contact surface is formed at the tool lateral surface in the end region.

Abstract: A method for producing an electrically conductive connection between a contact surface of a functional component and a connection component. The connection component is pressed against the contact surface of the functional component with a normal force using a bonding tool. The bonding tool and the connection component are brought in contact with same to vibrate ultrasonically. A laser beam is generated by a laser generator and directed onto the bonding tool, and preferably onto a tip of the bonding tool, whereby the tip of the bonding tool is heated. An actual temperature of the tip is contactlessly measured and the laser generator is operated intermittently and/or with an adjustable laser output such that a predefined target temperature is adjusted at the tip of the bonding tool.

Abstract: An ultrasonic tool comprising a first end face and a second end face, which is opposite the first end face, as well as a tool cover surface connecting the first end face and the second end face, wherein the ultrasonic tool is elongated in a longitudinal direction of the tool, wherein at least the first end face is formed as a connecting contact surface, which is arranged for pressing the ultrasonic tool against a connecting component, and wherein the ultrasonic tool comprises an end region comprising the connecting contact surface, which extends from the connecting contact surface in the longitudinal direction of the tool over 15 mm, but at most extends one third of the length of the ultrasonic tool in the direction of the opposite end face, and wherein in the end region, a first partial surface of the tool cover surface is formed as a surface-structured absorption surface.

Abstract: An ultrasonic bonding method for electrical contacting a plurality of battery cells of a battery block. A first connection point is produced in that a bonding tool is heated directly, and a first connection contact surface of a first battery cell and/or a connection conductor is/are heated locally and indirectly by a laser beam directed toward the bonding tool. The connection conductor is pressed against the first connection contact surface of the first battery cell. The bonding tool is excited to vibrate ultrasonically, the ultrasonic vibrations being transferred from the bonding tool to the connection conductor. A second connection point is produced in that the connection conductor is pressed against a second connection contact surface of a second battery cell of the battery block or a common connection contact of the battery block by the bonding tool and excited to vibrate ultrasonically.

Abstract: The invention relates to a bonding arrangement comprising a bonding tool including a tool shank, which is designed as elongated in a tool longitudinal direction, and including a tool tip, which adjoins the tool shank, and comprising a light guide designed to conduct a laser beam, the light guide being provided in a longitudinal recess of the bonding tool, the longitudinal recess extending from an end face of the bonding tool opposite the tool tip in the direction of the tool tip, a functional recess being formed on the lateral surface of the bonding tool, and the longitudinal recess being made to extend up to the functional recess. The invention further relates to a bonding tool having a functional application as well as the use of the bonding arrangement according to the invention and/or the bonding tool for ultrasonic bonding.

Abstract: A device for establishing a bonding connection, with a bonding head mounted so as to rotate about an axis of rotation, and a transducer (1) mounted on the bonding head. The transducer (1) has a piezo actuator (5) for generating ultrasonic vibration, in particular a natural ultrasonic vibration. Electrodes are (20) provided on the piezo actuator (5) in such a way that the piezo actuator (5) can be excited by an electric field in a field direction (10) transverse to a polarization direction (9) of the piezo actuator, and as a result of the excitation and of the connection of the piezo actuator (5) to the fastening section (6) and to the tool holder (3), the piezo actuator (5) carries out a shearing motion in a shearing plane (18) formed by the polarization direction (9) and by the field direction (10).

Abstract: A method for operating an ultrasonic wire bonder. The ultrasonic wire bonder has a bonding head with a bonding tool and with a transducer for exciting ultrasonic vibrations in the bonding tool and a controller (2) for the transducer (1). In a first process phase I a bonding wire is bonded to a substrate. The bonding wire is pressed against the substrate with a bonding force via a tool tip of the bonding tool, and the bonding tool is then excited so as to undergo ultrasonic vibrations in order to produce a bond between the bonding wire and the substrate, the transducer (1) being excited so as to vibrate for a specified or variable bonding time. In a second process phase II, the actuation of the transducer (1) is changed and reverberations of the bonding tool are counteracted, the transducer (1) being operated in a damped manner.

Abstract: A production method for a bonding tool with a body that has an elongated tool shank of the bonding tool and a tool tip adjoining the tool shank, and with a blind hole that is provided in the region of an elongated tool shank of the bonding tool and that is carried into the region of a tool tip, wherein a contact surface of the bonding tool is provided on the tool tip, comprising the following production steps: first a through opening is produced that is carried through the tool shank to the tool tip; then the through opening is closed in the region of the tool tip by a terminating element inserted into the body.

Abstract: A method for operating an ultrasonic wire bonder. The ultrasonic wire bonder has a bonding head with a bonding tool and with a transducer for exciting ultrasonic vibrations in the bonding tool and a controller (2) for the transducer (1). In a first process phase I a bonding wire is bonded to a substrate. The bonding wire is pressed against the substrate with a bonding force via a tool tip of the bonding tool, and the bonding tool is then excited so as to undergo ultrasonic vibrations in order to produce a bond between the bonding wire and the substrate, the transducer (1) being excited so as to vibrate for a specified or variable bonding time. In a second process phase II, the actuation of the transducer (1) is changed and reverberations of the bonding tool are counteracted, the transducer (1) being operated in a damped manner.

Abstract: A device for establishing a bonding connection, with a bonding head mounted so as to rotate about an axis of rotation, and a transducer (1) mounted on the bonding head. The transducer (1) has a piezo actuator (5) for generating ultrasonic vibration, in particular a natural ultrasonic vibration. Electrodes area (20) provided on the piezo actuator (5) in such a way that the piezo actuator (5) can be excited by an electric field in a field direction (10) transverse to a polarization direction (9) of the piezo actuator, and as a result of the excitation and of the connection of the piezo actuator (5) to the fastening section (6) and to the tool holder (3), the piezo actuator (5) carries out a shearing motion in a shearing plane (18) formed by the polarization direction (9) and by the field direction (10).