Hesse Gmbh

Hesse & Knipps Gmbh

Hans-Juergen Hesse

Michael Broekelmann

Matthias Hunstig

Andreas Unger

Piotr Vasiljev

Joerg Wallaschek

Andreas Jochheim

Gregor Belting

Markus Riese

Sebastian Hagenkoetter

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.

Ultrasonic tool and ultrasonic connection device therefor

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.

Device for heating and determining an actual temperature of a bonding tool of an ultrasonic bonding device

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.

Method for electrically contacting a battery block

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.

Ultrasonic tool and ultrasonic connection device herein

A method for securing a bonding product in a working region of a bonder via a clamping device. The bonding product and the clamping device are positioned in the working region of the bonder and a partial characteristic contour is captured to determine the position of the bonding product in the working region. The previously set clamping position of the clamping fingers is captured via a camera and a clamping position is calculated. A current position and orientation of clamping fingers and a new misalignment of the clamping fingers is calculated and displayed until the current position and orientation of the clamping fingers corresponds to a clamping finger reference position.

Method for securing a bonding product in a working region of a bonder

A calibration method for a bonder. Characteristics of a force actuator of the bonder are measured and stored in such a way that the force actuator can be controlled optimally during production operation of the bonder on the basis of the measured data. Further, a device for fully automatic or partially automatic bonding force calibration.

Automatic bonding force calibration

In a method for ultrasonic bonding, two longitudinal ultrasonic waves propagating in a common working plane oriented parallel to a substrate are induced in one or more ultrasonic transducers and are passed through ultrasound-conducting arms from different spatial directions onto a common connection point of the arms. At the connection point the ultrasonic waves cause an ultrasonic tool arranged directly or indirectly at said connection point to oscillate in two or three dimensions. At least one of the ultrasonic transducers induces an ultrasonic wave with a first harmonic oscillation component and a second oscillation component.

Method for ultrasonic bonding having at least one first and second ultrasonic  transducer generating harmonic oscillation components

A method for quality control during ultrasonic bonding, in which a transducer bonding tool unit and an ultrasonic generator are used and in which, during the bonding, one or more sensors are used to sense measurement signals for one or more parameters, which can vary during the bonding, for assessing the bond quality and/or for influencing the bonding, and which proposes that, during the bonding, at least one speed profile measurement signal representing the time/speed profile of the tip of the ultrasonic tool in the direction of oscillation thereof be sensed. The invention also relates to a bonding apparatus which is suitable for carrying out the method. Furthermore, the invention relates to other quality control methods for ultrasonic bonding and to bonding apparatuses which are suitable for carrying out these methods.

Method for quality control during ultrasonic

A bonding device, particularly for producing bond connections between electrical conductors made of wire material or strip material and contact points of substrates such as electrical circuits, wherein the bonding device comprises a bonding head () which can be rotated about a geometric axis of rotation (D), in particular a vertical axis, and on which a bonding tool () and an ultrasonic transducer () are disposed for ultrasonic vibration excitation of the bonding tool (). It is proposed that the main direction of extension () of the ultrasonic transducer () and/or the direction of extension thereof in the direction of the axis of the minimum moment of inertia extends parallel to the geometric axis of rotation (D) of the bonding head (). The invention further relates to a bonding device or an ultrasonic transducer.

Bonding device, ultrasonic transducer, and bonding method

The invention relates to an ultrasonic transducer comprising at least one sensor, particularly for use in ultrasonic bonders. At least one sensor () is arranged in/on a mounting () of the ultrasonic transducer and, in particular, by means of which a transverse extension perpendicular to a propagating exciting ultrasonic wave can be metrologically detected.

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Paderborn, Germany

Hans-Juergen Hesse