B23K20/004

ULTRASONIC TOOL AND ULTRASONIC CONNECTION DEVICE HEREIN

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.

METHOD FOR PRODUCING AN ELECTRICALLY CONDUCTIVE CONNECTION

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.

BONDING ARRANGEMENT AND BONDING TOOL

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.

DEVICE FOR HEATING AND DETERMINING AN ACTUAL TEMPERATURE OF A BONDING TOOL OF AN ULTRASONIC BONDING DEVICE

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.

APPARATUS AND METHOD FOR DETECTING THE TEMPERATURE OF A BONDING TOOL DURING LASER-ASSISTED ULTRASONIC BONDING

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.

Bonding apparatus
11367703 · 2022-06-21 · ·

A bonding apparatus is provided. This bonding apparatus uses images captured by an imaging apparatus and performs a packaging process for a semiconductor chip and additional processes other than the packaging process. The bonding apparatus is provided with: an aperture switching mechanism provided in an optical system of the imaging apparatus and capable of switching between a first aperture and a second aperture that has an aperture hole diameter greater than that of the first aperture; and a control unit which controls the aperture switching mechanism to switch to either the first aperture or the second aperture. The control unit performs the packaging process using an image captured by switching to the first aperture and performs the additional processes using an image captured by switching to the second aperture.

ELECTRIC CABLE WITH TERMINAL AND METHOD FOR MANUFACTURING ELECTRIC CABLE WITH TERMINAL

An electric cable includes a terminal, and a manufacture method thereof is to suppress shedding of wire strands from a core wire. The electric cable with terminal includes an end of an electric cable connected to the terminal. The electric cable includes a core wire that is a bundle of a plurality of wire strands. The terminal includes a connection portion in which the core wire is exposed at the end of the electric cable. The core wire is placed on the connection portion including a welded portion that is to be ultrasonic welded to the connection portion. The welded portion includes a high compression portion in which the core wire is compressed, and a low compression portion in which a position that is closer than the high compression portion to the end of the core wire is compressed at a compression lower than that of the high compression portion.

Laser soldering system

A laser soldering system is disclosed. The laser soldering system has a moving system, a gripper mounted on the moving system, a presser mounted on the moving system and having a transparent member, and a laser. The gripper grips an object and places the object at a target location on a product to be soldered. The transparent member presses the object against the product. The laser emits a laser beam through the transparent member to solder the object to the target location while the object is pressed against the product.

Joint of copper terminal and aluminium conductor and ultrasonic welding method hereof

Disclosed are a joint of a copper terminal and an aluminium conductor and an ultrasonic welding method thereof. One spacing metal layer is added between the copper terminal and the aluminium conductor, and firstly, the spacing metal layer is fixed at a welding end of a base material by means of a manner such as electroplating, pressure welding, electric arc spray welding or electromagnetic welding, and the three parts are then welded together by means of an ultrasonic welding manner. The welding method is suitable for the welding of various joints, the electrochemical corrosion resulting from the potential difference between the copper and aluminium electrodes can be effectively reduced, and the mechanical properties of the joint can be improved.

Multistage Welding Of Splices By Means Of An Ultrasonic Welding Device

A method is described for welding a splice by way of an ultrasonic welding device, the ultrasonic welding device having a sonotrode for generating ultrasonic vibrations, an anvil, a first lateral element, a second lateral element and a compaction chamber, the height of which is adjustable by varying a distance between the sonotrode and the anvil and the width of which is adjustable by varying a distance between the first lateral element and the second lateral element.