Siemens Aktiengesellschaft

Other

Henkel Ag & Company, Kgaa

Rolls-royce Deutschland Ltd & Co. Kg

Senju Metal Industry Co., Ltd.

Alpha Assembly Solutions Inc.

Heraeus Duetschland Gmbh & Co. Kg

Robert Boschgmbh

Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V.

Heraeus Deutschland Gmbh & Co Kg

Alpha Metals, Inc.

Klaus Wilke

Jörg Strogies

Bernd Müller

Stefan Nerreter

Martin Franke

Rüdiger Knofe

Peter Frühauf

Rene Blank

Matthias Heimann

Joerg Strogies

Hans-Jurgen Albrecht

Nora Jeske

Klaus Wittke

Franz Pfleger

Peter Prankh

Gunnar Petzold

Klaus Heinrich Georg Bartl

Wilhelm Meyrath

Hector Andrew Hamilton Steen

Werner Kruppa

Klaus Müller

Mathias Nowottnick

Nora Busche

Minoru Ueshima

Katsuaki Suganuma

Stefan Pfefferlein

Alexander Hensler

Stephan Neugebauer

Ulrich Wittreich

Thomas Bigl

Sven Rzepka

Christian Nachtigall-Schellenberg

Christian Schellenberg

Hans-Jürgen Albrecht

Ueshima Minoru

Suganuma Katsuaki

Przemyslaw Gromala

Various embodiments of the teachings herein include a semifinished product for use in the populating of a power electronics component by a connecting method. The product includes an electrically insulating prepreg frame electrically insulated. The prepreg frame is configured for surrounding an applied connecting material at a metallized installation site during the population. A material of the prepreg frame enables simultaneous processability of electrical connection and electrical insulation by compression of the insulation material in the form of the semifinished product since the processing parameters of the electrical connecting material and the semifinished product are compatible.

Semifinished product for populating with components and, method for populating same with components

The invention relates to a circuit arrangement, comprising at least one wiring carrier plate (), characterized by at least one separating element () formed in the wiring carrier plate (), which separating element divides the wiring carrier plate () into sections separated by the separating element (), wherein the transfer of vibrations from one section to another section is at least partially decoupled and/or damped by the separating element (). The invention further relates to a converter having such a circuit arrangement, and to an aircraft having a converter. The converter can comprise capacitor stacks () arranged on the wiring carrier plate (), and power semiconductors ().

Vibration-damped circuit arrangement, converter, and aircraft having such an arrangement

A method for mounting an electrical component on a substrate is disclosed. According to the method, joining is simplified using a cover, or hood, that includes a contact structure on an inner side of the hood, wherein when the hood is mounted, the contact structure is joined to the underlying structure at different joining levels simultaneously using an additional material. Moreover, a joining pressure, e.g., for diffusion or sintered bonds for electrical contacts, can be applied using such a hood.

Method for mounting an electrical component in which a hood is used, and a hood that is suitable for use in this method

Various embodiments include a capacitor structure comprising: a plurality of capacitors disposed in a support structure, wherein each of the plurality of capacitors includes a first capacitor electrode and a second capacitor electrode. The support structure includes a first electrode and a second electrode. Each of the plurality of capacitors makes electrical contact with the first electrode via the respective first capacitor electrode and with the second electrode via the respective second capacitor electrode. The support structure includes a mounting side for surface mounting, the mounting side comprising a first contact area of the first electrode and a second contact area of the second electrode. The support structure defines a cuboid interior and the capacitors are disposed in the cuboid interior. An outer side of the support structure defines an additional structural framework outside the mounting side.

Capacitor structure and power module having a power electronic component

Various embodiments include a power module comprising: a first power electronics device arranged on a first substrate board; and a second power electronics device mounted on a second substrate board. The first substrate board, the first device, the second substrate board, and the second device are arranged on a first baseplate stacked above one another or in planar fashion beside one another.

Power module having a power electronics device on a substrate board, and power electronics circuit having such a power module

A solder joint which is used in power devices and the like and which can withstand a high current density without developing electromigration is formed of a Sn&#x2014;Ag&#x2014;Bi&#x2014;In based alloy. The solder joint is formed of a solder alloy consisting essentially of 2-4 mass % of Ag, 2-4 mass % of Bi, 2-5 mass % of In, and a remainder of Sn. The solder alloy may further contain at least one of Ni, Co, and Fe.

Solder alloy for power devices and solder joint having a high current density

Various embodiments include a semiconductor component comprising: a first carrier part; a second carrier part arranged opposite the first carrier part; a semiconductor element arranged between the first carrier part and the second carrier part; a contact surface arranged on one of the parts; a contact sleeve arranged on one of the carrier parts opposite the contact surface; and a contact pin with, at one axial end, an end face providing an electrical contact connection of the contact surface and, in a region averted from said axial end, a connection region for the connection of the contact pin with the contact sleeve by means of press fitting. At least one of the first carrier part or the second carrier part comprises a printed conductor connected to the contact surface and/or to the contact sleeve.

Semiconductor component and method for producing same

Various embodiments include a solder preform for establishing a diffusion solder connection comprising: a microstructure including a solder material and a metallic material; a first joining surface for a first joining partner and a second joining surface for a second joining partner; and a diffusion zone comprising an intermetallic compound of at least some of the solder material and at least some of the metallic material. The first joining surface and the second joining surface include at least some solder material.

Solder preform for establishing a diffusion solder connection and method for producing a solder preform

The invention relates to a soldering material comprising an alloy that in addition to Sn (tin) as the major constituent, comprises 10 wt. % or less Ag (silver), 10 wt. % or less Bi (bismuth), 10 wt. % or less Sb (antimony) and 3 wt. % or less Cu (copper). Furthermore, the invention relates to a soldering material comprising a plurality of soldering components with such alloy compositions and contents in the soldering material that on fusing the soldering components an alloy is formed that comprises Sn, Ag, Bi, Sb and Cu in the abovementioned alloy contents.

Soldering material based on Sn Ag and Cu

Various embodiments of the teachings herein include power electronic circuits comprising: interconnected power modules, each with a power electronic element and a plurality of capacitors in parallel. The power electronic elements are mounted on a first side of substrate plates. The capacitors are mounted in a plurality of planes one above the other on a second side of the substrate plates. The substrate plates, with the power electronic elements forward and alongside each other, are fixed onto an assembly side of a base circuit carrier.

Power electronic circuit having a plurality of power modules

Various embodiments include an electrical assembly with: an electronic switching element electrically contacted on an underside and arranged on a flexible first wiring support; wherein the electronic switching element is electrically contacted on an upper side lying opposite the lower side; and a second wiring support arranged lying opposite the first wiring support on the upper side electrical contacting area of the electronic switching element. The first wiring support and the second wiring support each comprise a permanently elastic, electrically insulating, thermally conductive material.

Electrical assembly

Various embodiments may include an electronic assembly comprising: a first circuit carrier having a first mounting face for electronic components; a second circuit carrier having a second mounting face for electronic components; wherein the second mounting face faces the first mounting face and is connected thereto; and an electronic component connected both to the first mounting face and the second mounting face; wherein the first mounting face includes a contact region between the first circuit carrier and the component; and the contact region is flexible in a direction perpendicular to the first mounting face in comparison to an adjacent region of the first circuit carrier surrounding the contact region and in comparison to the second circuit carrier.

Electronic assembly with a component arranged between two circuit carriers, and method for joining such an assembly

A method for mounting an electrical component to a substrate may include mounting the component onto the substrate, forming a cover including a thermally softenable or hardenable material and a contacting structure defined by integrated conductor paths, mounting the cover onto a mounting side of the substrate and onto the component mounted on the substrate, such that (a) the cover laterally traverses the component, (b) first contact surfaces of the contacting structure engage with the substrate at a first joining level defined at the mounting side of the substrate, and (c) second contact surfaces of the contacting structure engage with the component at a second joining level at the top side of the component, the second joining level being different than the first joining level. After assembling the components, joining connections at the first and second joining levels may be completed by a temperature or pressure based joining process.

Method for mounting an electrical component, wherein a hood is used, and hood suitable for use in said method

A diffusion soldering method for joining an electronic component to a substrate is provided. The joining surfaces are designed such that cavities are formed in a joining gap between the component and substrate. The formation of such cavities can be provided, e.g., by depressions in a mounting surface of the component and/or in a contact surface of the substrate, the depressions being cup-shaped and/or defining channels that surround columnar structural elements, the end faces of which define the mounting surface and/or contact surface. The cavities are designed such that solder material can leak into the cavities when the component during a heating process to achieve a desired width of the joining gap. This allows for the formation of a narrow-width joining having a diffusion zone that bridges the joining gap upon soldering. In this manner, a diffusion solder connection can be produced even using standard solder.

Method for the diffusion soldering of an electronic component to a substrate

Growing community of inventors

Berlin, Germany

Klaus Wilke