DE102016214741B4 - Structure for at least one carrier fitted with electronic and/or electrical components - Google Patents
Structure for at least one carrier fitted with electronic and/or electrical components Download PDFInfo
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- DE102016214741B4 DE102016214741B4 DE102016214741.2A DE102016214741A DE102016214741B4 DE 102016214741 B4 DE102016214741 B4 DE 102016214741B4 DE 102016214741 A DE102016214741 A DE 102016214741A DE 102016214741 B4 DE102016214741 B4 DE 102016214741B4
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- H01L23/373—Cooling facilitated by selection of materials for the device or materials for thermal expansion adaptation, e.g. carbon
- H01L23/3735—Laminates or multilayers, e.g. direct bond copper ceramic substrates
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- C04B37/00—Joining burned ceramic articles with other burned ceramic articles or other articles by heating
- C04B37/02—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles
- C04B37/021—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles in a direct manner, e.g. direct copper bonding [DCB]
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- C04B37/023—Joining burned ceramic articles with other burned ceramic articles or other articles by heating with metallic articles characterised by the interlayer used
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Abstract
Aufbau für mindestens einen mit elektronischen und/oder elektrischen Bauelementen bestückten Träger (1), bei dem auf einer Oberfläche des Trägers (1), der aus einem dielektrischen Werkstoff gebildet ist, elektrische Leiterbahnen (2) angeordnet sind, und
an der gegenüberliegenden Oberfläche des Trägers (1) eine elektrisch leitfähige Schicht (7) und/oder ein elektrisch leitfähiges Bauelement (4) angeordnet und mit dem Träger (1) verbunden ist, wobei
im äußeren Randbereich des Trägers (1) mindestens ein mit einem elektrischen leitenden Werkstoff gebildetes Element (5) angeordnet ist, und
das mindestens eine mit einem elektrisch leitenden Werkstoff gebildete Element (5) mit einer elektrischen Spannungsquelle verbunden ist, und am äußeren Rand der elektrischen Leiterbahn (2) angeordnet und
nicht mit einer elektrischen Leiterbahn (2) verbunden ist; wobei
die radial äußere Stirnkante(n) des/der Elemente(s) (5) in einem Abstand zum radial äußeren Rand einer elektrischen Leiterbahn (2) angeordnet ist/sind.
Structure for at least one carrier (1) equipped with electronic and/or electrical components, in which electrical conductor tracks (2) are arranged on a surface of the carrier (1), which is formed from a dielectric material, and
an electrically conductive layer (7) and/or an electrically conductive component (4) is arranged on the opposite surface of the carrier (1) and connected to the carrier (1), wherein
at least one element (5) made of an electrically conductive material is arranged in the outer edge region of the carrier (1), and
the at least one element (5) formed from an electrically conductive material is connected to an electrical voltage source and is arranged on the outer edge of the electrical conductor track (2) and
is not connected to an electrical conductor track (2); whereby
the radially outer end edge(s) of the element(s) (5) is/are arranged at a distance from the radially outer edge of an electrical conductor track (2).
Description
Die Erfindung betrifft einen Aufbau für mindestens einen mit elektronischen und/ oder elektrischen Bauelementen bestückten Träger, der insbesondere in der Leistungselektronik mit erhöhten elektrischen Spannungen einsetzbar ist.The invention relates to a structure for at least one carrier equipped with electronic and/or electrical components, which can be used in particular in power electronics with increased electrical voltages.
Üblicherweise werden Träger, die mit Leistungshalbleitern als aktive Bauelemente und mit Transformatoren, induktiven Elementen, Kondensatoren oder auch Sensoren und Messwiderständen als passive Bauelemente bestückt sind, wegen der Erwärmung während des Betriebs gekühlt, um die gewünschten Eigenschaften, Beschädigungen oder gar den Totalausfall zu vermeiden. Die Träger sind dabei aus einem dielektrischen Werkstoff, insbesondere einem keramischen Werkstoff gebildet. Auf der Oberfläche eines Trägers sind elektrische Leiterbahnen ausgebildet, mit denen elektrisch leitende Verbindungen von und zu Leistungshalbleiterelementen und ggf. passiven Bauelementen geführt sind.Usually, carriers that are equipped with power semiconductors as active components and with transformers, inductive elements, capacitors or also sensors and measuring resistors as passive components are cooled because of the heating during operation in order to avoid the desired properties, damage or even total failure. The carriers are formed from a dielectric material, in particular a ceramic material. Electrical conductor tracks are formed on the surface of a carrier, with which electrically conductive connections are routed from and to power semiconductor elements and possibly passive components.
Der Träger ist außerdem üblicherweise auf einer Bodenplatte angeordnet, die in der Regel an Erdpotential angeschlossen ist. Zum Zwecke der Kühlung ist an der gegenüberliegenden Seite der Bodenplatte mindestens ein Kühlelement angeordnet, um insbesondere die Leistungshalbleiterelemente vor einer Erwärmung auf zu hohe Temperaturen während des Betriebes zu schützen.The carrier is also usually arranged on a base plate, which is usually connected to ground potential. For the purpose of cooling, at least one cooling element is arranged on the opposite side of the base plate, in order in particular to protect the power semiconductor elements from heating up to excessively high temperatures during operation.
Auch aus diesem Grund ist man bestrebt, die Dicke des Trägers so klein wie möglich zu halten, um einen möglichst niedrigen thermischen Widerstand zwischen Kühlelement(en) und Leistungshalbleiterelementen einhalten zu können. Eine geringe Dicke des Trägers führt weiterhin dazu, dass man die hohen Werkstoffkosten des Dielektrikums reduzieren kann.For this reason too, efforts are made to keep the thickness of the carrier as small as possible in order to be able to maintain the lowest possible thermal resistance between the cooling element(s) and the power semiconductor elements. A small thickness of the carrier also means that the high material costs of the dielectric can be reduced.
Es hat sich gezeigt, dass insbesondere beim Betrieb der Leistungshalbleiterelemente mit hohen elektrischen Spannungen, also elektrischen Spannungen die größer als 1200 V sind, Probleme auftreten können, die zur Beschädigung und sogar zum Totalausfall eines solchen Aufbaus führen können.It has been shown that, particularly when operating the power semiconductor elements with high electrical voltages, ie electrical voltages greater than 1200 V, problems can arise which can lead to damage and even total failure of such a structure.
Dabei treten insbesondere im zum äußeren Rand des Trägers weisenden Kantenbereich der elektrischen Leiterbahnen, die auf der Oberfläche des Trägers, an der die Leistungshalbleiterelemente angeordnet sind, elektrische Entladungen insbesondere elektrische Teilentladungen infolge einer Ausbildung elektrischer Felder mit erhöhter Feldstärke auf, die über den äußeren Rand in Richtung Bodenplatte erfolgen. Diese Entladungen führen zur Degradation des Aufbaus und auch der Isolation und zur Reduzierung der Lebensdauer oder schlicht zu unerwünscht erhöhten elektrischen Isolationsströmen.In this case, electrical discharges, in particular electrical partial discharges, occur in particular in the edge region of the electrical conductor tracks pointing towards the outer edge of the carrier, which on the surface of the carrier on which the power semiconductor elements are arranged, as a result of the formation of electrical fields with increased field strength, which spread over the outer edge into in the direction of the base plate. These discharges lead to degradation of the structure and the insulation and to a reduction in service life or simply to undesirably increased electrical insulation currents.
So ist aus
In
Eine induktivitätsarme Schaltungsanordnung bzw. Schaltungsaufbau für Leistungshalbleitermodule geht aus
Es ist daher Aufgabe der Erfindung, Möglichkeiten zur Vermeidung von unerwünscht hohen elektrischen Feldstärken bei einem Aufbau, bei dem auf einem Träger aus dielektrischem Werkstoff auf dessen Oberfläche elektrische Leiterbahnen von und zu Leistungshalbleiterelementen geführt sind, und der Träger auf einer Bodenplatte angeordnet ist, anzugeben, die zumindest deren Ursache und Auswirkung reduzieren und dabei marginalen Aufwand und Kosten hervorzurufen.It is therefore an object of the invention to specify ways of avoiding undesirably high electric field strengths in a structure in which electrical conductor tracks are routed from and to power semiconductor elements on a carrier made of dielectric material on the surface thereof, and the carrier is arranged on a base plate. which at least reduce their cause and effect while causing marginal effort and costs.
Erfindungsgemäß wird diese Aufgabe mit einem Aufbau, der die Merkmale des Anspruchs 1 aufweist, gelöst. Vorteilhafte Ausgestaltungen und Weiterbildungen der Erfindung können mit in untergeordneten Ansprüchen bezeichneten Merkmalen realisiert werden.According to the invention, this object is achieved with a structure having the features of
Bei dem erfindungsgemäßen Aufbau für mindestens einen mit elektronischen und/oder elektrischen Bauelementen bestückten Träger, sind auf einer Oberfläche des Trägers, der aus einem dielektrischen Werkstoff gebildet ist, elektrische Leiterbahnen sowie ggf. mindestens ein Leistungshalbleiterelement angeordnet. An der gegenüberliegenden Oberfläche des Trägers ist eine elektrisch leitfähige Schicht oder ein elektrisch leitfähiges Bauelement angeordnet und mit dem Träger verbunden. Ein elektrisch leitfähiges Bauelement kann beispielsweise eine Bodenplatte oder ein Kühlkörper sein.In the structure according to the invention for at least one carrier equipped with electronic and/or electrical components, electrical conductor tracks and optionally at least one power semiconductor element are arranged on a surface of the carrier, which is formed from a dielectric material. An electrically conductive layer or an electrically conductive component is arranged on the opposite surface of the carrier and is connected to the carrier. An electrically conductive component can be a base plate or a heat sink, for example.
Im äußeren Randbereich des Trägers ist mindestens ein mit einem elektrischen leitenden Werkstoff gebildetes Element angeordnet, das mit einer elektrischen Leiterbahn oder einer elektrischen Spannungsquelle elektrisch leitend verbunden ist.At least one element formed with an electrically conductive material is arranged in the outer edge region of the carrier, which element is electrically conductively connected to an electrical conductor track or an electrical voltage source.
Das mindestens eine mit einem elektrisch leitenden Werkstoff gebildete Element ragt über den äußeren Rand der jeweiligen elektrischen Leiterbahn hinaus und kann dabei in einem Winkel in Bezug zur Oberfläche des Trägers ausgerichtet, bogenförmig, wellenförmig, mit konvexer Oberfläche oder als Erhebung ausgebildet sein. Mindestens ein elektrisch leitendes Element kann am äußeren Rand einer elektrischen Leiterbahn angeordnet sein.The at least one element formed with an electrically conductive material projects beyond the outer edge of the respective electrical conductor track and can be aligned at an angle in relation to the surface of the carrier, curved, wavy, with a convex surface or formed as a survey. At least one electrically conductive element can be arranged on the outer edge of an electrical conductor track.
Der äußere Rand des mindestens einen mit einem elektrisch leitenden Werkstoff gebildeten Elements weist einen größeren Abstand zur jeweiligen Trägeroberfläche auf, als sein(e) Befestigungspunkt(e) am Träger. Dadurch kann eine gezielte Beeinflussung elektrischer Felder in diesem Randbereich erreicht werden, die elektrische Entladungen, insbesondere Teilentladungen, reduzieren oder verhindern können.The outer edge of the at least one element formed with an electrically conductive material is at a greater distance from the respective carrier surface than its attachment point(s) on the carrier. As a result, a targeted influencing of electric fields in this edge area can be achieved, which can reduce or prevent electric discharges, in particular partial discharges.
Der Abstand sollte um mindestens 0,5 mm vergrößert und die radial äußere Stirnkante des/ der Elemente(s) soll in einem Abstand zum äußeren Rand einer elektrischen Leiterbahn angeordnet sein.The distance should be increased by at least 0.5 mm and the radially outer front edge of the element(s) should be arranged at a distance from the outer edge of an electrical conductor track.
Ein oder mehrere elektrisch leitfähige(s) Element(e), das/die am nach außen weisenden Rand einer elektrischen Leiterbahn als Erhebung auf der Oberfläche der jeweiligen elektrischen Leiterbahn angeordnet ist/sind, sollte(n) eine Höhe über die Oberfläche der jeweiligen elektrischen Leiterbahn von ebenfalls mindestens 0,5 mm aufweisen. Dies kann auch mit einer am oberen Rand von Erhebungen angeordneten Abwinkelung in Form eines Absatzes oder Flansches erreicht werden.One or more electrically conductive element(s) that is/are arranged on the outward-facing edge of an electrical conductor track as a bump on the surface of the respective electrical conductor track should have a height above the surface of the respective electrical Also have a conductor track of at least 0.5 mm. This can also be achieved with a bend in the form of a shoulder or flange arranged at the upper edge of elevations.
In einer weiteren erfindungsgemäßen Alternative, die zusätzlich angewandt werden kann, ist der Abstand zwischen der der Bodenplatte zugewandten Oberfläche des Trägers in einem kritischen Bereich des äußeren Randes des Trägers zur dem Träger zugewandten Oberfläche der Bodenplatte in Bezug zum Abstand zwischen dem Oberflächenbereich des Trägers in dem elektrische Leiterbahnen ausgebildet sind und der Oberfläche der Bodenplatte in diesem Bereich vergrößert oder verändert oder die dem Träger zugewandte Oberfläche des elektrisch leitfähigen Bauelements kann im kritischen Bereich mit Erhebungen und Vertiefungen strukturiert sein oder im kritischen Bereich sind auf der Oberfläche des Trägers keine elektrische Leiterbahn ausgebildet.In a further alternative according to the invention, which can be additionally applied, the distance between the surface area of the carrier facing the base plate in a critical area of the outer edge of the carrier to the surface area of the base plate facing the carrier is in relation to the distance between the surface area of the carrier in the electrical conductor tracks are formed and the surface of the base plate is enlarged or changed in this area, or the surface of the electrically conductive component facing the carrier can be structured with elevations and depressions in the critical area, or no electrical conductor tracks are formed on the surface of the carrier in the critical area.
Der kritische Bereich erstreckt sich dabei ausgehend vom jeweiligen radial äußeren Rand der jeweiligen elektrischen Leiterbahn in Richtung äußerem Rand des Trägers bis mindestens zu diesem äußeren Rand des Trägers. Der kritische Bereich kann aber auch weiter nach außen reichend gewählt werden, so dass der Abstand zwischen den aufeinander zu weisenden Oberflächen von Träger und Bodenplatte auch in einem Bereich größer ist, als dies unmittelbar im Bereich der Trägerfläche der Fall ist.In this case, the critical region extends, starting from the respective radially outer edge of the respective electrical conductor track, in the direction of the outer edge of the carrier up to at least this outer edge of the carrier. However, the critical area can also be selected to extend further outwards, so that the distance between the surfaces of the carrier and base plate facing one another is also greater in one area than is the case directly in the area of the carrier surface.
Der Abstand oder die Ausbildung von Erhebungen und Vertiefungen im kritischen Bereich kann durch einen lokal gezielten Werkstoffabtrag an der der Bodenplatte zugewandten Oberfläche des Trägers und/oder an der dem Träger zugewandten Oberfläche der Bodenplatte im kritischen Bereich und/oder einer vergrößerten Dicke der Bodenplatte in dem Oberflächenbereich des Trägers in dem elektrische Leiterbahnen ausgebildet sind, vergrößert oder verändert werden. Dies kann auch mit einer sich verändernden Dicke einer elektrisch leitfähigen Schicht, die zwischen dem Träger und dem elektrisch leitfähigen Bauelement erreicht werden.The distance or the formation of elevations and depressions in the critical area can be reduced by locally targeted removal of material on the surface of the carrier facing the base plate and/or on the surface of the base plate facing the carrier in the critical area and/or an increased thickness of the base plate in the Surface area of the carrier in which electrical conductor tracks are formed can be enlarged or changed. This can also be achieved with a changing thickness of an electrically conductive layer between the carrier and the electrically conductive component.
Ein oder mehrere Element(e) kann/können aus einem Metall beispielsweise Kupfer oder Aluminium oder mit einem Polymer, das mit einer elektrisch leitenden Beschichtung versehen ist oder in dem elektrisch leitende Partikel mit einem Anteil oberhalb der Perkolationsschwelle enthalten sind, gebildet sein.One or more element(s) can be formed from a metal, for example copper or aluminum, or with a polymer which is provided with an electrically conductive coating or in which electrically conductive particles are contained in a proportion above the percolation threshold.
Mehrere Elemente können fingerförmig ausgebildet und in einem Abstand zueinander angeordnet sein. Ein oder mehrere Element(e) kann/können Durchbrechungen aufweisen und insbesondere mit Perforationen oder gitterförmig ausgebildet sein, so dass sie ähnlich wie ein Faradayscher Käfig ausgebildet sind.A plurality of elements can be finger-shaped and arranged at a distance from one another. One or more element(s) can have openings and in particular be designed with perforations or in the form of a grid, so that they are designed similar to a Faraday cage.
Das/die Element(e) kann/können stoff-, form- und/oder kraftschlüssig, insbesondere durch Niedertemperatursinterung, Kleben, Löten, Widerstandsschweißen, Ultraschallschweißen oder Diffusionsschweißen oder -löten mit dem Träger verbunden sein. Eine formschlüssige Verbindung kann durch Biegen oder Clinchen hergestellt werden. Kraftschlüssige Verbindungen lassen sich mit Verbindungselementen, wie z.B. Nieten herstellen. The element(s) can be connected to the carrier materially, positively and/or non-positively, in particular by low-temperature sintering, gluing, soldering, resistance welding, ultrasonic welding or diffusion welding or soldering. A positive connection can be made by bending or clinching. Force-locking connections can be made with connecting elements such as rivets.
Das Element kann gleichzeitig zur elektrischen Stromführung genutzt werden und somit als elektrischer Anschluss auf dem Träger fungieren. Dazu ist es an eine elektrische Spannungsquelle angeschlossen. Das/die Element(e) ist aber nicht mit einer elektrischen Leiterbahn verbunden.At the same time, the element can be used to conduct electrical current and thus function as an electrical connection on the carrier. To do this, it is connected to an electrical voltage source. However, the element(s) is/are not connected to an electrical conductor track.
Die Verbindung kann auch nur teilweise erfolgen und aus elektrischer Sicht derart ausgeführt sein, dass sich insbesondere bei transienten elektrischen Spannungsänderungen am Träger ein ähnliches elektrisches Potential an dem Element einstellt.The connection can also be only partial and, from an electrical point of view, can be designed in such a way that a similar electrical potential is established on the element, particularly in the event of transient electrical voltage changes on the carrier.
Es besteht auch die Möglichkeit, das mindestens eine Element generativ durch ein Druckverfahren dreidimensional auszubilden. Dabei kann gleichzeitig eine stoffschlüssige Verbindung und ggf. eine elektrisch leitende Verbindung zu einer entsprechend angeordneten elektrischen Leiterbahn ausgebildet und erreicht werden. Elemente können aber auch mit einem Stanz- oder Prägeverfahren bzw. mittels Metall- oder Kunststoffspritzen aus einem geeigneten elektrisch leitfähigen Werkstoff hergestellt werden. Weitere Möglichkeiten zur Herstellung sind Lasersintern oder Laserschweißen.There is also the possibility of generatively forming the at least one element three-dimensionally by means of a printing process. At the same time, a material connection and possibly a electrically conductive connection to a correspondingly arranged electrical conductor track can be formed and achieved. However, elements can also be produced from a suitable electrically conductive material using a stamping or embossing process or by means of metal or plastic injection molding. Other manufacturing options are laser sintering or laser welding.
Mindestens ein Leistungshalbleiterelement kann direkt auf der dem Träger abgewandten Oberfläche des mindestens einen Elements angeordnet und dort fixiert werden.At least one power semiconductor element can be arranged directly on the surface of the at least one element facing away from the carrier and fixed there.
Mit der Erfindung können die unerwünschten elektrischen Entladungen insbesondere Teilentladungen zumindest nahezu vollständig vermieden bzw. in ihrer Wirkung erheblich reduziert werden.With the invention, the undesired electrical discharges, in particular partial discharges, can be avoided at least almost completely or their effect can be significantly reduced.
Nachfolgend soll die Erfindung beispielhaft näher erläutert werden.The invention will be explained in more detail below by way of example.
Dabei zeigen:
-
1 in einer seitlichen Schnittdarstellung und einer Draufsicht ein Beispiel eines erfindungsgemäßen Aufbaus mit einem zusätzlichen an einem Träger befestigten Element und -
2 einen herkömmlichen Aufbau und ein weiteres Beispiel eines erfindungsgemäßen Aufbaus jeweils in einer Schnittdarstellung.
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1 in a side sectional view and a plan view, an example of a structure according to the invention with an additional element fastened to a carrier and -
2 a conventional structure and a further example of a structure according to the invention, each in a sectional view.
In
In nichtdargestellter Weise ist die Bodenplatte als elektrisch leitfähiges Bauelement 4 an Erdpotential angeschlossen und durch den Träger 1 können elektrisch leitende Durchkontaktierungen, beispielweise bis zur elektrisch leitfähigen Schicht 7 ausgebildet sein. Es können auch Draht- oder Bandbondverbindungen an die nach außen weisende Oberfläche von Leistungshalbleiterelementen 3 oder passiven Bauelementen geführt sein, was ebenfalls nicht gezeigt ist.In a way that is not shown, the base plate is connected to ground potential as an electrically
Wesentlich ist die Anordnung eines Elements 5, das bei dem gezeigten Beispiel ein Kupferblech mit einer Dicke von 0,05 mm bis 3 mm ist. Das Element 5 ist bei diesem Beispiel an seinen äußeren Rändern, die über die äußeren Ränder der elektrischen Leiterbahnen 2 hinausragen, nach oben gebogen, so dass der äußere Rand und damit die äußeren Stirnkanten des mindestens einen Elements 5 einen größeren Abstand zur jeweiligen Trägeroberfläche aufweist/aufweisen, als sein(e) Befestigungspunkt(e) am Träger 1. Der vergrößerte Abstand bis zur Stirnkante des Elements 5 liegt bei 0,5 mm und 10 mm.What is important is the arrangement of an
Anstelle eines gebogenen kann auch ein am Rand abgewinkeltes Element 5 eingesetzt werden.Instead of a curved one, an
In nicht in
Ein oder mehrere Element(e) 5 kann/können aber auch so ausgebildet sein, wie dies im allgemeinen Teil der Beschreibung bereits erläutert worden ist.However, one or more element(s) 5 can also be designed as has already been explained in the general part of the description.
Der in
In
Das in der unteren Darstellung von
In nichtdargestellter Form kann aber auch allein oder zusätzlich die Bodenplatte als elektrisch leitfähiges Bauelement 4 unterhalb der Fläche(n), auf denen elektrische Leiterbahnen 2 auf dem Träger 1 ausgebildet sind, eine größere Dicke als im übrigen Bereich der Bodenplatte 4 aufweisen.In a form that is not shown, however, the base plate alone or additionally as an electrically
Der Abstand zwischen der Oberfläche des Trägers 1, die in Richtung Bodenplatte 4 weist und der dem Träger 1 zugewandten Oberfläche der Bodenplatte als elektrisch leitfähiges Bauelement 4 im kritischen Bereich 6 betrug 6 mm.The distance between the surface of the
Die elektrisch leitfähigen Schichten 7 waren aus Kupfer und SAC-Lotwerkstoff gebildet.The electrically
Claims (8)
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Citations (5)
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US5986218A (en) | 1995-11-08 | 1999-11-16 | Mitsubishi Denki Kabushiki Kaisha | Circuit board with conductor layer for increased breakdown voltage |
EP1063700A2 (en) | 1999-06-22 | 2000-12-27 | Siemens Aktiengesellschaft | Substrate for high voltage modules |
DE19959248A1 (en) | 1999-12-08 | 2001-06-28 | Daimler Chrysler Ag | Insulation improvement for high-performance semiconductor modules |
DE10237561C1 (en) | 2002-08-16 | 2003-10-16 | Semikron Elektronik Gmbh | Power semiconductor circuit device has DC and AC terminal leads extending parallel to substrate and/or connector paths and provided with surface elements for bonding wire connections |
DE102008026347A1 (en) | 2008-05-31 | 2010-02-18 | Semikron Elektronik Gmbh & Co. Kg | Power-electronic arrangement, has electrically conducting regions arranged in edge region, where arrangement between one of conducting regions and base body comprises electrically conductive connection |
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2016
- 2016-08-09 DE DE102016214741.2A patent/DE102016214741B4/en active Active
Patent Citations (5)
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US5986218A (en) | 1995-11-08 | 1999-11-16 | Mitsubishi Denki Kabushiki Kaisha | Circuit board with conductor layer for increased breakdown voltage |
EP1063700A2 (en) | 1999-06-22 | 2000-12-27 | Siemens Aktiengesellschaft | Substrate for high voltage modules |
DE19959248A1 (en) | 1999-12-08 | 2001-06-28 | Daimler Chrysler Ag | Insulation improvement for high-performance semiconductor modules |
DE10237561C1 (en) | 2002-08-16 | 2003-10-16 | Semikron Elektronik Gmbh | Power semiconductor circuit device has DC and AC terminal leads extending parallel to substrate and/or connector paths and provided with surface elements for bonding wire connections |
DE102008026347A1 (en) | 2008-05-31 | 2010-02-18 | Semikron Elektronik Gmbh & Co. Kg | Power-electronic arrangement, has electrically conducting regions arranged in edge region, where arrangement between one of conducting regions and base body comprises electrically conductive connection |
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