DE19902462B4 - Semiconductor component with chip-on-chip structure - Google Patents
Semiconductor component with chip-on-chip structure Download PDFInfo
- Publication number
- DE19902462B4 DE19902462B4 DE19902462A DE19902462A DE19902462B4 DE 19902462 B4 DE19902462 B4 DE 19902462B4 DE 19902462 A DE19902462 A DE 19902462A DE 19902462 A DE19902462 A DE 19902462A DE 19902462 B4 DE19902462 B4 DE 19902462B4
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- DE
- Germany
- Prior art keywords
- chip
- chips
- intermediate piece
- contact area
- component
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/065—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L27/00
- H01L25/0657—Stacked arrangements of devices
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L2224/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
- H01L2224/321—Disposition
- H01L2224/32135—Disposition the layer connector connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
- H01L2224/32145—Disposition the layer connector connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being stacked
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/484—Connecting portions
- H01L2224/4847—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a wedge bond
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73265—Layer and wire connectors
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2225/00—Details relating to assemblies covered by the group H01L25/00 but not provided for in its subgroups
- H01L2225/03—All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00
- H01L2225/04—All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00 the devices not having separate containers
- H01L2225/065—All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00 the devices not having separate containers the devices being of a type provided for in group H01L27/00
- H01L2225/06503—Stacked arrangements of devices
- H01L2225/0651—Wire or wire-like electrical connections from device to substrate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2225/00—Details relating to assemblies covered by the group H01L25/00 but not provided for in its subgroups
- H01L2225/03—All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00
- H01L2225/04—All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00 the devices not having separate containers
- H01L2225/065—All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00 the devices not having separate containers the devices being of a type provided for in group H01L27/00
- H01L2225/06503—Stacked arrangements of devices
- H01L2225/06517—Bump or bump-like direct electrical connections from device to substrate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2225/00—Details relating to assemblies covered by the group H01L25/00 but not provided for in its subgroups
- H01L2225/03—All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00
- H01L2225/04—All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00 the devices not having separate containers
- H01L2225/065—All the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/648 and H10K99/00 the devices not having separate containers the devices being of a type provided for in group H01L27/00
- H01L2225/06503—Stacked arrangements of devices
- H01L2225/06572—Auxiliary carrier between devices, the carrier having an electrical connection structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/01—Chemical elements
- H01L2924/01079—Gold [Au]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/102—Material of the semiconductor or solid state bodies
- H01L2924/1025—Semiconducting materials
- H01L2924/10251—Elemental semiconductors, i.e. Group IV
- H01L2924/10253—Silicon [Si]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/13—Discrete devices, e.g. 3 terminal devices
- H01L2924/1304—Transistor
- H01L2924/1305—Bipolar Junction Transistor [BJT]
- H01L2924/13055—Insulated gate bipolar transistor [IGBT]
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/11—Device type
- H01L2924/13—Discrete devices, e.g. 3 terminal devices
- H01L2924/1304—Transistor
- H01L2924/1306—Field-effect transistor [FET]
- H01L2924/13091—Metal-Oxide-Semiconductor Field-Effect Transistor [MOSFET]
Abstract
Halbleiterbauelement mit einem ersten Chip (1) und einem zweiten Chip (2), die übereinander angeordnet sind, wobei wenigstens einer der Chips mindestens ein Kontaktgebiet (5) auf einer inneren Oberfläche (4) aufweist, gekennzeichnet durch ein Zwischenstück (8), das zwischen dem ersten (1) und dem zweiten Chip (2) angeordnet ist und mindestens einen Abschnitt, der seitlich über mindestens einen der zwei Chips (1, 2) hinausragt, und mindestens einen elektrisch leitfähigen Bereich umfasst, der einerseits mit dem mindestens einen Kontaktgebiet (5) auf einer inneren Oberfläche (4) des ersten und/oder zweiten Chips (1, 2) elektrisch verbunden ist und andererseits ein Kontaktgebiet (5) auf dem seitlich den mindestens einen zwei Chips (1, 2) hinausrangenden Abschnitt aufweist.Semiconductor component with a first chip (1) and a second chip (2) which are arranged one above the other, at least one of the chips having at least one contact region (5) on an inner surface (4), characterized by an intermediate piece (8) which is arranged between the first (1) and the second chip (2) and comprises at least one section which projects laterally beyond at least one of the two chips (1, 2) and at least one electrically conductive region which on the one hand has contact with the at least one contact area (5) is electrically connected on an inner surface (4) of the first and / or second chip (1, 2) and, on the other hand, has a contact area (5) on the section that laterally protrudes the at least one two chips (1, 2).
Description
Die Erfindung betrifft ein Halbleiterbauelement mit einem Chip-on-Chip-Aufbau.The invention relates to a semiconductor component with a chip-on-chip structure.
Bei der "Chip on Chip" Montage wird auf ein erstes Leistungs-chip ein weiteres zweites Chip montiert. Dabei wird das zweite-Chip mit einem Isolationskleber auf die Passivierschicht des ersten Chips geklebt. Nach dem Aufkleben ist die Rückseite des zweiten Chips nicht mehr elektrisch zugänglich und kann damit nicht mehr kontaktiert werden. Bei der Herstellung von "Chip on Chip"-Bauelementen muß also die Kontaktierung des zweiten Chips immer vor dem Aufkleben auf den ersten Chip erfolgen. Das bedeutet für den Herstellungsprozeß, daß eine bestimmte Reihenfolge der Arbeitsschritte vorgegeben ist und eingehalten werden muß.In the "chip on chip" assembly, a first power chip is replaced by another second chip mounted. The second chip is made with an insulation adhesive glued to the passivation layer of the first chip. After sticking is the back of the second chip is no longer electrically accessible and therefore cannot be contacted more. In the production of "chip on chip" components, the Always make contact with the second chip before sticking it onto the first chip. That means for the manufacturing process that a certain The sequence of the work steps is specified and adhered to got to.
Ein Halbleiterbauelement mit Chin-on- Chip-Aufbau, bei
dem jedoch alle Kontakte an den Vorderseiten der Chips an geordnet
sind, ist aus der
Die Vorgabe der Reihenfolge der Arbeitsschritte bei der Herstellung des Bauelements ist aber eine starke Einschränkung, die unter Umständen eine Optimierung des Fertigungsverfahrens verhindert.The specification of the sequence of the work steps there is a strong limitation in the manufacture of the device, however possibly a Optimization of the manufacturing process prevented.
Aufgabe der Erfindung ist es, ein Halbleiterbauelement mit einem Chip-on-Chip-Aufbau ("Chip on Chip"-Bauelement) zu schaffen, bei dem nach dem Zusammenbau mindestens ein Kontakt an der Rückseite des zweiten Chips elektrisch zugänglich ist.The object of the invention is a To provide a semiconductor component with a chip-on-chip structure ("chip on chip" component), with at least one contact on the back after assembly of the second chip is electrically accessible.
Die Aufgabe wird gelöst durch das Halbleiterbauelement mit den Merkmalen nach Anspruch 1. Bevorzugte Ausführungsformen sind Gegenstand der abhängigen Ansprüche.The task is solved by the semiconductor device with the features of claim 1. Preferred embodiments are subject to the dependent Expectations.
Es wird ein Halbleiterbauelement mit einem Chip-on-Chip-Aufbau vorgeschlagen, bei dem die Kontaktierung der Rückseite des zweiten Chips auch noch nach dem ZusammenbauIt becomes a semiconductor device with a chip-on-chip structure proposed in which the contacting of the back of the second chip also after assembly
der beiden Chips möglich ist. Die grundlegende Idee der Erfindung besteht darin, die Kontaktgebiete auf den Oberflächen der Chips, die auf den inneren Flächen der Chips liegen, mit Zuführungen nach außen zu versehen. Unter "innerer Fläche" wird dabei die Oberfläche eines der Chips verstanden, die nach dem Verbinden der beiden Chips nicht mehr zugänglich ist. Entsprechend ist eine "äußere Fläche" eine Oberfläche eines der Chips, die auch noch nach dem Verbinden der beiden Chips zugänglich bleibt.of the two chips is possible. The basic idea of the invention is the contact areas on the surfaces of the chips lying on the inner surfaces of the chips with Feeders after Outside to provide. Under "inner Surface "becomes the surface of a of the chips understood after connecting the two chips not more accessible is. Accordingly, an "outer surface" is a surface of a the chips that remain accessible even after the two chips have been connected.
Das erfindungsgemäße Bauelement mit einem ersten Chip und einem zweiten Chip, die übereinander angeordnet sind, wobei wenigstens eines der Chips mindestens ein Kontaktgebiet auf einer inneren Oberfläche aufweist, umfasst ein Zwischenstück, das zwischen dem ersten und dem zweiten Chip angeordnet ist und das mindestens einen elektrisch leitfähigen Bereich umfaßt, der seitlich über mindestens einen der zwei Chips hinausragt und der mit dem mindestens einen Kontaktgebiet elektrisch verbunden ist. Somit ist es nun durch das Zwischenstück möglich, die Kontaktierung beispielsweise des zweiten Chips vorzunehmen, wenn dessen Rückseite über ein Bondpad bereits mit der Chipoberfläche verbunden ist.The component according to the invention with a first Chip and a second chip, which are arranged one above the other, wherein at least one of the chips has at least one contact area an inner surface has an intermediate piece, the is arranged between the first and the second chip and that comprises at least one electrically conductive region which sideways over protrudes at least one of the two chips and the one with the minimum a contact area is electrically connected. So now it's done the intermediate piece possible that To make contact, for example, of the second chip if its back over a Bondpad is already connected to the chip surface.
In einer bevorzugten Ausführungsform besteht das Zwischenstück aus Cu.In a preferred embodiment there is the intermediate piece made of Cu.
In einer weiteren Ausführungsform besteht das Zwischenstück aus Silizium, das eine Metallisierung auf einer ersten und/oder zweiten Oberfläche aufweist.In another embodiment there is the intermediate piece made of silicon, which is a metallization on a first and / or second surface.
Das Zwischenstück so Weit aus dem Bauelement heraus, daß der leitfähige Bereich seitlich neben den zwei Chips Platz zum Draht-Bonden bietet.The intermediate piece so far from the component out that the conductive Area to the side of the two chips offers space for wire bonding.
Ein Vorteil des erfindungsgemäßen Bauelements besteht darin, daß es einfach aufzubauen ist und bei der Herstellung des Bauelements keine zusätzlichen Verfahrensschritte erforderlich werden.An advantage of the component according to the invention is that it is easy to assemble and none in the manufacture of the component additional Procedural steps are required.
Weitere Merkmale und Vorteile ergeben sich aus der folgenden Beschreibung, bei der Bezug genommen wird auf die beigefügten Zeichnungen.Additional features and advantages result from the following description, which is incorporated by reference on the attached Drawings.
Die Oberflächen der Chips sind insoweit
zu unterscheiden, als einige Oberflächen
Beidem dargestellten Bauelement mit
den übereinander
angeordneten Chips
Um die Kontaktierung dieses Kontaktgebietes
Das in
Die elektrische Verbindung zwischen
dem Kontaktgebiet
Insbesondere ist das zweite Kontaktgebiet an
dem einen Ende des elektrisch leitfähigen Bereiches des Zwischenstücks
Daß es durch die Verwendung eines
leitfähigen
Bereiches auf dem Zwischenstück
Der erste Chip
In
Eine weitere Ausführungsform des Zwischenstücks
Bei allen Ausführungsformen des Zwischenstückes
Anwendungen eines Bauelements mit
einem Aufbau mit dem erfindungsgemäßen Zwischenstück
In
In
Ganz besonders eignet sich das erfindungsgemäße Bauelement
also für
Bauformen, die nicht gekühlt
werden müssen,
wie z.B. SMD- Bauelemente, da die Anforderungen an die Wärmeableitung
von dem oberen Chip
Das Verfahren zum Herstellen des erfindungsgemäßen Bauelements entspricht dem des "TEMPFET". Das Zwischenstück kann dabei auch analog einer Standard – Siliziumscheibe ausgebildet sein und beim Die-Bonden genauso wie eine gesägte Siliziumscheibe verarbeitet werden. The process of making the Component according to the invention corresponds to that of the "TEMPFET". The intermediate piece can can also be designed analogously to a standard silicon wafer and processed in die bonding just like a sawn silicon wafer become.
- 11
- erster Chipfirst chip
- 22
- zweiter Chipsecond chip
- 33
- äußere Fläche eines Chipsouter surface of a crisps
- 44
- innere Fläche eines Chipsinner area of a chip
- 55
- Kontaktgebiet auf einem ChipContact area on a chip
- 66
- Isolierkleberinsulating adhesive
- 77
- Leitkleberconductive adhesive
- 88th
- Zwischenstückconnecting piece
- 99
- Passivierschicht, Isolator (Fotoimid)Passivation layer, Isolator (photoimide)
- 1010
- erste Bonddrähte G2/S2 für Gate/Source vom zweiten Chipfirst Bond wires G2 / S2 for Gate / source from the second chip
- 1111
- zweite BonddrähteD2 für Drain vom zweiten Chipsecond BonddrähteD2 for drain from the second chip
- 1212
- dritte BonddrähteS1/G1 für Gate/Source vom ersten Chipthird BonddrähteS1 / G1 for gate / source from the first chip
- 1313
- Lotsolder
- 1414
- Kühlkörper aus CuHeatsink off Cu
- 1515
- Drain-Anschluß D1Drain connection D1
- 1616
- Metallschichtmetal layer
- 1717
- n+-Sin + -Si
- 1818
- Al-SchichtAl layer
Claims (5)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19902462A DE19902462B4 (en) | 1999-01-22 | 1999-01-22 | Semiconductor component with chip-on-chip structure |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19902462A DE19902462B4 (en) | 1999-01-22 | 1999-01-22 | Semiconductor component with chip-on-chip structure |
Publications (2)
Publication Number | Publication Date |
---|---|
DE19902462A1 DE19902462A1 (en) | 2000-08-10 |
DE19902462B4 true DE19902462B4 (en) | 2004-02-05 |
Family
ID=7895069
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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DE19902462A Expired - Fee Related DE19902462B4 (en) | 1999-01-22 | 1999-01-22 | Semiconductor component with chip-on-chip structure |
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DE (1) | DE19902462B4 (en) |
Families Citing this family (9)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10038968A1 (en) * | 2000-08-10 | 2002-03-07 | Infineon Technologies Ag | Circuit arrangement with at least two semiconductor bodies and a heat sink |
JP3850739B2 (en) * | 2002-02-21 | 2006-11-29 | 三菱電機株式会社 | Semiconductor device |
DE10336237A1 (en) * | 2003-08-07 | 2005-03-10 | Infineon Technologies Ag | Rectifier with self controlling regulator has MOSFET with integrated reverse diode and chips mounted on the MOSFET and on a control unit in chip on chip technology |
DE602004011195T2 (en) | 2004-05-31 | 2009-01-08 | Stmicroelectronics S.R.L., Agrate Brianza | Vertical conductive power electronics device module and corresponding mounting method |
DE102004056984A1 (en) * | 2004-11-25 | 2006-06-08 | Siemens Ag | Converter arrangement |
DE102007002807B4 (en) * | 2007-01-18 | 2014-08-14 | Infineon Technologies Ag | chip system |
DE102007018914B4 (en) | 2007-04-19 | 2019-01-17 | Infineon Technologies Ag | Semiconductor device with a semiconductor chip stack and method for producing the same |
US10084441B2 (en) | 2016-12-15 | 2018-09-25 | Infineon Technologies Dresden Gmbh | Electronic switching and reverse polarity protection circuit |
DE102020108916A1 (en) * | 2020-03-31 | 2021-09-30 | Infineon Technologies Ag | Package with clip and connector over electronic components |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5502289A (en) * | 1992-05-22 | 1996-03-26 | National Semiconductor Corporation | Stacked multi-chip modules and method of manufacturing |
-
1999
- 1999-01-22 DE DE19902462A patent/DE19902462B4/en not_active Expired - Fee Related
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5502289A (en) * | 1992-05-22 | 1996-03-26 | National Semiconductor Corporation | Stacked multi-chip modules and method of manufacturing |
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OP8 | Request for examination as to paragraph 44 patent law | ||
8127 | New person/name/address of the applicant |
Owner name: INFINEON TECHNOLOGIES AG, 81669 MUENCHEN, DE |
|
8364 | No opposition during term of opposition | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |