EP4353055A1 - Leiterplatte für ein leistungshalbleitermodul, leistungshalbleitermodul sowie verfahren zur herstellung einer leiterplatte und eines leistungshalbleitermoduls - Google Patents
Leiterplatte für ein leistungshalbleitermodul, leistungshalbleitermodul sowie verfahren zur herstellung einer leiterplatte und eines leistungshalbleitermodulsInfo
- Publication number
- EP4353055A1 EP4353055A1 EP22735092.3A EP22735092A EP4353055A1 EP 4353055 A1 EP4353055 A1 EP 4353055A1 EP 22735092 A EP22735092 A EP 22735092A EP 4353055 A1 EP4353055 A1 EP 4353055A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- circuit board
- power semiconductor
- mounting surface
- layer
- printed circuit
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K1/00—Printed circuits
- H05K1/02—Details
- H05K1/0201—Thermal arrangements, e.g. for cooling, heating or preventing overheating
- H05K1/0203—Cooling of mounted components
- H05K1/0204—Cooling of mounted components using means for thermal conduction connection in the thickness direction of the substrate
- H05K1/0206—Cooling of mounted components using means for thermal conduction connection in the thickness direction of the substrate by printed thermal vias
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/0094—Filling or covering plated through-holes or blind plated vias, e.g. for masking or for mechanical reinforcement
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistors
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistors electrically connecting electric components or wires to printed circuits
- H05K3/34—Assembling printed circuits with electric components, e.g. with resistors electrically connecting electric components or wires to printed circuits by soldering
- H05K3/341—Surface mounted components
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/03—Conductive materials
- H05K2201/0302—Properties and characteristics in general
- H05K2201/0305—Solder used for other purposes than connections between PCB or components, e.g. for filling vias or for programmable patterns
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/095—Conductive through-holes or vias
- H05K2201/09509—Blind vias, i.e. vias having one side closed
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/095—Conductive through-holes or vias
- H05K2201/09545—Plated through-holes or blind vias without lands
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/095—Conductive through-holes or vias
- H05K2201/09572—Solder filled plated through-hole in the final product
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/095—Conductive through-holes or vias
- H05K2201/09609—Via grid, i.e. two-dimensional array of vias or holes in a single plane
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09209—Shape and layout details of conductors
- H05K2201/095—Conductive through-holes or vias
- H05K2201/09627—Special connections between adjacent vias, not for grounding vias
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
- H05K2201/09—Shape and layout
- H05K2201/09818—Shape or layout details not covered by a single group of H05K2201/09009 - H05K2201/09809
- H05K2201/0989—Coating free areas, e.g. areas other than pads or lands free of solder resist
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/04—Soldering or other types of metallurgic bonding
- H05K2203/0415—Small preforms other than balls, e.g. discs, cylinders or pillars
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/04—Soldering or other types of metallurgic bonding
- H05K2203/042—Remote solder depot on the PCB, the solder flowing to the connections from this depot
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/04—Soldering or other types of metallurgic bonding
- H05K2203/0455—PTH for surface mount device [SMD], e.g. wherein solder flows through the PTH during mounting
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/04—Soldering or other types of metallurgic bonding
- H05K2203/0465—Shape of solder, e.g. differing from spherical shape, different shapes due to different solder pads
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/05—Patterning and lithography; Masks; Details of resist
- H05K2203/0502—Patterning and lithography
- H05K2203/0545—Pattern for applying drops or paste; Applying a pattern made of drops or paste
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K2203/00—Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00
- H05K2203/13—Moulding and encapsulation; Deposition techniques; Protective layers
- H05K2203/1377—Protective layers
- H05K2203/1394—Covering open PTHs, e.g. by dry film resist or by metal disc
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/40—Forming printed elements for providing electric connections to or between printed circuits
- H05K3/42—Plated through-holes or plated via connections
- H05K3/421—Blind plated via connections
Definitions
- the present invention relates to a circuit board for a power semiconductor module and a power semiconductor module. It also relates to a method for producing such a printed circuit board and a power semiconductor module.
- the mounting area In the area in which a power semiconductor component is mounted, referred to below as the mounting area, some bores are provided which completely penetrate the printed circuit board and which are typically completely or partially filled with metal. Bores of this kind, known as “thermal vias", are not intended to create electrical connections between metallization layers, but to improve heat conduction through the printed circuit board. They are therefore typically electrically isolated from conductor track structures.
- solder depots are also provided in the assembly area.
- the power semiconductor component is placed on the circuit board in the assembly area and connected to the circuit board in a reflow process via the solder depots.
- solder depots Angered around the openings of the vias Solder mask prevents solder from penetrating the vias during the reflow process, which could lead to short circuits on the underside of the circuit board.
- a printed circuit board for a power semiconductor module having at least one top and one bottom, at least one mounting surface for a power semiconductor component being provided on the top.
- At least one solder layer provided for connecting at least one power semiconductor component to the mounting surface is arranged on the mounting surface and is divided into areas separated from one another by gaps.
- the mounting surface is used for the electrical and mechanical connection of the power semiconductor component to the printed circuit board and designates that surface on the upper side of the printed circuit board which essentially corresponds to the expansion of the power semiconductor component to be fitted and on which the electrical and mechanical connection is made.
- solder layer is divided into areas separated by gaps.
- a plurality of thermal vias are arranged in the circuit board, which extend in the area of the mounting surface from the top to the bottom of the circuit board, with an upper opening of the thermal vias being directly surrounded by a region of the solder layer and a lower opening of the vias being surrounded by a layer covered with electrically insulating material.
- the upper opening of the thermal vias designates the opening exposed on the upper side of the printed circuit board and the lower opening designates the opening of the vias exposed on the underside of the printed circuit board.
- the vias can have a metallization, i.e. at least their walls are completely or partially covered with a metallic layer in order to improve thermal conductivity.
- the vias are metallized, so that the vias each have a central through hole.
- the vias are completely filled with metal. It is also conceivable that the vias initially have no metallization, but that the metallization is only introduced during the soldering of a power semiconductor component onto the mounting surface by liquefied solder flowing through the upper opening into the vias.
- the printed circuit board has the advantage that it allows a power semiconductor component applied to the mounting surface to be cooled particularly well.
- vias and solder areas can be arranged distributed over the entire mounting surface. This enables a more even distribution of both functions (heat dissipation on the one hand and electrical and mechanical connection on the other) over the surface and, overall, a higher number of vias and a larger amount of solder.
- the upper openings of the thermal vias are not surrounded by a layer of solder resist, as was previously the case in the prior art, in order to prevent solder from penetrating into the vias during the reflow process. Rather, the penetration of solder is not disadvantageous and may even be desirable because it contributes to particularly good heat conduction. Short circuits on the underside of the printed circuit board are prevented by covering the lower openings of the vias with a layer of electrically insulating material, in particular solder resist.
- the upper openings of the thermal vias prevent the solder from spreading unevenly over the mounting surface.
- the provision of gaps between areas of the solder layer has the advantage that flux and solvent can escape through the gaps during the soldering process. During the soldering process, the gaps can be completely or partially closed by flowing solder.
- the areas of the solder layer that are separated from one another by the gaps are arranged in a geometric grid.
- the areas of the solder layer can be designed as square or rectangular areas and the gaps between the areas as narrow, straight corridors.
- the vias can also be arranged in a geometric grid, which can correspond, for example, to the grid of the areas of the solder layer.
- At least one thermal via is provided in each area of the solder layer. This is particularly advantageous because the at least one via can then fulfill the task of holding the solder material in place during the soldering process for this area. It is also conceivable that several thermal vias are arranged in each area of the solder layer.
- the layer of insulating material is formed as a continuous layer on the underside of the printed circuit board.
- a continuous layer is understood here and below to mean that the layer has no interstices. Such a continuous layer can be applied particularly easily.
- the electrically insulating layer can cover the entire underside of the circuit board. However, it can also be applied only in the area of the underside opposite the mounting surface, in which the lower openings of the vias are located, which are to be covered by the electrically insulating layer.
- the layer of insulating material is in the form of a solder resist layer. Such a layer is easy to apply and fulfills the purpose of electrical insulation.
- metallizations are arranged in the printed circuit board below the mounting surface to improve the thermal conductivity.
- the metallizations can be metal layers, for example, which have at least the lateral extension of the mounting surface and bring about heat conduction in the direction of the underside and lateral heat spreading.
- An arrangement of the metallizations below the mounting surface is understood to mean an arrangement between the mounting surface and the region of the underside of the printed circuit board that is opposite the mounting surface.
- Such metallizations are known and improve the heat dissipation of the power semiconductor module.
- the printed circuit board can be designed in particular as a PCB.
- other technologies are also conceivable in which metallic layers are embedded in an electrically insulating matrix.
- a power semiconductor module with at least one power semiconductor component is specified, which is arranged on a mounting surface of the printed circuit board described.
- the thermal vias are at least partially filled with solder. This is solder that flowed from the solder layer into the vias while the power semiconductor component was being soldered on.
- a method for producing a printed circuit board for a power semiconductor module comprises providing a printed circuit board having at least one top and one Bottom includes, being provided on the top at least one mounting surface for a power semiconductor component, wherein the circuit board has thermal vias that extend in the mounting surface from the top to the bottom of the circuit board.
- the method also includes applying a layer of solder, which is divided into regions separated from one another by gaps, to the mounting surface in such a way that upper openings of the thermal vias are each directly surrounded by a region of the layer of solder.
- the solder layer can be printed onto the top side of the printed circuit board.
- the method further includes depositing a layer of insulating material on the underside of the circuit board such that at least the bottom openings of the vias are covered by the layer of insulating material.
- the method has the advantages already described in connection with the printed circuit board.
- a method for producing a power semiconductor module includes not only the already described provision of a printed circuit board but also the application of at least one power semiconductor component to the mounting surface by means of a soldering process.
- solder from the solder layer at least partially enters the thermal vias during the soldering process.
- FIG. 1 shows a printed circuit board for a power semiconductor module during a method for producing a printed circuit board according to an embodiment of the invention in a perspective view
- FIG. 2 shows a plan view of the top side of the printed circuit board according to FIG. 1 after the application of a layer of solder;
- FIG. 3 shows a plan view of the underside of the circuit board according to FIGS. 1 and 2 after the application of an insulating layer;
- Figure 4 shows a sectional view of the printed circuit board according to Figures 2 and
- FIG. 5 shows a sectional view of a power semiconductor module after the application of a power semiconductor component to a printed circuit board according to FIG. 4;
- FIG. 6 shows a sectional view of the power semiconductor module according to FIG. 5 after a reflow process
- FIG. 7 shows a plan view of a circuit board according to an alternative embodiment
- FIG. 8 shows a plan view of a circuit board according to a further alternative embodiment.
- FIG. 1 shows a printed circuit board 1 for a power semiconductor module, which has an upper side 2 and an underside 3 opposite this.
- the printed circuit board 1 can be a PCB, for example.
- a mounting surface 4 is provided on the upper side 2 as a partial area of the upper side 2 .
- the mounting surface 4, which is indicated by the dashed line, designates the surface on which a power semiconductor component is to be applied to form a power semiconductor module. Since large amounts of heat loss occur during operation of the power semiconductor module, cooling the printed circuit board 1 in the area of the mounting surface 4 is particularly important.
- a plurality of vias 5 are introduced into the circuit board 1 in the area of the mounting surface 4 and penetrate the circuit board 1 from the top 2 to the bottom 3 .
- the vias 5 are introduced into the printed circuit board 1 as through-holes and have metallizations, in particular a lining of their inner walls with metal, for better heat conduction.
- the vias 5 have upper openings 6, which are exposed on the upper side 2 of the printed circuit board 1, and lower openings, which are not visible in FIG.
- a total of nine thermal vias 5 are provided and arranged in a geometric grid.
- FIG. 2 shows a plan view of the circuit board 1 according to FIG. 1 after a further process step for producing the circuit board 1.
- a layer of solder 8 was applied, for example printed, to the top 2 at least in the area of the mounting surface 4 .
- the solder layer 8 is applied in the form of separate areas 9 , the areas 9 being separated from one another by gaps 11 which are kept free from the solder layer 8 .
- Each of the rectangular regions 9 in the embodiment shown directly encloses an upper opening 6 of a via 5, i.e. no barrier made of solder resist is arranged around the edge of the upper openings 6.
- exactly one via 5 is provided in each area 9 of the solder layer.
- Figure 3 shows a top view of the underside 3 of the printed circuit board 1 according to Figure 1 after the application of an electrically insulating layer 10 to the underside 3 of the printed circuit board 1.
- the insulating layer 10 is applied as a continuous layer which extends over the entire Bottom 3 of the printed circuit board 1 extends and the lower openings 7 of the vias 5 are covered.
- the insulating layer 10 insulates the metallized ones Vias 5 against each other, even if solder flows into the vias 5 during a soldering process and emerges again on the underside 3 of the printed circuit board 1.
- the insulating layer 10 on the underside 3 of the printed circuit board 1 is a solder resist.
- FIG. 4 shows a sectional view of the printed circuit board 1 according to FIGS. 2 and 3.
- a metallization of the vias 5 is not shown in the figure for the sake of clarity.
- FIG. 5 shows a sectional view of the circuit board 1 according to FIGS. 1 to 4 after a further step of a method for producing a power semiconductor module.
- at least one power semiconductor component 12 was placed on top 2 of printed circuit board 1, specifically on mounting surface 4 provided for this purpose.
- Contact pads (not shown) of power semiconductor component 12 can be brought into contact with regions 9 of solder layer 8.
- FIG. 6 shows the power semiconductor module 13 according to FIG. 5 after a reflow process.
- liquefied solder from the solder layer 8 has partially entered the vias 5 during the soldering process.
- the gaps 11 between areas of the solder layer 8 have also partially closed.
- flux and solvent can escape from the solder layer 8 through the interstices 11 and the individual areas 9 of the solder layer 8 can completely or partially run into one another.
- solder layer 8 are surrounded, prevent the solder of the solder layer 8 from being distributed unevenly over the mounting surface 4 .
- the power semiconductor component 12 is thus uniformly connected to the printed circuit board 1 and the printed circuit board 1 contains effective thermally conductive structures below the mounting surface 4 with the vias 5 that are completely or partially filled with metal.
- FIG. 7 shows a further embodiment of the circuit board 1 in which four upper openings 6 of the vias 5 are exposed in each area 9 of the solder layer 8 . A uniform distribution of solder on the mounting surface 4 is also ensured in this embodiment.
- FIG. 8 shows a further embodiment of the printed circuit board 1, which differs from that shown in FIG. 2 in that the individual regions 9 of the solder layer 8 are embodied in a diamond shape and are arranged in a grid.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Structure Of Printed Boards (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102021114658.5A DE102021114658A1 (de) | 2021-06-08 | 2021-06-08 | Leiterplatte für ein Leistungshalbleitermodul, Leistungshalbleitermodul sowie Verfahren zur Herstellung einer Leiterplatte und eines Leistungshalbleitermoduls |
| PCT/EP2022/065483 WO2022258656A1 (de) | 2021-06-08 | 2022-06-08 | Leiterplatte für ein leistungshalbleitermodul, leistungshalbleitermodul sowie verfahren zur herstellung einer leiterplatte und eines leistungshalbleitermoduls |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP4353055A1 true EP4353055A1 (de) | 2024-04-17 |
Family
ID=82319785
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP22735092.3A Pending EP4353055A1 (de) | 2021-06-08 | 2022-06-08 | Leiterplatte für ein leistungshalbleitermodul, leistungshalbleitermodul sowie verfahren zur herstellung einer leiterplatte und eines leistungshalbleitermoduls |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US12604391B2 (de) |
| EP (1) | EP4353055A1 (de) |
| CN (1) | CN117426144A (de) |
| DE (1) | DE102021114658A1 (de) |
| WO (1) | WO2022258656A1 (de) |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4226168A1 (de) | 1992-08-07 | 1994-02-10 | Sel Alcatel Ag | Verfahren zur Herstellung einer elektronischen Baugruppe |
| US5848466A (en) | 1996-11-19 | 1998-12-15 | Motorola, Inc. | Method for forming a microelectronic assembly |
| DE29623190U1 (de) | 1996-11-28 | 1997-12-11 | Siemens AG, 80333 München | Mehrschichtleiterplatte |
| DE19842590A1 (de) * | 1998-09-17 | 2000-04-13 | Daimler Chrysler Ag | Verfahren zur Herstellung von Schaltungsanordnungen |
| DE19909505C2 (de) | 1999-03-04 | 2001-11-15 | Daimler Chrysler Ag | Verfahren zur Herstellung von Schaltungsanordnungen |
| JP3639505B2 (ja) | 2000-06-30 | 2005-04-20 | インターナショナル・ビジネス・マシーンズ・コーポレーション | プリント配線基板及び半導体装置 |
| DE10335129B3 (de) | 2003-07-31 | 2005-06-23 | Kathrein-Werke Kg | Kühlanordnung für auf einer Leiterplatte angeordnete elektrische Bauelemente, insbesondere SMD-Bausteine |
| US7554193B2 (en) * | 2005-08-16 | 2009-06-30 | Renesas Technology Corp. | Semiconductor device |
| KR20160000293A (ko) * | 2014-06-24 | 2016-01-04 | 삼성전자주식회사 | 탭 핀에 타이바가 없는 반도체 모듈 |
| AT516724B1 (de) | 2014-12-22 | 2016-08-15 | Zizala Lichtsysteme Gmbh | Herstellen einer schaltungsanordnung mit thermischen durchkontaktierungen |
| JP2017152459A (ja) | 2016-02-23 | 2017-08-31 | カルソニックカンセイ株式会社 | 基板及び半導体装置の基板実装方法 |
| AT520301B1 (de) | 2017-10-12 | 2019-03-15 | Zkw Group Gmbh | Verfahren zum erzeugen einer leiterplatte mit thermischen durchkontaktierungen, sowie leiterplatte |
-
2021
- 2021-06-08 DE DE102021114658.5A patent/DE102021114658A1/de active Pending
-
2022
- 2022-06-08 CN CN202280040855.XA patent/CN117426144A/zh active Pending
- 2022-06-08 WO PCT/EP2022/065483 patent/WO2022258656A1/de not_active Ceased
- 2022-06-08 US US18/565,359 patent/US12604391B2/en active Active
- 2022-06-08 EP EP22735092.3A patent/EP4353055A1/de active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE102021114658A1 (de) | 2022-12-08 |
| US20240260168A1 (en) | 2024-08-01 |
| WO2022258656A1 (de) | 2022-12-15 |
| US12604391B2 (en) | 2026-04-14 |
| CN117426144A (zh) | 2024-01-19 |
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