WO2006067018A1 - Schaltungsanordnung auf einem substrat und verfahren zum herstellen der schaltungsanordnung - Google Patents
Schaltungsanordnung auf einem substrat und verfahren zum herstellen der schaltungsanordnung Download PDFInfo
- Publication number
- WO2006067018A1 WO2006067018A1 PCT/EP2005/056192 EP2005056192W WO2006067018A1 WO 2006067018 A1 WO2006067018 A1 WO 2006067018A1 EP 2005056192 W EP2005056192 W EP 2005056192W WO 2006067018 A1 WO2006067018 A1 WO 2006067018A1
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- WIPO (PCT)
- Prior art keywords
- substrate
- control contact
- deposition
- circuit arrangement
- insulating layer
- Prior art date
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- H01L23/488—Arrangements for conducting electric current to or from the solid state body in operation, e.g. leads, terminal arrangements ; Selection of materials therefor consisting of soldered or bonded constructions
- H01L23/498—Leads, i.e. metallisations or lead-frames on insulating substrates, e.g. chip carriers
- H01L23/49838—Geometry or layout
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- H01L23/538—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames the interconnection structure between a plurality of semiconductor chips being formed on, or in, insulating substrates
- H01L23/5389—Arrangements for conducting electric current within the device in operation from one component to another, i.e. interconnections, e.g. wires, lead frames the interconnection structure between a plurality of semiconductor chips being formed on, or in, insulating substrates the chips being integrally enclosed by the interconnect and support structures
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Definitions
- the invention relates to a circuit arrangement on a substrate and to a method for producing the circuit arrangement.
- the circuit arrangement is for example a
- the power semiconductor module has, for example, a plurality of electrically controllable power semiconductor components combined on one or more substrates and connected to one another. A used thereby electrically controllable
- Power semiconductor device is for example a MOSFET (Metal Oxide Semiconductor Field Effect Transistor) or an IGBT (Insulated Gate Bipolar Transistor). These controllable power semiconductor components are characterized by the fact that high currents can be switched in the kA range.
- MOSFET Metal Oxide Semiconductor Field Effect Transistor
- IGBT Insulated Gate Bipolar Transistor
- a power semiconductor module and a method for producing the power semiconductor module is known, for example, from WO 03/030247 A2.
- a power semiconductor component is arranged on a substrate (circuit carrier).
- the substrate is, for example, a DCB (Direct Copper Bonding) substrate, which consists of a carrier layer of a ceramic material, on both sides of which electrically conductive layers of copper (copper foils) are applied.
- the ceramic material is, for example, aluminum oxide (Al 2 O 3 ).
- the power semiconductor components of the known power semiconductor module are not electrically contacted via bonding wires.
- the electrical contacting is planar and large area.
- the procedure is as follows: onto one of the electrically conductive layers of copper of the DCB Substrate, a power semiconductor device is soldered such that an away from the substrate-facing electrical contact surface of the power semiconductor device is present.
- the power semiconductor component is, for example, a MOSFET.
- the contact area of the MOSFET is a source, gate, or drain chip area of the MOSFET.
- a plastic film based on polyimide or epoxy is laminated to the power semiconductor component and to the substrate under vacuum, so that the plastic film is tightly connected to the power semiconductor component and the substrate.
- the plastic film covers the power semiconductor device and the substrate.
- Power semiconductor device is generated, a window in the plastic film.
- the window is generated for example by laser ablation.
- the corresponding contact surface of the power semiconductor device is exposed.
- the electrical contacting of the contact surface takes place.
- a mask is applied to the plastic film, which leaves the contact surface and regions of the plastic film for a connecting line to the contact surface.
- a continuous layer of an electrically conductive material is produced by a plurality of deposits on the contact surface and on the free regions of the plastic film.
- the connecting line for making electrical contact with the contact surface of the power semiconductor component is formed. The result is a power semiconductor module with a multilayer structure of electrically insulating and electrically conductive layers.
- the control contacts (gates) of the power semiconductor components by means of a control contact resistance must be electrically decoupled from each other.
- electrical resistors in the form of independent components are used, which are connected to the control contacts of the power semiconductor components.
- the object of the present invention is to show how a compact circuit arrangement with at least two controllable semiconductor components connected in parallel can be realized.
- a circuit arrangement is provided on a substrate with a semiconductor component arranged on the substrate with a control contact, at least one further semiconductor component arranged on the substrate with a further control contact and at least one electrical control contact resistor arranged between the control contacts for the electrical decoupling of the control contacts to form the electrical control contact resistance at least one arranged on the substrate deposition of at least one electrically conductive material is present.
- a method for producing the circuit arrangement is also specified with the following method steps: a) providing the semiconductor component and the further semiconductor component on the substrate, wherein the control contact of the semiconductor component and the further control contact of the further semiconductor component are turned away from the substrate, and b) Generating the deposit on the substrate, wherein the control contact resistance is formed.
- the basic idea of the invention is to integrate the control contact resistance between the control contacts of parallel-connected semiconductor components of a semiconductor module directly in the semiconductor module. The integration takes place with the aid of the on the substrate indirectly and / or directly or. with the help of the deposition generated on the semiconductor devices.
- the deposition is generated directly on the control contacts of the semiconductor components of the circuit arrangement.
- the deposition is advantageously a component of a multilayer structure of the semiconductor module for electrically contacting the semiconductor components of the semiconductor module.
- Deposition is to be understood as meaning a solid material which is produced by separation from a gas phase and / or from a liquid phase.
- the gas phase or the liquid phase are formed by (reactive) mixtures. From these mixtures, the deposit is formed.
- the deposition is, for example, a vapor phase deposition.
- the vapor phase deposition is produced, for example, by a physical vapor deposition (PVD) process or by a chemical vapor deposition (CVD) process.
- the deposition may also be a liquid phase deposition.
- the liquid phase deposition is for example a galvanic deposition.
- the electrodeposition consists, for example, of elemental copper which is deposited from a solution containing copper ions by electrolysis.
- control contact resistors To provide control contact resistors. These separate components do not have to after the manufacture of the arrangement Subsequent to substrate and semiconductor devices are electrically connected to the control contacts of the semiconductor devices. The manufacture of the circuit simplifies. This applies in particular to the case in which the method for large-area planar electrical contacting is used for producing the circuit arrangement. Because in the context of large-area contacting the deposition of electrically conductive material is provided.
- the deposition on a plurality of superposed Operaabscheidungen is a multi-layer deposition.
- Partial deposition layers can fulfill a wide variety of functions.
- Adhesive layer on a substrate Adhesive layer on a substrate.
- the background is, for example, from the control contact of the
- the control contact surfaces of the control contacts have, for example, aluminum.
- a layer of titanium has been proven.
- a second partial deposition arranged on the first partial separation functions as a diffusion barrier for specific atoms.
- a layer of a titanium-tungsten alloy is suitable, which acts as an efficient diffusion barrier for copper atoms.
- a third partial deposition of copper arranged on the second partial deposition functions, for example, as a seed layer.
- a fourth partial deposition for example a layer of a metal (resistance metal) which is electrodeposited on the seed layer, leads to the setting of a specific value of the control contact resistance.
- the first partial layers have layer thicknesses in the range of 10 nm to a few microns.
- a layer thickness of the electrodeposited sub-layer is several microns, for example 50 microns to 100 microns.
- Any arbitrary, controllable semiconductor component is conceivable as a semiconductor component.
- at least one of the semiconductor components is a power semiconductor component.
- the power semiconductor component is preferably selected from the group consisting of MOSFET, IGBT and / or bipolar transistor.
- the following further method steps are carried out to provide the semiconductor components: c) arranging the semiconductor components on the substrate in such a way that the control contacts of the semiconductor components are turned away from the substrate, and d) applying an insulating layer with electrically insulating material to the substrate
- the application of the insulation layer takes place, for example, by arranging a prefabricated plastic film on the circuit arrangement.
- the prefabricated plastic film contains openings (windows), through which the control contacts are freely accessible.
- openings windows
- the following further method steps are therefore carried out for applying the insulation layer: e) applying a precursor of the insulation layer with electrically insulating material on the semiconductor devices and the substrate such that at least one of the control contacts of the semiconductor devices is covered by the precursor of the insulation layer, and f) opening at least one window in the precursor of the insulating layer such that the covered by the precursor of the insulating layer Control contact is released and thereby the insulation layer is formed.
- an electrically insulating lacquer is applied.
- the application of the paint is done for example by printing or spraying.
- the printing is, for example, an ink jet printing method (inkjet method).
- the application of the lacquer can take place in such a way that the control contacts of the semiconductor components remain free (for example with the aid of a mask).
- the application is structured. After removal of solvent, the actual insulation layer is formed. It is also gratifying that during the application of the paint, the control contacts of the semiconductor devices are covered. A preliminary stage of the insulation layer is formed. In the thus generated precursor of the insulation layer, the window is exposed to expose the control contact. The insulation layer is generated.
- a lamination of at least one plastic film is carried out for applying the insulating layer and / or for applying the precursor of the insulating layer.
- the plastic film forms the insulating layer or the precursor of the insulating layer.
- the lamination of the plastic film is carried out under vacuum. This results in a particularly firm and intimate contact between the plastic film and the semiconductor components or. the substrate.
- a degree of deposition is selectively influenced.
- a resistance value of the control contact resistance is set.
- Control contact resistance may be used during the deposition of a mask. Through the mask electrically conductive material is applied in a structured manner. In a particular embodiment, the resistance of the
- Control contact resistance but adjusted by removing the electrically conductive material of the deposition. After deposition, the deposit is patterned and the resistance of the control contact resistor is adjusted. By removing the electrically conductive material is the
- the deposition is structured meandering by the removal of the electrically conductive material.
- the deposition can also be applied meandering with the aid of a mask.
- Each of the resulting deposits has a meandering shape.
- the meandering shape produces a control contact resistance with a long conduction path between the control contacts as compared to the size of the semiconductor module. The longer the conduction path of the control contact resistance, the higher the resistance value of the control contact resistance.
- a laser ablation process is performed to open the window and / or to ablate the electrically conductive material of the deposit.
- Alternative material removal methods for example a
- the invention provides a compact structure of a semiconductor module with semiconductor components on a substrate.
- control contact resistance By integrating the control contact resistance in the multi-layer structure of a semiconductor module can be dispensed with a separate component for the realization of the control contact resistance.
- the resistance value of the control contact resistance can be easily set resp. to be adjusted.
- FIG. 1 shows a section of a circuit arrangement in a lateral cross section.
- FIG. 2 shows essential components of the circuit arrangement in plan view.
- FIG. 3 shows a method for producing the circuit arrangement.
- the exemplary embodiment relates to a power semiconductor module 11 (FIGS. 1 and 2).
- the power semiconductor module 11 has a circuit arrangement 1 on a DCB substrate 4.
- the circuit arrangement 1 has a power semiconductor component 2 with a control contact 21 and a further power semiconductor component 3 with a further control contact 31.
- Power semiconductor devices 2 and 3 are IGBTs which are connected in parallel with each other.
- the DCB substrate 4 has a carrier layer 41 made of a
- the ceramic is alumina. In another embodiment, the ceramic is aluminum nitride.
- electrical conductor layers 42 and 43 are applied from copper.
- the power semiconductor components 2 and 3 are soldered onto one of the conductor layers 42 or 43 such that the control contact surface 21 of the power semiconductor component 2 formed by the control contact and the further control contact surface 31 of the further power semiconductor component 3 formed by the further control contact 31 point away from the substrate 4.
- the power semiconductor component 2 via its drain contact surface 22 and the further power semiconductor component 3 via its further drain contact surface by means of a solder 24 and. 34 soldered onto the conductor layer 42.
- Control contact resistor 5 is arranged. To generate the control contact resistance, the procedure is as follows (see FIG. 3): First, an arrangement of the power semiconductor components 2 and 3 is provided on the substrate 4 (method step 301).
- a plastic film 6 is laminated under vacuum (step 302).
- the plastic film 6 is laminated on the substrate 4 and the power semiconductor component 2 and 3 in such a way that a surface contour 23 of the power semiconductor component 3, a further surface contour 33 of the other Power semiconductor device 3 and a surface contour 44 of the substrate 4 in the surface contour 61 of the plastic film 6 is shown, which is the substrate 4 and the power semiconductor devices 2 and 3 is turned away (see Figure 1).
- Power semiconductor device 3 exposed step 303.
- the opening of the windows 62 and 63 is carried out by laser ablation.
- a planar electrical contacting of the control contact surface 21 and the further control contact surface 31 takes place with one another.
- a deposition 51 is produced on the control contacts 21 and 31 and on the substrate 4 (method step 304).
- Electrically conductive material is deposited on the control contacts 21 and 31, on the plastic film 6 and the electrical conductor layer 42.
- the deposition 51 has a multilayer structure. It consists of several partial metal deposits, each of which assumes different functions. A first partial deposition of titanium acts as
- Bonding layer a second partial deposition of a titanium-tungsten alloy as a diffusion barrier and a third partial deposition of copper as a seed layer (seed layer).
- the deposition 51 is patterned. For this purpose, electrically conductive material of the deposition 51 is removed. The ablation is done by laser ablation. By removing the electrically conductive
- Material is a cross section of the deposit 51 is reduced.
- the deposition 51 additionally receives a meandering shape 52 due to the removal of the electrically conductive material.
- the source contact area 25 of the power semiconductor component 2 and the further source contact area 35 of the further power semiconductor component are contacted in a planar manner over a large area.
- the contacting succeeds according to the method described above for contacting the control contact surfaces 21 and 31 of the power semiconductor components 2 and 3.
- copper is deposited with a layer thickness of about 200 microns. As a result, a corresponding current carrying capacity of the resulting connection line is ensured.
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Computer Hardware Design (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Geometry (AREA)
- Electrodes Of Semiconductors (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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DE102004061908.5 | 2004-12-22 | ||
DE102004061908A DE102004061908B4 (de) | 2004-12-22 | 2004-12-22 | Verfahren zum Herstellen einer Schaltungsanordnung auf einem Substrat |
Publications (1)
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WO2006067018A1 true WO2006067018A1 (de) | 2006-06-29 |
Family
ID=35735018
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/EP2005/056192 WO2006067018A1 (de) | 2004-12-22 | 2005-11-24 | Schaltungsanordnung auf einem substrat und verfahren zum herstellen der schaltungsanordnung |
Country Status (2)
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DE (1) | DE102004061908B4 (de) |
WO (1) | WO2006067018A1 (de) |
Families Citing this family (2)
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EP1882953A1 (de) * | 2006-07-26 | 2008-01-30 | Siemens Aktiengesellschaft | Stromerfassungsvorrichtung |
US12034033B2 (en) | 2022-01-25 | 2024-07-09 | Ge Aviation Systems Llc | Semiconductor device package and method of forming |
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US3780352A (en) * | 1968-06-25 | 1973-12-18 | J Redwanz | Semiconductor interconnecting system using conductive patterns bonded to thin flexible insulating films |
DE3406420A1 (de) * | 1983-02-28 | 1984-08-30 | Sgs-Ates Componenti Elettronici S.P.A., Agrate Brianza, Mailand/Milano | Halbleiter-leistungsvorrichtung mit mehreren parallel geschalteten, gleichen elementen |
US5589702A (en) * | 1994-01-12 | 1996-12-31 | Micrel Incorporated | High value gate leakage resistor |
EP0780899A2 (de) * | 1995-12-21 | 1997-06-25 | Mitsubishi Denki Kabushiki Kaisha | Halbleiterschaltung |
US5994739A (en) * | 1990-07-02 | 1999-11-30 | Kabushiki Kaisha Toshiba | Integrated circuit device |
US6268628B1 (en) * | 1998-04-03 | 2001-07-31 | Fuji Electric Co., Ltd. | Depletion type MOS semiconductor device and MOS power IC |
WO2003030247A2 (de) * | 2001-09-28 | 2003-04-10 | Siemens Aktiengesellschaft | Verfahren zum kontaktieren elektrischer kontaktflächen eines substrats und vorrichtung aus einem substrat mit elektrischen kontaktflächen |
US20040056349A1 (en) * | 1994-10-07 | 2004-03-25 | Kazuji Yamada | Circuit board |
DE10250538A1 (de) * | 2002-10-29 | 2004-05-19 | Infineon Technologies Ag | Elektronisches Bauteil als Multichipmodul und Verfahren zu dessen Herstellung |
WO2004077548A2 (de) * | 2003-02-28 | 2004-09-10 | Siemens Aktiengesellschaft | Verbindungstechnik für leistungshalbleiter |
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JPS60113969A (ja) * | 1983-11-25 | 1985-06-20 | Hitachi Ltd | 半導体装置 |
US5637922A (en) * | 1994-02-07 | 1997-06-10 | General Electric Company | Wireless radio frequency power semiconductor devices using high density interconnect |
US6365498B1 (en) * | 1999-10-15 | 2002-04-02 | Industrial Technology Research Institute | Integrated process for I/O redistribution and passive components fabrication and devices formed |
DE10335153B4 (de) * | 2003-07-31 | 2006-07-27 | Siemens Ag | Schaltungsanordnung auf einem Substrat, die einen Bestandteil eines Sensors aufweist, und Verfahren zum Herstellen der Schaltungsanordnung auf dem Substrat |
-
2004
- 2004-12-22 DE DE102004061908A patent/DE102004061908B4/de not_active Expired - Fee Related
-
2005
- 2005-11-24 WO PCT/EP2005/056192 patent/WO2006067018A1/de active Application Filing
Patent Citations (10)
Publication number | Priority date | Publication date | Assignee | Title |
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US3780352A (en) * | 1968-06-25 | 1973-12-18 | J Redwanz | Semiconductor interconnecting system using conductive patterns bonded to thin flexible insulating films |
DE3406420A1 (de) * | 1983-02-28 | 1984-08-30 | Sgs-Ates Componenti Elettronici S.P.A., Agrate Brianza, Mailand/Milano | Halbleiter-leistungsvorrichtung mit mehreren parallel geschalteten, gleichen elementen |
US5994739A (en) * | 1990-07-02 | 1999-11-30 | Kabushiki Kaisha Toshiba | Integrated circuit device |
US5589702A (en) * | 1994-01-12 | 1996-12-31 | Micrel Incorporated | High value gate leakage resistor |
US20040056349A1 (en) * | 1994-10-07 | 2004-03-25 | Kazuji Yamada | Circuit board |
EP0780899A2 (de) * | 1995-12-21 | 1997-06-25 | Mitsubishi Denki Kabushiki Kaisha | Halbleiterschaltung |
US6268628B1 (en) * | 1998-04-03 | 2001-07-31 | Fuji Electric Co., Ltd. | Depletion type MOS semiconductor device and MOS power IC |
WO2003030247A2 (de) * | 2001-09-28 | 2003-04-10 | Siemens Aktiengesellschaft | Verfahren zum kontaktieren elektrischer kontaktflächen eines substrats und vorrichtung aus einem substrat mit elektrischen kontaktflächen |
DE10250538A1 (de) * | 2002-10-29 | 2004-05-19 | Infineon Technologies Ag | Elektronisches Bauteil als Multichipmodul und Verfahren zu dessen Herstellung |
WO2004077548A2 (de) * | 2003-02-28 | 2004-09-10 | Siemens Aktiengesellschaft | Verbindungstechnik für leistungshalbleiter |
Also Published As
Publication number | Publication date |
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DE102004061908B4 (de) | 2009-07-30 |
DE102004061908A1 (de) | 2006-07-06 |
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