WO2015036221A1 - Leuchtmodul mit halbleiterlichtquellen und trägerplatte - Google Patents
Leuchtmodul mit halbleiterlichtquellen und trägerplatte Download PDFInfo
- Publication number
- WO2015036221A1 WO2015036221A1 PCT/EP2014/067914 EP2014067914W WO2015036221A1 WO 2015036221 A1 WO2015036221 A1 WO 2015036221A1 EP 2014067914 W EP2014067914 W EP 2014067914W WO 2015036221 A1 WO2015036221 A1 WO 2015036221A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carrier
- carrier substrate
- lighting module
- light sources
- semiconductor light
- Prior art date
Links
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
- H01L25/075—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 H01L33/00
- H01L25/0753—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 H01L33/00 the devices being arranged next to each other
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/483—Containers
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/64—Heat extraction or cooling elements
- H01L33/644—Heat extraction or cooling elements in intimate contact or integrated with parts of the device other than the semiconductor body
-
- 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
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
-
- 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
- H01L2224/481—Disposition
- H01L2224/48135—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
- H01L2224/48137—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being arranged next to each other, e.g. on a common substrate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls
Definitions
- Luminous module with semiconductor light sources and carrier plate The invention relates to a lighting module with several
- Semiconductor light sources in particular LED chips, wherein the lighting module has a support plate.
- the invention also relates to a method for operating such a lighting module.
- the invention is particularly applicable to LED lighting modules in CoB ("chip-on-board") technology.
- Fig.l shows a conventional light module 101 in CoB technology with a support plate 102 made of aluminum, at the reflective front side 103 a plurality of semiconductor light sources in the form of LED chips 104 are applied.
- the use of such a carrier plate 102 has two advantages, namely a high reflectivity with high
- the LED chips 104 are by means of a dielectric
- a first LED chip 104, 104h of the series is connected via a bonding wire 105 to a first terminal contact 106h, which is at a highest electrical
- a last LED chip 1041 of the series is connected to a second terminal contact 1061, which is at a lowest electrical potential LV.
- individual LED chips 104 should be connected in a row such that the sum of their forward voltages corresponds to the HV-LV voltage applied in total to this LED row 104h, 1041.
- the front side 103 of the carrier plate 102 with the LED chips 104 and the bonding wires 105 is encapsulated by means of a transparent potting compound 107, for example silicone or epoxy resin, which may have, for example, filler such as diffuser particles and / or phosphor particles.
- a transparent potting compound 107 for example silicone or epoxy resin, which may have, for example, filler such as diffuser particles and / or phosphor particles. Since the carrier plate 102 is electrically conductive, it is unsuitable for use of the light module 101 in a high voltage HV-LV applied to the row 104h... 1041 of the LED chips 104 or at a high voltage HV-LV applied to the connection contacts 106h, 1061.
- the high voltage may eg a peak voltage of a
- an electrical sub-path P to the LED series circuit is closed.
- the carrier plate 102 is connected with its rear side 108 via an electrically insulating intermediate layer 109 to a metallic heat sink 110, as shown in FIG.
- the heat sink 110 is typically electrically connected to ground GND. In this case also occurs a capacitive coupling between the
- At least two capacitances are present per bonding wire 105 between this bonding wire 105 and the heat sink 110, namely a first capacitance Cws between the bonding wire 105 and the carrier plate 102, which the potting compound 107 as a dielectric, and a second capacitor Csh between the carrier plate 102 and the heat sink 110, which the
- Intermediate layer 109 has as a dielectric.
- Capacitance Cws is typically significantly smaller than the second capacitance Csh. As a result, the electric potential applied to the bonding wire 105 drops at the first capacitance Cws significantly. This leads in addition to a strong
- a known measure to circumvent these problems is to use carrier plates of thermally conductive but electrically insulating ceramic material, e.g. from A1N. This solution is very expensive.
- a lighting module with a plurality of semiconductor light sources comprising a metallic
- carrier substrates are arranged, on which carrier substrates in each case at least one
- Semiconductor light source is arranged.
- Carrier namely the carrier plate
- the electric field F between the bonding wires and the support plate can be reduced. This in turn reduces a risk of partial discharge within the lighting module and / or formation of an electrical secondary path.
- the light module is also simple and inexpensive to implement.
- Semiconductor light source at least one light emitting diode.
- the light emitted by the at least one light-emitting diode can also be an infrared light (IR LED) or an ultraviolet light (UV LED).
- IR LED infrared light
- UV LED ultraviolet light
- Several light emitting diodes can produce a mixed light; e.g. a white mixed light.
- the at least one light-emitting diode can have at least one
- the wavelength-converting phosphor included conversion LED
- the phosphor may alternatively or additionally be arranged remotely from the light-emitting diode ("remote phosphor").
- the at least one light-emitting diode can be in the form of at least one individually housed light-emitting diode or in the form of at least one LED chip. Several LED chips can be mounted on a common substrate (“submount").
- At least one light emitting diode may be equipped with at least one own and / or common optics for beam guidance, e.g. at least one Fresnel lens, collimator, and so on.
- at least one own and / or common optics for beam guidance e.g. at least one Fresnel lens, collimator, and so on.
- OLEDs organic LEDs
- a wavelength-converting phosphor may also be connected downstream of the at least one diode laser, for example in a LARP (Laser Activated Remote Phosphor) arrangement.
- LARP Laser Activated Remote Phosphor
- the metallic carrier plate may in particular comprise or consist of aluminum and / or copper.
- Carrier plate in particular like a circular disk or
- the thickness of the carrier plate is in particular considerably smaller than an extent in a plane of the carrier plate.
- the support plate may be flat or
- the thickness may be constant but is not limited thereto.
- the metallic carrier substrates may also be e.g.
- a carrier substrate may be shaped in particular circular disk-shaped or cuboid.
- the thickness of a carrier substrate is in particular considerably less than an extent in a plane of the carrier substrate. The thickness may be constant but is not limited thereto.
- the carrier substrates are
- the metallic carrier substrates preferably have a reflective surface in order to minimize light losses.
- a voltage or potential difference HV-LV applied to the semiconductor light sources may be a high voltage.
- Under a high voltage may be understood in particular a voltage which for an AC voltage
- DC voltage has a value of at least 120 V.
- a high voltage may in particular be understood to mean a DC voltage of 230 V or more, in particular of 400 V.
- the semiconductor light sources can all be connected in a single row, or the semiconductor light sources can be electrically distributed over a plurality of independent operable rows or "strands." The division into several strands may be particularly in the case of differently colored ones
- Semiconductor light sources make sense, with a strand
- semiconductor light sources of the same color preferably in a row comprises switched semiconductor light sources of the same color.
- semiconductor light sources of several strands may therefore be used on a carrier substrate
- Vc create electrical potential Vc, in particular a
- the free potential Vc reduces a potential difference between the bonding wires and the supporting substrate. This results in a significantly lower electric field between the bonding wire and the carrier substrate, which in turn reduces a risk of partial discharge within the lighting module.
- This embodiment can be implemented simply and inexpensively. It works independently of the values of Cws and Csh. It is a particularly easy to implement and effective
- Carrier substrate corresponds to the average value of the voltage applied to the row of at least one semiconductor light source of this carrier substrate electrical potentials.
- the electrical potential Vc of the carrier substrate thus corresponds to the mean value of the voltage applied to the first LED chip of the carrier substrate
- Carrier substrate reaches, namely of absolute maximum (HV LV) / 2 on the bonding wire, which of the first
- connection contact of the carrier substrate leads. It is a particularly simple implementation of applying the electrical potential Vc to a carrier substrate preferred embodiment that the light emitting module, a voltage divider for providing the electrical potential Vc for the
- the lighting module is particularly easy to implement, if an equal number of semiconductor light sources is arranged on the carrier substrates.
- the carrier plate is attached to a heat sink. This improves cooling of the semiconductor light sources.
- the object is also achieved by a method for operating a lighting module as described above, wherein an electrical potential is applied to at least one carrier substrate. The method can be analogous to the lighting device
- Voltage divider. 4 shows a luminous module 1 according to the invention in CoB technology with a carrier plate 2 made of aluminum, on the front side 3 of which a plurality of carrier substrates 5 or 5-1, 5-2 and 5-3 of aluminum are laterally spaced over a dielectric layer 4 ,
- Support substrates 5 are with their back 6 at the
- Dielectric layer 4 and carry on its front side 7 each have a plurality of LED chips 8, of which only the first LED chips 8h and last LED chips 81 are shown here.
- n 3
- the support substrates 5 may in particular have a reflective surface, e.g. in the manner of MIRO or MIRO SILVER of the company Alanod.
- the first LED chip 8h of the first carrier substrate 5-1 is connected via a bonding wire 105 to a first connection contact (o.
- Bonding wire 105 a highest electrical potential HV of
- Luminous module 1 is applied, which also corresponds to the highest potential HV1 of the first carrier substrate 5-1.
- the highest electrical potential HV or HV1 may be 400 V here for a calculation example.
- each of the n drops across the row of the LED chips 8
- the last LRD chip 81 of the third carrier substrate 5-3 is connected via a
- Light module 1 corresponds. All in all, therefore, there is an (operating) voltage HV-LV of 391.5 V at the row of all LED chips 8.
- the front side 9 of the support plate 2 is also here with
- the light module 1 may in turn be connected with its rear side 10 via a dielectric intermediate layer with a heat sink (o. Fig.).
- FIG. 5 shows the lighting module 1 of Figure 4 now in a variant with a connected voltage divider 11, which is fed by a high-voltage LED driver 12.
- the voltage divider 11 is electrically between them
- the total resistance of the voltage divider 11 is thus 3000 kilohms or 3
- HV1 and HV2 electrical potentials HV1 and HV2. It differs in magnitude only by 65.25 V from HV1 and LV1 and represents the largest potential difference between a bond wire 105 connected to an LED chip 8 of the carrier substrate 5-1 and the carrier substrate 5-1. Consequently, between the bonding wire 105 and the first carrier substrate 5-1 constructed a significantly lower electric field than at otherwise 400 V. Thus, a formation of Crowstrompfaden and / or partial discharges is greatly suppressed, and it can now be to simple and
- an electrical line 14 branched between the second resistor R2 and the third resistor R3 leads to the second carrier substrate 5-2, so that at the second
- Carrier substrate 5-2 a free electrical potential
- two or more than three carrier substrates 5 can be used.
- Support substrate 5 the lower may be the maximum potential difference between a carrier substrate 5 and an associated bonding wire 105.
- the carrier substrates can also be designed differently, e.g. different dimensions, e.g. a different diameter.
- the carrier substrates can also carry a different number of LED chips, in which case the value of the associated resistors can be adapted to them when a voltage divider is present.
- "on”, “an”, etc. can be understood to mean a singular or a plurality, in particular in the sense of
- a number may include exactly the specified number as well as a usual tolerance range, as long as this is not explicitly excluded.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201480050818.2A CN105556665A (zh) | 2013-09-16 | 2014-08-22 | 具有半导体光源和承载板的发光模块 |
KR1020167009192A KR20160056910A (ko) | 2013-09-16 | 2014-08-22 | 반도체 광원들 및 캐리어 플레이트를 포함하는 조명 모듈 |
US15/021,952 US9659915B2 (en) | 2013-09-16 | 2014-08-22 | Lighting module with semiconductor light sources and carrier plate |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102013218541.3A DE102013218541A1 (de) | 2013-09-16 | 2013-09-16 | Leuchtmodul mit Halbleiterlichtquellen und Trägerplatte |
DE102013218541.3 | 2013-09-16 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2015036221A1 true WO2015036221A1 (de) | 2015-03-19 |
Family
ID=51399650
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2014/067914 WO2015036221A1 (de) | 2013-09-16 | 2014-08-22 | Leuchtmodul mit halbleiterlichtquellen und trägerplatte |
Country Status (5)
Country | Link |
---|---|
US (1) | US9659915B2 (de) |
KR (1) | KR20160056910A (de) |
CN (1) | CN105556665A (de) |
DE (1) | DE102013218541A1 (de) |
WO (1) | WO2015036221A1 (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102017115798A1 (de) * | 2017-07-13 | 2019-01-17 | Alanod Gmbh & Co. Kg | Reflektierendes Verbundmaterial, insbesondere für oberflächenmontierte Bauelemente (SMD), und lichtemittierende Vorrichtung mit einem derartigen Verbundmaterial |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4434274A1 (de) * | 1994-09-24 | 1996-03-28 | Blaupunkt Werke Gmbh | Beleuchtungsanordnung mit in Reihe geschalteten Leuchtdioden |
WO2006089512A1 (de) * | 2005-02-28 | 2006-08-31 | Osram Opto Semiconductors Gmbh | Modul mit strahlungsemittierenden halbleiterkörpern |
EP2315284A2 (de) * | 2009-10-21 | 2011-04-27 | Toshiba Lighting & Technology Corporation | Lichtemittierende Vorrichtung und Leuchte |
EP2346307A2 (de) * | 2010-01-18 | 2011-07-20 | Toshiba Lighting & Technology Corporation | Beleuchtungsvorrichtung |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10245946C1 (de) * | 2002-09-30 | 2003-10-23 | Osram Opto Semiconductors Gmbh | Verfahren zur Herstellung eines Lichtquellenmoduls |
JP5655302B2 (ja) * | 2009-12-24 | 2015-01-21 | 東芝ライテック株式会社 | 照明装置 |
-
2013
- 2013-09-16 DE DE102013218541.3A patent/DE102013218541A1/de not_active Withdrawn
-
2014
- 2014-08-22 CN CN201480050818.2A patent/CN105556665A/zh active Pending
- 2014-08-22 WO PCT/EP2014/067914 patent/WO2015036221A1/de active Application Filing
- 2014-08-22 KR KR1020167009192A patent/KR20160056910A/ko not_active Application Discontinuation
- 2014-08-22 US US15/021,952 patent/US9659915B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4434274A1 (de) * | 1994-09-24 | 1996-03-28 | Blaupunkt Werke Gmbh | Beleuchtungsanordnung mit in Reihe geschalteten Leuchtdioden |
WO2006089512A1 (de) * | 2005-02-28 | 2006-08-31 | Osram Opto Semiconductors Gmbh | Modul mit strahlungsemittierenden halbleiterkörpern |
EP2315284A2 (de) * | 2009-10-21 | 2011-04-27 | Toshiba Lighting & Technology Corporation | Lichtemittierende Vorrichtung und Leuchte |
EP2346307A2 (de) * | 2010-01-18 | 2011-07-20 | Toshiba Lighting & Technology Corporation | Beleuchtungsvorrichtung |
Also Published As
Publication number | Publication date |
---|---|
US20160225747A1 (en) | 2016-08-04 |
DE102013218541A1 (de) | 2015-03-19 |
KR20160056910A (ko) | 2016-05-20 |
CN105556665A (zh) | 2016-05-04 |
US9659915B2 (en) | 2017-05-23 |
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