WO2014166763A1 - Modul mit wenigstens zwei halbleiterchips - Google Patents
Modul mit wenigstens zwei halbleiterchips Download PDFInfo
- Publication number
- WO2014166763A1 WO2014166763A1 PCT/EP2014/056320 EP2014056320W WO2014166763A1 WO 2014166763 A1 WO2014166763 A1 WO 2014166763A1 EP 2014056320 W EP2014056320 W EP 2014056320W WO 2014166763 A1 WO2014166763 A1 WO 2014166763A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carrier
- module according
- semiconductor chips
- module
- conversion element
- 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W90/00—Package configurations
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/851—Wavelength conversion means
- H10H20/8514—Wavelength conversion means characterised by their shape, e.g. plate or foil
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10H—INORGANIC LIGHT-EMITTING SEMICONDUCTOR DEVICES HAVING POTENTIAL BARRIERS
- H10H20/00—Individual inorganic light-emitting semiconductor devices having potential barriers, e.g. light-emitting diodes [LED]
- H10H20/80—Constructional details
- H10H20/85—Packages
- H10H20/857—Interconnections, e.g. lead-frames, bond wires or solder balls
Definitions
- Module with at least two semiconductor chips The invention relates to a module with at least two
- the object of the invention is to provide an improved module with at least two semiconductor chips for generating light.
- the carrier is constructed from at least two carrier elements, wherein the two carrier elements are flexibly connected to each other. In this way, mechanical stresses that are generated, for example, when mounting the semiconductor chips on the carrier, balanced. Thus, you can
- the use of an elastic material for connecting the two carrier elements allows a secure connection of the two carrier elements.
- via the elastic material and the conductor can be performed.
- the elastic material of the compound may have a significantly lower Young's modulus of elasticity as the material of the at least two carrier elements.
- the Young's modulus of the elastic material of the compound may be at most 10%, preferably at most 5%, of the Young's modulus of the material of the at least two support members.
- the elastic material may have a Young's modulus of at most 10 kN / mm 2 , preferably of at most 5 kN / mm 2 , while the material of the at least two carrier elements along at least one main crystal direction has a Young's modulus of at least 100 kN / mm 2 , preferably of at least 150 kN / mm 2 .
- connection and the at least two carrier elements to consist of different ones
- a plastic such as e.g. a polyimide, a polyamide or a polymer or a liquid crystal polymer may be used.
- the carrier elements can be made, for example, of silicon, aluminum nitride,
- Alumina and / or silicon nitride may be formed.
- the elastic materials described can be easily and inexpensively processed by using several
- Carrier elements to provide a large-area carrier to provide a large-area carrier.
- a one-piece rigid conversion element is provided on the semiconductor chips.
- the conversion element serves to shift a wavelength of the light radiation of the semiconductor chips. Due to the one-piece design of the conversion element an additional stiffening of the arrangement is achieved. Thus, that takes over
- Carrier function For example, as a conversion element, a rigid plate, in particular a ceramic plate can be used. It is possible that the material of the
- Conversion element is stiffer than the elastic material of the compound.
- the material of the Conversion element is stiffer than the elastic material of the compound.
- the Young's modulus of the material of the conversion element can thus be equal to or greater than the Young's modulus of the material of the at least two support elements.
- the Young's modulus of the conversion element may be at least 200 kN / mm 2 .
- the rigid plate provides sufficient mechanical
- the mechanical handling of the module can be improved by the conversion element and thereby in
- the conversion element for example, a higher external force acting on the module, without this being destroyed.
- the module is mechanically self-supporting by the conversion element, that is, that the module can be handled as part of a manufacturing process with tools such as tweezers, without the need for another supporting element must be present.
- ceramic plates in the field of semiconductor chips are known as conversion elements.
- Conversion element can be used.
- the carrier has two
- Top side but also be electrically contacted from the back. This provides increased flexibility in the use of the module.
- the upper side of the mechanical connection is arranged at the same height as the upper side of the carrier elements. As a result, a continuous flat surface is formed.
- the interconnect can be used without problems in a single process both on the
- the conductor track is, for example, both on the support elements as well as on the mechanical
- the conductor can be deposited by means of a CVD method.
- the plastic comprises light-reflecting particles, e.g. Titanium dioxide on.
- the radiation of light upwards in the direction of emission of the semiconductor chip can be supported.
- the semiconductor chips are designed essentially in the form of semiconductor layers, in particular epilayers. This will give a precise height of the semiconductor layers, in particular epilayers.
- Semiconductor chips are formed, for example, identical.
- the carrier is on a further carrier, in particular on a carrier plate
- the carrier plate can, for example, as
- the carrier is fastened on the further carrier by means of a solder connection.
- solder connection allows a safe
- the semiconductor chips in particular also formed thin
- semiconductor chips are soldered individually to the carrier.
- the semiconductor chips have, for example, a thickness of 200 ⁇ m. Due to the small size of the individual support elements, the
- a protective diode is integrated in a carrier element.
- FIG. 2 is a schematic partial section of the carrier with two carrier elements and a conductor track
- Fig. 6 is an enlarged view of a cross section through the module
- Fig. 7 shows a module with arad.uxisme
- Fig. 8 shows a schematic cross section through a conductor track of this module.
- 1 shows a schematic representation of a module 1, which has a carrier 3.
- the carrier 3 is constructed from a plurality of carrier elements 2.
- the carrier elements 2 are arranged next to one another and adjacent carrier elements 2 are connected to each other via a mechanical connection 5.
- On some of the support elements 2 is a
- Carrier elements 2 may be formed, for example, of an electrically insulating material such as undoped silicon or a ceramic material. Furthermore, it is possible to form the carrier elements 2 from an electrically conductive or an electrically semiconducting material, but in this case suitable electrical insulating coatings are provided.
- the conductor 7 is of a support element 2 for
- the conductor track 7 may be formed, for example, of metal and be applied to the carrier elements 2 and the mechanical connection 5 by means of a deposition method, for example a CVD method. In this case, suitable methods for structuring the conductor track such. Etching process can be used with photoresist layers.
- Semiconductor chip 4 arranged on a support element 2.
- the dimensioning of the carrier element 2 is selected in such a way that a semiconductor chip 4 occupies the largest area of the surface of the carrier element 2. This will be the
- the support elements 2, which limit the carrier 3, without semiconductor chip 4 is formed.
- Conductor surfaces serve as contact surfaces 9, 10 for
- Each semiconductor chip 4 has an active zone for generating light radiation.
- the active zone has correspondingly formed semiconductor layers which are formed, for example, in the form of a pn junction and in the form of quantum wells or quantum well structures.
- As the material for the active region for example, aluminum gallium arsenide, gallium arsenide phosphide, gallium phosphide, silicon carbide, zinc selenide, indium gallium nitride or gallium nitride can be used.
- Embodiment arranged only a one-piece conversion element 8.
- a plurality of conversion elements 8 are provided, wherein a
- Conversion element 8 covers at least two adjacent semiconductor chips 4.
- the conversion element 8 serves to shift the wavelength of the light emitted from the semiconductor chips 4 upwards.
- Conversion element 8 is in the form of a rigid plate, for example in the form of a ceramic.
- the ceramic may, for example, comprise yttrium aluminum oxide (YAG) doped with Ce.
- YAG yttrium aluminum oxide
- the ceramics can be others too
- the conversion element may have a thickness between 50 ym and 200 ym.
- Phosphors can z. As grenades, aluminates, silicates,
- the conversion element can also be designed in the form of a transparent plate which is connected to a corresponding one
- the rigid plate can also be made of a carrier material
- the conversion element 8 is glued to the semiconductor chip, for example, by means of an adhesive.
- silicone may be used as the adhesive.
- the translucent plate may be formed of glass, preferably toughened glass or silicon dioxide.
- the converter material can be made of an opto-ceramic, a glass ceramic, a
- the conversion element is essentially non-plastic when used in conventional temperatures
- the conversion element can be single-layered or
- the individual layers may have different conversion properties, in particular with regard to the conversion.
- Connection layer 11 is provided.
- the connecting layer 11 serves to connect the carrier 3 to a further carrier, which is not shown in FIG.
- the connecting layer 11 serves to connect the carrier 3 to a further carrier, which is not shown in FIG.
- Connecting layer 11 may be formed, for example, in the form of a metallic solder. In addition to the mechanical connection, the connection layer 11 also assumes a thermal coupling. Depending on the design, it is also possible to use a soft conversion element or to dispense with the conversion element.
- Conversion element 8 may also be formed of a soft, elastic potting compound.
- Fig. 2 shows in a schematic partial section parts of two juxtaposed support elements 2, which are interconnected via a connection 5.
- the compound 5 may be formed, for example, of plastic.
- plastics for example, polyimide, polyamide,
- light-reflecting particles 6 can be embedded in the plastic. This will make a reflection of the light upwards
- connection 5 in the Formed such that the surface of the compound 5 is arranged at the same height as the surface of the
- Carrier elements 2 This is a smooth transition for the
- FIG. 3 shows in a schematic plan view the carrier 3 with five carrier elements 2, 2 ⁇ , 2 ⁇ ⁇ .
- the carrier elements 2, 2 2 ⁇ ⁇ are each connected elastically to each other via a mechanical connection 5.
- Carrier element 2 ⁇ ⁇ is a contact surface 9, 10 of the conductor 7 is provided.
- the contact surface 9, 10 may in particular be part of the conductor 7.
- the contact surfaces 9, 10 are each formed as a narrow strip, which is arranged adjacent to the mechanical connection 5 almost over the entire width of the carrier element 2 ⁇ ⁇ .
- the first contact surface 9 is connected via a connecting piece 15 to the adjacent
- the connecting piece 15 is in communication with a second connecting piece 16.
- the second connecting piece 16 is guided perpendicular to the longitudinal extension of the carrier 2 in a central region of the carrier element 2.
- the second connecting piece 16 is guided perpendicular to the longitudinal extension of the carrier 2 in a central region of the carrier element 2.
- the first contact surface 9, the connecting piece 15, the second connecting piece 16 and the contact region 24 can
- the second connector 16 is of a
- Chip contact surface 17 surrounded.
- the chip pad 17 is electrically isolated from the second connector 16.
- the chip contact surface 17 in turn is over another
- the further second connecting piece 19 is surrounded by a further chip contact surface 17.
- the chip contact surface 17 has almost the same area as the carrier element 2, 2 ⁇ . Thus, with the chip contact surface 17 a
- the chip contact surface 17 can cover substantially the entire base area of a semiconductor chip.
- Chip contact surfaces 17 may in particular be integrally formed with one of the further connecting pieces 16, 19.
- the chip contact surfaces 17 and the further connecting pieces 16, 19 can also be part of the conductor track 7 or together form it.
- the conductor track 7 can cover substantially the entire base area of a semiconductor chip 4.
- the chip contact surface 17 may cover at least 90% of the base area of a semiconductor chip 4.
- Base surface of a semiconductor chip 4 may be given by the two-dimensional extent of the semiconductor chip 4 along the surface of the support member 2, 2 ⁇ .
- the formation of the second connecting piece 16, 19 serves to provide a second electrical connection of the
- the second connecting piece 16, 19 may be provided with an insulating layer up to an end region.
- the penultimate on the right side support member 2 ⁇ has a further connector 18, to the
- the further connector 18 may be part of
- the first and the last carrier element 2 ⁇ ⁇ have a
- Mounting surface 14, via which the module 1 can be mechanically fixed can be mechanically fixed.
- fixation can be done using a
- Protective diode 26 may be integrated into the carrier element 2.
- the carrier element 2, 2 ⁇ , 2 ⁇ ⁇ made of silicon and the protective diode by a corresponding
- FIG. 4 shows a process section in which a respective semiconductor chip 4 has been applied to the carrier 3 of FIG. 3 on the corresponding carrier elements 2.
- the semiconductor chips 4 were, for example, via a solder joint or a
- the filling layer 27 consists e.g. made of an electrically insulating material, e.g. Plastic.
- the filling layer increases mechanical stability and reduces the presence of voids.
- On the filling layer 27 can also be dispensed with.
- the semiconductor chips 4 are formed in the illustrated embodiment as a thin semiconductor chips.
- the semiconductor chips 4 are mechanically and / or electrically connected via a connecting layer 11 to the carrier elements 2.
- the connecting layer 11 may be soldered or
- Adhesive joint be formed.
- the carrier 3 has a second connection layer 20 on a lower side.
- a conversion element 8 is placed on the free upper side of the semiconductor chips 4 and connected to the free upper sides of the semiconductor chips 4.
- the connection can be made using a translucent
- Glue in particular silicone be executed.
- Conversion element 8 is, as already described, formed in the form of a rigid plate. This process status is shown in FIG. 5.
- FIG. 6 shows an enlarged view of the module 1, which is connected to a further carrier 12 via a second connecting layer 20.
- the second connection layer 20 is, for example, using an adhesive layer or a
- the further carrier 12 is formed of a thermally conductive material, for example of metal.
- the further carrier 12 may be formed in the form of a metal plate. Due to the formation of the carrier 3 in the form of several elastically with each other
- support elements 2 thermal stresses are reduced, which are generated by the assembly, for example, when soldering the support elements 2 on the other support 12.
- the support elements 2 are made, for example
- Silicon aluminum nitride, aluminum oxide, silicon nitride formed. It can also be other electrically insulating
- the further carrier 12 can
- Fig. 7 shows a further embodiment in which the
- Conductor 7 is guided on the first and the last carrier element 2 via a via 21 on the back of the carrier 3.
- the further carrier 12 is surrounded by a frame 22.
- On the frame 22 is another
- Conductor 23 is formed with the respective
- connection 21 is electrically connected. In this way, an electrical contacting of the module 1 from the bottom is possible.
- the carrier element 2 is formed, for example, from silicon nitride.
- Chip contact surface 17 is formed in the lower region, for example, titanium / platinum / gold.
- the contact surface 17 and the further connecting piece 18 have a gold / tin layer in an upper region.
- the further connector 18 is laterally over an insulating layer 25 of the
- Chip contact surface 17 electrically isolated.
- Insulation layer 25 is formed, for example, as silicon nitride.
- the semiconductor chips 4 may have different contact terminals. Accordingly, the conductor tracks 7 may also be formed differently on the carrier 3.
- the semiconductor chip 4 with two pixels
- Semiconductor chip 4 is provided to electrically contact the p and n terminals of the active pn-zone.
- Such a semiconductor chip 4 has, for example, a plurality of n connections and a p connection.
- Wiring level are several n-connections of the
Landscapes
- Led Device Packages (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112014001934.8T DE112014001934A5 (de) | 2013-04-10 | 2014-03-28 | Modul mit wenigstens zwei Halbleiterchips |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013103600.7A DE102013103600A1 (de) | 2013-04-10 | 2013-04-10 | Modul mit wenigstens zwei Halbleiterchips |
| DE102013103600.7 | 2013-04-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014166763A1 true WO2014166763A1 (de) | 2014-10-16 |
Family
ID=50439353
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2014/056320 Ceased WO2014166763A1 (de) | 2013-04-10 | 2014-03-28 | Modul mit wenigstens zwei halbleiterchips |
Country Status (2)
| Country | Link |
|---|---|
| DE (2) | DE102013103600A1 (de) |
| WO (1) | WO2014166763A1 (de) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1727212A1 (de) * | 2004-03-19 | 2006-11-29 | Matsushita Electric Industrial Co., Ltd. | Halbleiter-lichtemissionsbauelement und beleuchtungseinrichtung |
| US20100051984A1 (en) * | 2008-09-02 | 2010-03-04 | Scott West | Phosphor-Converted LED |
| EP2325883A2 (de) * | 2009-11-20 | 2011-05-25 | Koito Manufacturing Co., Ltd. | Lichtemittierendes Modul und Fahrzeuglampe |
| DE102011013052A1 (de) * | 2011-03-04 | 2012-09-06 | Osram Opto Semiconductors Gmbh | Verfahren zur Herstellung zumindest eines optoelektronischen Halbleiterbauelements |
| US20130015472A1 (en) * | 2011-07-15 | 2013-01-17 | Advanced Optoelectronic Technology, Inc. | Method for packaging light emitting diodes and light emitting module having led packages formed by the method |
| WO2013021519A1 (en) * | 2011-08-08 | 2013-02-14 | Kabushiki Kaisha Toshiba | Semiconductor light emitting device and light emitting module |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6936855B1 (en) * | 2002-01-16 | 2005-08-30 | Shane Harrah | Bendable high flux LED array |
| JP5158472B2 (ja) * | 2007-05-24 | 2013-03-06 | スタンレー電気株式会社 | 半導体発光装置 |
| US9337404B2 (en) * | 2011-03-22 | 2016-05-10 | Koninklijke Philips N.V. | Substrate for mounting a plurality of light emitting elements |
-
2013
- 2013-04-10 DE DE102013103600.7A patent/DE102013103600A1/de not_active Withdrawn
-
2014
- 2014-03-28 DE DE112014001934.8T patent/DE112014001934A5/de not_active Withdrawn
- 2014-03-28 WO PCT/EP2014/056320 patent/WO2014166763A1/de not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1727212A1 (de) * | 2004-03-19 | 2006-11-29 | Matsushita Electric Industrial Co., Ltd. | Halbleiter-lichtemissionsbauelement und beleuchtungseinrichtung |
| US20100051984A1 (en) * | 2008-09-02 | 2010-03-04 | Scott West | Phosphor-Converted LED |
| EP2325883A2 (de) * | 2009-11-20 | 2011-05-25 | Koito Manufacturing Co., Ltd. | Lichtemittierendes Modul und Fahrzeuglampe |
| DE102011013052A1 (de) * | 2011-03-04 | 2012-09-06 | Osram Opto Semiconductors Gmbh | Verfahren zur Herstellung zumindest eines optoelektronischen Halbleiterbauelements |
| US20130015472A1 (en) * | 2011-07-15 | 2013-01-17 | Advanced Optoelectronic Technology, Inc. | Method for packaging light emitting diodes and light emitting module having led packages formed by the method |
| WO2013021519A1 (en) * | 2011-08-08 | 2013-02-14 | Kabushiki Kaisha Toshiba | Semiconductor light emitting device and light emitting module |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102013103600A1 (de) | 2014-10-30 |
| DE112014001934A5 (de) | 2016-01-07 |
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