Classifications

• • 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
• • 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
  • H10H20/84—Coatings, e.g. passivation layers or antireflective coatings
• • 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
  • H01L2224/18—High density interconnect [HDI] connectors; Manufacturing methods related thereto
  • H01L2224/23—Structure, shape, material or disposition of the high density interconnect connectors after the connecting process
  • H01L2224/24—Structure, shape, material or disposition of the high density interconnect connectors after the connecting process of an individual high density interconnect connector
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
  • H01L25/00—Assemblies consisting of a plurality of semiconductor or other solid state devices
  • H01L25/03—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10D, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes
  • H01L25/04—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10D, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
  • H01L25/075—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10D, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H10H20/00
  • H01L25/0753—Assemblies consisting of a plurality of semiconductor or other solid state devices all the devices being of a type provided for in a single subclass of subclasses H10B, H10D, H10F, H10H, H10K or H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H10H20/00 the devices being arranged next to each other
• • 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

• Optoelectronic module An optoelectronic module is specified.
• An object to be solved is to provide an optoelectronic module which is particularly resistant to aging and has a long service life.
• the optoelectronic module comprises a carrier with at least one
• the carrier may be a
• PCB PCB or a carrier frame (leadframe) act. It is also conceivable that the carrier is flexible and
• the carrier may be provided with an electrically conductive material, for example a metal, or an electrically insulating material,
• a duro- or thermoplastic or a ceramic material may be formed.
• the carrier is formed with an electrically insulating material, it is conceivable that the carrier has connection points and conductor tracks on a mounting surface and / or a bottom surface opposite the mounting surface.
• the at least one contact point is formed with an electrically conductive material, for example a metal.
• this includes
• Optoelectronic module a radiation-emitting Semiconductor chip, wherein the radiation-emitting semiconductor chip has a first contact surface and a second
• the two contact surfaces serve for contacting the radiation-emitting semiconductor chip.
• the radiation-emitting semiconductor chip with the second contact surface is fastened on a connection point of the carrier and electrically contacted.
• the luminescence diode chip can be a luminescent or laser diode chip whose radiation-generating active zone emits radiation in the range from ultraviolet to infrared light.
• the first and second contact surfaces of the radiation-emitting semiconductor chip are preferably formed with an electrically conductive material, for example a metal.
• this includes
• Optoelectronic module an electrically insulating layer having a first and a second recess.
• the two recesses are then bounded laterally, for example, by the electrically insulating layer and each have two opposing ones
• the two recesses are then freely accessible from the outside.
• the first contact surface is arranged on the side of the radiation-emitting semiconductor chip which faces away from the carrier.
• the first contact surface is applied to the surface on the side facing away from the carrier side of the radiation-emitting semiconductor chip.
• the optoelectronic module comprises at least one electrically conductive conductive structure.
• the electrically conductive conductive structure can be, for example, electrical conductor tracks, which are preferably provided with a metal or a metal
• the electrically conductive conductive structure is formed with an electrically conductive adhesive or a metal paste.
• the electrically insulating layer is at least in places on the carrier and the semiconductor chip
• the electrically insulating layer is integrally formed in a form-fitting manner at these locations, so that neither a gap nor an interruption forms between the electrically insulating layer and the areas covered by the electrically insulated layer. Furthermore, the electrically insulating layer has the first one
• Recess in the region of the first contact surface and the second recess in the region of the contact point are thus arranged at least in places congruent to each other, so that the
• Recesses can be contacted through.
• the electrically conductive conductive structure is arranged on the electrically insulating layer and makes electrical contact with the first contact area with the contact point of the carrier.
• the electrically conductive Conductor formed on the electrically insulating layer form fit. In other words, there is preferably no gap or interruption between the electrically insulating layer and the electrically conductive conductive structure.
• the electrically conductive conductive structure is on the electrically insulating layer
• the recesses are filled at least in places with the guide structure.
• the electrically conductive conductive structure penetrates the recesses, so that the electrically conductive conductive structure is completely contacted with the semiconductor chip.
• the recess is filled, for example, with the material of the electrically conductive guide structure.
• the electrically insulating layer is predominantly formed with a ceramic material.
• "Predominantly” means that the electrically insulating layer contains at least 50% by weight, preferably at least 75% by weight, of ceramic material. It is also conceivable in this context that the electrically insulating layer is made entirely of a ceramic
• the electrically insulating layer consists of a glass ceramic, which consists of a molten glass by controlled crystallization
• this includes
• Optoelectronic module a carrier with at least one contact point and a radiation-emitting
• the optoelectronic module comprises an electrically insulating layer, which has a first and a second recess, and at least one
• the first contact surface is on the side facing away from the carrier of the
• the electrically insulating layer is applied at least in places to the carrier and the semiconductor chip and has the first recess in the region of the first contact surface and the second recess in the region of the second contact point.
• the electrically conductive conductive structure is arranged on the electrically insulating layer and makes electrical contact with the first contact area with the contact point of the carrier. Furthermore, the electrically insulating layer is formed predominantly with a ceramic material.
• the optoelectronic module described here is based inter alia on the finding that an electrically insulating layer formed with organic materials, which is used, for example, in optoelectronic modules with planar contacting, has little aging stability. This means that external influences such as
• Optoelectronic module for example, a brittle electrically insulating layer. This means that such an optoelectronic module can already exhibit aging-related damage after a short period of operation.
• the optoelectronic module described here makes use, inter alia, of the idea to form the electrically insulating layer predominantly with a ceramic material. Ceramic materials are more resistant to aging, especially in the case of external radiation and heat, as a result of which such an electrically insulating layer has hardly any material damage, even under heavy external stress, even after a prolonged period of operation.
• such an optoelectronic module is created, which has a greatly increased lifetime.
• this includes
• Optoelectronic module at least two radiation-emitting semiconductor chips, wherein the electrically insulating layer in places between the radiation-emitting
• Semiconductor chips is arranged. For example, intermediate spaces are formed between the semiconductor chips. In other words, the semiconductor chips are then arranged at a distance from one another. For example, the intermediate spaces are filled with the material of the electrically insulating layer.
• the electrically insulating layer then touches and covers side surfaces of the semiconductor chips
• the electrically insulating layer is up to the
• Optoelectronic module and the electrically insulating layer forms neither a gap nor an interruption.
• the electrically insulating layer assumes the function of an encapsulation layer, for example of the radiation-emitting semiconductor chips. That may mean the semiconductor chips are completely encapsulated by the electrically insulating layer up to areas of electrical contacting.
• the radiation-emitting semiconductor chips are advantageously protected against mechanical influences, such as impacts.
• the electrically insulating layer is
• the insulating layer preferably only partially absorbs the radiation emitted by the active layer.
• the electromagnetic radiation emitted by the radiation-emitting semiconductor chips can thus at least partially pass through the electrically insulating layer from the
• Optoelectronic module to be decoupled.
• the electrically insulating layer consists of a ceramic phosphor. Is the electrically insulating
• insulating layer of the semiconductor chip primarily emitted electromagnetic radiation partially absorb and at least partially the primary emitted radiation in
• the electrically insulating layer thus has the function of a light converter.
• the electrically insulating layer then consists of YAG: Ce.
• the first recess extends electrically insulating layer throughout between the
• the contact surface and the carrier may mean that the radiation exit surface as well as one or more of the side surfaces of the semiconductor chip are at least partially "exposed".
• the first recess in the electrically insulating layer extends continuously between adjacent ones
• adjacent in this context means that the semiconductor chips are arranged in pairs, for example, and each pair between them forms the gap.
• Radiation exit surfaces of the semiconductor chips are free from the electrically insulating layer.
• Insulation layer arranged.
• Isolation layer the spaces between the
• the insulating layer and the electrically insulating layer are formed with the same material.
• the electrically insulating layer is a foil.
• the electrically insulating layer then preferably has a layer thickness of 10 to 300 ⁇ m, preferably of 150 ⁇ m.
• the electrically insulating layer consists of a plurality of individual films, which can be arranged one above the other, for example glued on, and thus form a stape-shaped film composite.
• the films are hybrid films or even multilayer films.
• “hybrid films” refers to a film formed with a ceramic material in a polymer matrix.
• Multilayer films are, for example, ceramic films with an adhesive coating.
• the electrically insulating layer is applied by means of a laminating process. If the electrically insulating layer is a film, it can be laminated to exposed outer surfaces, for example the semiconductor chips and the mounting surface of the carrier, by means of the laminating process.
• the electrically insulating layer is applied by means of a sintering process.
• the applied material of the electrically insulating layer by means of high-energy laser light or by means of
• the material of the electrically insulating layer is present for example in the form of a nanopowder or a composite.
• the electrically insulating layer is applied by means of a molding process. For example, before applying the material to the electrically insulating layer a stamp on the
• the material of the electrically insulating layer can then be sprayed on. After curing, the punches can then be removed, whereby the recesses in the electric
• the material of the electrically insulating layer is in the form of a dispersion or an aerosol.
• the features according to which the electrically insulating layer is applied via a lamination process, a sintering process or a mold process are each objective features, since the application method can be detected directly on the optoelectronic module.
• the electrically insulating layer is sprayed on.
• the material of the electrically insulating layer is present, for example, in volatile solution or in a polymer matrix.
• the material of the electrically insulating layer can be applied by means of selective deposition, for example by means of a plasma process, a plasma spray process or by sputtering.
• the electrically insulating layer is applied by means of a stencil printing process.
• a prefabricated template is placed on the carrier and the semiconductor chips, which has, for example, in the region of the contact points / surfaces covers.
• FIGS 1 and 2 show schematic views of
• FIGS. 3a to 3d show individual production steps for
• FIG. 1 shows a schematic side view of an embodiment of a described here
• a carrier 1 has a
• a radiation-emitting semiconductor chip 2 is applied, which has an active zone for generating electromagnetic
• the radiation-emitting semiconductor chip 2 has a first contact surface 2A and a second contact surface 2B. The radiation-emitting
• Semiconductor chip 2 is applied with its second contact surface 2A on the mounting surface 11 of the carrier 1 and there with the carrier 1 electrically contacted.
• the radiation-emitting semiconductor chip 2 is adhesively bonded or connected to the carrier 1 by means of a solder material.
• On exposed side surfaces 9 of the semiconductor chip 2 and a radiation exit surface 3 of the semiconductor chip 2 is
• the electrically insulating layer 4 covers the mounting surface 11 of the carrier 1 in the region 21, so that the electrically insulating layer 4 extends without interruption between the contact point 1A and the first contact surface 2A.
• Layer 4 has a first recess 4A, which is continuous between the radiation exit surface 3 along the
• Recess 4A is therefore of the carrier 1 and the first
• electrically insulating layer 4 An electrically conductive conductive structure 8 contacts the first contact surface 2A with the contact point 1A of the carrier 1 electrically.
• the electrically conductive conductive structure 8 is printed on the electrically insulating layer 4 and the two contact surfaces 1A and 2A.
• the electrically insulating layer 4 is a film which by means of a
• the electrically insulating layer 4 consists of a ceramic material. It is also conceivable that the electrically insulating layer 4 of a ceramic
• Phosphor consists and the electrically insulating layer 4 at least partially from the radiation-emitting
• Semiconductor chip 2 primarily emitted electromagnetic Radiation converts radiation of different wavelength, so that the optoelectronic module 100 emits mixed light.
• FIG. 2 shows the optoelectronic module 100 with two radiation emitters arranged next to one another
• the semiconductor chips 2 form between them an intermediate space 12, which is delimited laterally in each case by the side surfaces 9 and by the carrier 1.
• an insulating layer 5 is arranged, which at least partially fills the gap 12 and is positively applied to the side surfaces 9 and the carrier 1. It is also conceivable that instead of or in addition to the insulating layer 5, the electrically insulating layer 4 is introduced into the intermediate space 12.
• the first recess 4A runs without interruption between the two semiconductor chips 2 and is through the contact surfaces 2A
• FIGS. 3a to 3d show individual production steps for producing an exemplary embodiment of one here
• the carrier 1 is provided, the semiconductor chips 2 being applied to the mounting surface 11 of the carrier 1.
• contact surfaces 2A of the semiconductor chips 2 covered with a paint 50.
• the contact surfaces can be covered with films, a wax or other adhesive layers. According to the figure 3c is in a further step
• Radiation exit surfaces 3 are covered at least in places with the electrically insulating layer 4.
• the material of the electrically insulating layer 4 can be applied by means of selective deposition, for example by means of a plasma process, a plasma spray process or by sputtering.
• the paint 50 is removed in the figure 3d by means of a physical and / or mechanical material removal, so that at least the contact surfaces 1A and 2A are exposed.
• the radiation exit surfaces 3 are then completely covered with the material of the electrically insulating layer 4 up to the points where the contact surfaces 2A extend, wherein in the present case the electrically insulating layer 4 is formed with a radiation-transmissive ceramic or consists of a ceramic phosphor.
• Lead structures 8 take place at locations of the contact points 1A and 2A.
• the application of the electrically insulating layer 4 can take place by means of the use of a pre-structured mask. For example, the electric
• insulating layer 4 are then applied by a spraying process, for example by means of plasma deposition.

Landscapes

• Led Device Packages (AREA)
• Photovoltaic Devices (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=43333046

Family Applications (1)

Country Status (8)

Families Citing this family (8)

Family Cites Families (16)

• 2009
  • 2009-09-18 DE DE102009042205A patent/DE102009042205A1/de not_active Withdrawn
• 2010
  • 2010-09-06 WO PCT/EP2010/063035 patent/WO2011032853A1/de active Application Filing
  • 2010-09-06 JP JP2012529207A patent/JP2013505561A/ja active Pending
  • 2010-09-06 CN CN2010800416619A patent/CN102576707A/zh active Pending
  • 2010-09-06 EP EP10752334A patent/EP2478557A1/de not_active Withdrawn
  • 2010-09-06 US US13/496,805 patent/US20120228666A1/en not_active Abandoned
  • 2010-09-06 KR KR1020127009750A patent/KR20120080608A/ko not_active Withdrawn
  • 2010-09-09 TW TW099130463A patent/TW201117439A/zh unknown

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events