WO2014033166A1 - Optoelektronisches halbleiterbauteil - Google Patents
Optoelektronisches halbleiterbauteil Download PDFInfo
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- WO2014033166A1 WO2014033166A1 PCT/EP2013/067812 EP2013067812W WO2014033166A1 WO 2014033166 A1 WO2014033166 A1 WO 2014033166A1 EP 2013067812 W EP2013067812 W EP 2013067812W WO 2014033166 A1 WO2014033166 A1 WO 2014033166A1
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- optoelectronic semiconductor
- semiconductor chip
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- 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
- H10H20/852—Encapsulations
- H10H20/854—Encapsulations characterised by their material, e.g. epoxy or silicone resins
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- H—ELECTRICITY
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- 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
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- H—ELECTRICITY
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- 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
- H10H20/83—Electrodes
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- 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
- H10H20/83—Electrodes
- H10H20/831—Electrodes characterised by their shape
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- 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
- H10H20/83—Electrodes
- H10H20/831—Electrodes characterised by their shape
- H10H20/8312—Electrodes characterised by their shape extending at least partially through the bodies
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- H—ELECTRICITY
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- 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
- H10H20/83—Electrodes
- H10H20/831—Electrodes characterised by their shape
- H10H20/8314—Electrodes characterised by their shape extending at least partially onto an outer side surface of the bodies
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- H—ELECTRICITY
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- 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
- H10H20/83—Electrodes
- H10H20/832—Electrodes characterised by their material
- H10H20/835—Reflective materials
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- H—ELECTRICITY
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- 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
- H10H20/852—Encapsulations
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- 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
- H10H20/852—Encapsulations
- H10H20/853—Encapsulations characterised by their shape
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- 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
- H10H20/855—Optical field-shaping means, e.g. lenses
- H10H20/856—Reflecting means
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- H—ELECTRICITY
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- 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]
- H10H20/01—Manufacture or treatment
- H10H20/036—Manufacture or treatment of packages
- H10H20/0362—Manufacture or treatment of packages of encapsulations
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- 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]
- H10H20/01—Manufacture or treatment
- H10H20/036—Manufacture or treatment of packages
- H10H20/0363—Manufacture or treatment of packages of optical field-shaping 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]
- H10H20/01—Manufacture or treatment
- H10H20/036—Manufacture or treatment of packages
- H10H20/0364—Manufacture or treatment of packages of interconnections
Definitions
- the present invention relates to an optoelectronic device
- German priority application DE 10 2012 215 524.4 which forms part of the disclosure of the present application, also describes an optoelectronic semiconductor device and a method for producing an op ⁇ toelektronischen Semiconductor device.
- a method for producing an optoelectronic semiconductor device in which optoelectronic semiconductor chips are embedded in a shaped body which covers all side surfaces of the optoelectronic semiconductor chips. Upper and lower sides of the op ⁇ toelektronischen semiconductor chips remain preferably free. Contact points may be provided on the upper and / or lower sides of each semiconductor chip. Together with the optoelectronic semiconductor chips, electrical through contacts can be embedded in the molded body. By means of an electrically conductive connection on a surface of the shaped body, a contact point of a semiconductor chip can be electrically conductively connected to a through-connection.
- An object of the present invention is to provide an optoelectronic semiconductor device. This object is achieved by an optoelectronic semiconductor component with the features of claim 1.
- a further object of the present invention is to specify a method for producing an optoelectronic semiconductor component. This task is performed by a procedure with the Characteristics of claim 10 solved. Further developments are specified in the dependent claims.
- An optoelectronic semiconductor component comprises an optoelectronic semiconductor chip, which is embedded in an electrically insulating molded body having an upper side and a lower side.
- a through-contact is embedded in the molded body, which forms an electrically conductive connection between the upper side and the lower side of the molded body.
- Au ßerdem is arranged a reflec ⁇ Rende layer on the top of the mold body forming an electrically conductive Ver ⁇ connection between an electrical contact of the semiconductor chip and the via.
- the reflective layer covers the top of the molding at least 50%.
- the reflective layer simultaneously fulfills the function of an electrically conductive connection between the electrical contact of the semiconductor chip and to form the through ⁇ contact, and the function of the top of the mold body of the optoelectronic semiconductor component reflec ⁇ rend form in this optoelectronic semiconductor component, so to mirror.
- the reflective upper side of the shaped body of the semiconductor component prevents absorption of light in the material of the shaped body, which advantageously increases an effectively usable luminous power of the optoelectronic semiconductor component.
- the double-radio ⁇ tion of the reflective layer on top of the molding allows to form the opto-electronic semiconductor device very compact and inexpensive to manufacture.
- an upper side of the semiconductor chip is oriented in the same direction as the upper side of the shaped body.
- the upper side of the semiconductor chip is a radiation emitter. tread surface of the semiconductor chip.
- at least part of the upper side of the semiconductor chip is neither covered by the shaped body nor by the reflective layer.
- a Lichtaus ⁇ coupling of the optoelectronic semiconductor chip can be carried out in this semiconductor device through the top of the semiconductor ⁇ chip, without the radiation leakage is hindered or limited by the shaped body or the reflective layer.
- a dielectric is arranged between the upper side of the shaped body and the reflective layer in the region of the electrically conductive connection between the electrical contact of the semiconductor chip and the through contact. Advanta- geous enough, the dielectric prevents an electrical short circuit ⁇ rule or flashover between the reflective layer and a potential-carrying region of the optoelectronic semiconductor chip.
- the dielectric can be arranged by simple and inexpensive processes on the top of the molding.
- the dielectric comprises benzocyclobutene. ⁇ beneficial way legally, this allows easy processing of the dielectric.
- benzocyclobutene has a suffi ⁇ sponding dielectric strength.
- the dielectric has a thickness between 50 nm and 500 nm.
- the dielectric then provides a sufficient insulation resistance in typically during operation of the optoelectronic semiconductor device on ⁇ passing electrical voltages.
- a first portion of the reflective layer is electrically isolated from a second portion of the reflective layer.
- the first section forms the electrical electrically conductive connection between the electrical contact of the semiconductor chip and the contact.
- the first section and the second section of the reflective layer can then be at different electrical potentials during operation of the optoelectronic semiconductor component. Nevertheless, the first portion and the second portion of the reflective layer may advantageously be manufactured together, whereby the optoelectronic semiconductor device is easily and inexpensively available.
- the shaped body covers a part of the upper side of the semiconductor chip.
- the part of the shaped body which covers the upper side of the semiconductor chip can advantageously provide electrical insulation between the electrically conductive connection between the electrical contact of the semiconductor chip and the through contact and a potential-carrying section of the optoelectronic semiconductor chip, as a result of which short circuits and electrical arcing are prevented.
- the shaped body has a thickness of between 50 nm and 500 nm over the part of the upper side of the semiconductor chip.
- the part of the upper surface of the semiconductor chip covering part of the shaped body forms a sufficient electric breakdown strength for ⁇ usually seen during operation of the optoelectronic semiconductor component occurring electric voltages in this semiconductor device.
- the optoelectronic semiconductor device comprises the reflecting layer of silver or aluminum s ⁇ nium.
- the reflective offers are not limited to silver or aluminum s ⁇ nium.
- a method of manufacturing an optoelectronic semiconductor device comprising the steps of embedding a optoe ⁇ lektronischen semiconductor chip and a via in egg ⁇ NEN molded body having a top and a bottom, an electrically conductive connection WO at the via Zvi ⁇ rule the top and bottom of the tablet bil ⁇ det, for arranging a reflective layer on the upper side of the molded body, wherein the reflective layer forms an electrically conductive connection between an electrical contact of the semiconductor chip and the contact, and wherein the reflective layer, the top of the Formkör ⁇ pers covered to at least 50% ,
- the reflective layer of the Herge by this method ⁇ presented optoelectronic semiconductor component simultaneously fulfills the function to provide an electrically conductive connection between the electrical contact of the semiconductor chip and to provide the through ⁇ contact, and the function of the molded body of the optoelectronic semiconductor device with a reflective top , As a result, the process
- the dielectric can electrically insulate the reflective layer against potential-carrying parts of the optoelectronic semiconductor chip, thereby preventing short circuits and / or flashovers.
- the dielectric is arranged by a first photolithographic process steps on the upper side of the shaped body.
- the arrangement of the dielectric can then take place with high precision and reproducibility.
- the reflec ⁇ Rende layer is disposed by a second photolithographic process step on the upper surface of the mold body and structured.
- the arrangement of the reflective layer with high accuracy and Repro ⁇ ducibility can then take place.
- a first photoresist is arranged on an upper side of the semiconductor chip before the semiconductor chip is embedded in the molded body.
- Advantage ⁇ way legally the first photoresist can then be used to protect a radiation exit area on top of the semiconductor chips ⁇ .
- the first photo ⁇ varnish on the top of the semiconductor chip is arranged, while ⁇ ing the semiconductor chip is in a wafer composite with other semiconductor chips.
- the arrangement of the first photoresist then takes place simultaneously for many semiconductor chips, which drastically reduces the costs for carrying out the method per semiconductor chip.
- a second photoresist on the top surface of the shaped body is arranged ⁇ prior to placement of the reflective layer on the top surface of the molding.
- the arrangement of the second photoresist on the top surface of the molded body and a second photographic technique for generating the reflective layer on the upper side of the molded body can then be made non-critical by gross procedural ⁇ reindeer, thereby reducing the costs for implementing the method.
- Fig. 1 is a sectional view of two optoelectronic semiconductor chips for producing an optoelectronic
- Figure 2 shows a second processing status during their manufacture of the optoelectronic semiconductor device according to the ers ⁇ th embodiment.
- FIG 3 shows a third processing status during herstel ⁇ development of the optoelectronic semiconductor device according to the ERS th embodiment.
- FIG. 4 shows a fourth processing status during herstel ⁇ development of the optoelectronic semiconductor device according to the ers ⁇ th embodiment.
- 5 shows a plan view of the optoelectronic Halbleiterbau ⁇ part according to the first embodiment in the fourth processing state.
- 6 shows a section through the optoelectronic semiconductor ⁇ component according to the first embodiment in a fifth processing state;
- FIG. 7 shows a plan view of the optoelectronic semiconductor component according to the first embodiment in the fifth processing state
- 9 shows a plan view of the optoelectronic semiconductor component of the first embodiment; 10 shows a section through optoelectronic semiconductor chips for producing an optoelectronic semiconductor component according to a second embodiment; 11 shows a section through the optoelectronic semiconductor ⁇ component according to the second embodiment in a second processing state;
- FIG. 13 shows a section through the optoelectronic semiconductor ⁇ component according to the second embodiment in a fourth processing status
- FIG. 14 is a plan view of the optoelectronic semiconductor ⁇ component according to the second embodiment in the fourth processing state;
- 15 shows a section through the optoelectronic semiconductor ⁇ component according to the second embodiment in a fifth processing state
- 16 is a plan view of the optoelectronic semiconductor ⁇ component according to the second embodiment in the fifth processing state
- FIG. 18 is a plan view of the optoelectronic semiconductor ⁇ component according to the second embodiment
- Figure 19 is a sectional view of an optoelectronic semiconducting ⁇ terbauteil according to a third embodiment
- 20 is a plan view of the optoelectronic semiconductor ⁇ component according to the third embodiment
- FIG. 22 is a plan view of the optoelectronic semiconductor ⁇ component according to the fourth embodiment.
- Figure 1 shows in schematic representation a section through two optoelectronic semiconductor chip 100.
- the op ⁇ toelektronischen semiconductor chip 100 may be ⁇ example, be LED chips (light emitting diodes) act.
- the optoelectronic semiconductor chips 100 are formed identically or approximately identically and have been produced parallel to one another in common operations.
- the optoelectronic semiconductor chip 100 are arranged laterally next to one another and ne ⁇ still connected together.
- the optoelectronic semiconductor chips 100 may, for example, be located together with a multiplicity of further optoelectronic semiconductor chips 100 in a wafer composite.
- the further description of the optoelectronic semiconductor chips 100 is made by way of example with reference to one of the optoelectronic semiconductor chips 100.
- the optoelectronic semiconductor chip 100 comprises a substrate 110 with an upper side 111 and a lower side 112.
- the substrate 110 is electrically conductive and may, for example, comprise silicon.
- a first contact surface 121 is arranged, which is electrically conductive, and for example comprises a metal.
- a semiconductor 150 having an n-doped region 151 and a p-doped region 152 is disposed on the upper surface 111 of the substrate 110 of the optoelectronic rule ⁇ semiconductor chip 100.
- the p-doped region 152 faces the upper side 111 of the substrate 110.
- the n-doped region 151 faces away from the upper side 111 of the substrate 110.
- the semiconductor 150 is an epitaxially grown semiconductor crystal and may, for example, comprise gallium nitride (GaN).
- the n-doped region 151 of the semiconductor 150 and the side surfaces of the semiconductor 150 are covered by an electrically insulating passivation 160.
- a elekt ⁇ driven conductive second metallization 140 is disposed on the surface of the p-doped region 152 of the semiconductor 150.
- the second metallization 140 makes electrical contact to the p-doped region 152 of the semiconductor 150, and simultaneously serves as a mirror layer for reflecting the half ⁇ conductor 150 toward the substrate 110 emitted light.
- the second Metallisie ⁇ tion 140 is connected to a second contact surface 141 of electrically conductive material in a recess of the
- Passivation 160 is arranged and passes through the passivation 160 because ⁇ .
- the second metallization 140 is suit ⁇ covered by an insulating layer 130, which acts electrically insulating.
- a first metallization 120 is arranged, which is isolated by the insulating layer 130 electrically against the second metallization 140.
- the optoelectronic semiconductor chip 100 has a through contact 125.
- the via 125 is formed ⁇ as an opening that extends through the entire p-doped region 152 in the n-doped calculation 151st
- the walls of the opening are electrically insulated by portions of the insulating layer 130.
- the opening of the via 125 is filled with an electrically conductive material which is elekt ⁇ driven conductively connected to the first metallization 120th
- the first metallization 120 and the filling of the via 125 for example, the same material aufwei ⁇ sen. Via the contact 125 there is an electrically conductive tende connection between the first metallization 120 and the n-doped region 151 of the semiconductor 150th
- the first metallization 120 is arranged on the upper side 111 of the substrate 110 of the optoelectronic semiconductor chip 100.
- the semiconductor 150 may first be produced independently of the substrate 110 and provided with the passivation 160, the second metallization 140, the via 125, the insulation layer 130 and the first metallization 120, and only then be arranged on the top side 111 of the substrate 110. In this case, was first applied an electrically conductive solder layer on the Obersei ⁇ te 111 of the substrate 110th The solder layer on top 111 of substrate 110 was then bonded to first metallization 120 by epitaxial bonding.
- the passivation 160 may also be produced only after the semiconductor 150 has been arranged on the top side 111 of the substrate 110.
- the first contact surface 121 on the underside 112 of the sub ⁇ strats 110 is electrically conductively connected via the electrically conductive substrate 110, the first metallization 120 and the via 125 with the n-doped region 151 of the semiconductor 150th
- the second contact surface 141 is electrically conductively connected to the p-doped region 152 via the second metallization 140.
- the protected by the passivation 160 surface of the n-doped region 151 of the semiconductor 150 represents a Emis ⁇ sion section 161 and a radiation exit surface of the op ⁇ toelektronischen semiconductor chips 100th
- the semiconductor 150 generated light can be discharged through the emission region 161 from the optoelectronic semiconductor chip 100 become.
- Light emitted in the direction of the substrate 110 is previously reflected at the second metallization 140.
- a method will be explained below, which serves herzu- provide an optoelectronic semiconductor component ⁇ with the optoelectronic semiconductor chip 100th
- the optoelectronic semiconductor chips 100 of the composite shown in FIG. 1 are separated from one another and further processed individually.
- the side of the substrate 110 having the semiconductor 150 of the optoelectronic semiconductor chip 100 is pressed into a foil 180, as shown in FIG.
- the film 180 is a soft film which is held by a carrier not shown separately in FIG.
- the optoelectronic semiconductor chip 100 is pressed into the film 180 so far that the layers 120, 130, 160 arranged on the upper side 111 of the substrate 110 lie flush against the film 180. Thus, no gap remains between the passivation 160 and the film 180.
- the side surfaces of the opto ⁇ lectronic semiconductor chip 100 are not pressed into the film 180.
- the passivation 160 and the second contact surface 141 of the optoelectronic semiconductor chip 100 are covered and protected by the foil 180, while all other surfaces of the optoelectronic semiconductor chip 100 remain completely uncovered and free.
- Figure 2 also shows a lead pin 170 of a elekt ⁇ driven conductive material.
- an electrically conductive Oberrisemetallisie ⁇ tion 171 is arranged on an upper surface of the conductor pin 170.
- an electrically conductive bottom metallization 172 is arranged on an underside of the conductor pin 170.
- the conductor pin 170 may, for example, consist of a printed circuit board material, and connects the upper ⁇ waremetallmaschine 171 electrically connected to the bottom metallization 172.
- the length of the lead pin 170 is sized such that the distance between the Obertouchmetallisie ⁇ tion 171 and the bottom metallization 172 approximately to the distance between the second contact surface 141 and the first Contact surface 121 of the optoelektronsichen semiconductor chip 100 corresponds.
- the conductor pin 170 is arranged laterally next to the optoelectronic semiconductor chip 100.
- the top metallization 171 faces the film 180 and is pressed into the film 180 such that the surface of the top metallization 171 is covered and protected by the film 180.
- the optoelectronic semiconductor chip 100 and the conductor pin 170 can be held in the position shown in Figure 2 by a holding device, not shown.
- the optoelectronic semiconductor chip 100 and the lead pin 170 by a second carrier and a second sheet can be maintained, which is arranged on the side of the first contact surface 121 and the bottom metallization 172 and the first contact surface 121 and the bottom metal ⁇ capitalization covers 172 and protects.
- the optoelectronic semiconductor chip 100 and the conductor pin 170 are embedded in a molded body 190.
- the opto ⁇ lectronic semiconductor chip 100 and the conductor pin 170 are surrounded in a mold process with a mold mass. If the bottom 112 of the substrate 110 with the first Druckflä ⁇ surface 121 and the underside of the lead pin 170 are arranged with the Un ⁇ terroughmetallmaschine 172 on a carrier or a film, the mold mass between the film 180 and the lower support is introduced.
- FIG. 3 shows a section through the resulting molded body 190 with the embedded optoelectronic semiconductor chip 100 and the conductor pin 170 also embedded in the molded body 190.
- a possibly present lower carrier or a lower foil are not shown here.
- the Formkör ⁇ per 190 has an electrically insulating material.
- FIG. 4 shows a section through the molded body 190 with the embedded optoelectronic semiconductor chip 100 and the embedded conductor pin 170 after removal of the film 180.
- the molded body 190 has an upper side 191 and a lower side 192.
- the upper side 191 of the molded body 190 terminates flush with the passivation 160 of the optoelectronic semiconductor chip 100.
- the second contact surface 141 of the optoelectronic semiconductor chip 100 was protected by the foil 180 and is now raised above the upper side 191 of the molded body 190 and is therefore accessible.
- the upper side of the upper side metallization 171 of the conductor pin 170 was also protected by the film 180 and is now not covered by the molded body 190, but accessible via the upper side 191 of the molded body 190.
- the underside 192 of the molded body 190 terminates flush with the underside 112 of the substrate 110 and the underside of the conductor pin 170.
- the first contact surface 121 on the underside 112 of the sub ⁇ strats 110 of the optoelectronic semiconductor chip 100 and the bottom metallization 172 of lead pin 170 are not covered by the molded body 190, but at the bottom 192 of the mold body 190 accessible.
- Figure 5 shows a view of the top 191 of the mold ⁇ body 190 with the embedded optoelectronic semiconductor chip 100 and also embedded in the mold body 190 conductor pin 170. Visible are the passivation 160 on top of the optoelectronic semiconductor chip 100 with the emission region 161, the second contact surface 141 of the optoelectronic semiconductor chip 100 and the top 18.metallmaschine 171 of the lead pin 170. Also represents made ⁇ in Figure 5 is a section line AA, where the molded body 190, the optoelectronic semiconductor chip 100 and the lead pin is cut in the illustration of FIG 4170 are.
- an insulation section 200 is applied to the upper side 191 of the molding 190 by means of a photolithographic process.
- the isolation section 200 may be applied by stencil printing, screen printing, jetting, dispensing, stamping, or any other method.
- FIG. 6 shows a sectional view of the molded body 190 with the embedded optoelectronic semiconductor chip 100, the embedded conductor pin 170 and the insulation section 200 arranged on the upper side 191 of the molded body 190.
- FIG. 7 shows a plan view of the upper side 191 of the molded body 190 with the insulation section 200 arranged thereon ,
- the insulating portion 200 is disposed on the upper surface 191 of the molded body 190 in a lateral region between the second contact surface 141 of the optoelectronic semiconductor chip 100 and the upper surface metallization 171 of the conductor pin 170.
- the insulating portion 200 comprises an electrically insulating material.
- the isolati ⁇ onsabêt 200 may include a dielectric such as benzocyclobutene (BCB).
- the insulating portion 200 may orga ⁇ African materials such as acrylates, epoxies, silicones, polyimides, or inorganic materials such as silicon oxide, Siliziumnit ⁇ rid have.
- the insulation portion 200 has a thickness sufficient to prevent dielectric breakdown when a elekt ⁇ generic voltage is applied across the insulating portion 200, which corresponds to a maximum voltage occurring during operation of the optoelectronic semiconductor chip 100th
- the insulation portion 200 may have a thickness sufficient to prevent electrical breakdown when a voltage of 5 V is applied across the insulation portion 200 in the thickness direction.
- the insulation portion 200 preferably has a thickness Zvi ⁇ rule 50 nm and 2 pm, more preferably a thickness between 50 nm and 500 nm, for example, a thickness of 200 nm.
- the thickness may be al- lerdings several pm and for example in the range between 20 Be ⁇ pm and 100 pm are.
- a third metal ⁇ islation 210 with a mirror portion 211 and a contact portion 212 on the top 191 of the molded body 190 with the embedded optoelectronic semiconductor chip 100 and the embedded conductor pin 170 is applied.
- FIG. 8 shows a sectional view of the optoelectronic semiconductor component 10 obtained after this method step.
- FIG. 9 shows a plan view of the optoelectronic semiconductor component 10.
- the contact section 212 of the third metallization 210 establishes an electrically conductive connection between the second contact surface 141 of the optoelectronic semiconductor chip 100 and the top side metallization 171 of the conductor pin 100.
- the contact portion 212 is thus arranged on the second Kon ⁇ clock face 141, the top metallization 171 and the arranged between the contact surface 141 and the top metallization 171 insulating section 200th
- there is an electrically conductive connection between the bottom side metallization 172 of the conductor pin 170 via the conductor pin 170, the top side metallization 171 of the conductor pin 170 and the contact portion 212 of the third metallization 210 to the second contact surface 141 of the optoelectronic semiconductor chip 100 of the optoelectronic semiconductor chip 100 is, as already explained, electrically conductively connected to the p-doped region 152 of the semiconductor 150.
- the opto-electronic semi ⁇ semiconductor chip 100 of the optoelectronic semiconductor component 10 electrically connected by the first contact surface 121 and the Untersei- metalization 172 are contacted, both of which are accessible at the bottom 192 of the molding 190 of the optoelectronic semiconductor device 10.
- the optoelectronic Semiconductor component 10 is thereby suitable for mounting according to an SMT (Surface Mount Technology) process.
- an electrical voltage is applied between the first contact surface 121 of the optoelectronic semiconductor chip 100 and the underside metallization 172 of the conductor pin 170 during operation of the optoelectronic semiconductor component 10, this voltage also falls between the contact portion 212 and the first metallization 120 of the optoelectronic semiconductor chip 100 via the insulation portion 200 from.
- Di ⁇ cke and electrical breakdown strength of Isolationsab ⁇ section 200 are dimensioned so that no electrical Durcbschlag occurs.
- the mirror portion 211 of the third metallization 210 is separated by lateral isolation trenches 212 from the contact portion of the drit th ⁇ metallization 210 and electrically insulated against the latter.
- the mirror portion 211 covers a large part of the upper surface 191 of the molded body 190. However, the mirror portion 211 does not substantially cover the emission region 161 of the optoelectronic semiconductor chip 100. In the regions of the molded article 190 in which neither the optoelectronic semiconductor chip 100 nor the conductor pin 170 are arranged, the mirror portion 211 of the third metallization 210 covers at least 50% of the top 191 of the
- Shaped body 190 preferably at least 90%.
- the mirror portion 211 covers the top surface 191 of the molded body 190 outside the optoe ⁇ lektronischen semiconductor chip 100 and the semiconductor chip 170 almost completely.
- the third metallization 210 may include silver (Ag), for example. In this case, the third metallization 210 has a high electrical conductivity and a good optical reflectance. Alternatively, the third metallization 210 may also include aluminum (AI), which is less expensive to obtain than silver and is associated with a lower risk of corrosion. In both cases is a combination possible with a dielectric mirror.
- the third Metalli ⁇ tion 210 can be formed as a metal pile and for example, titanium (Ti) and chromium (Cr), nickel (i), Pal ⁇ ladium (Pd) and platinum (Pt), copper (Cu) or silver (Ag) and aluminum (AI).
- the mirror portion 211 of the third metallization 210 increased by an effective luminous flux of the optoelectronic semiconductor device 10.
- the mirror must ⁇ portion 210 at least half of the upper surface 191 of the mold body 190 covering, preferably at least 90%.
- the third metallization 210 with the mirror portion 211 and the contact portion 212 was applied by a photolithographic method.
- the third metallization 210 is initially ganzflä ⁇ chig deposited on top of 191 of the mold body 190, the upper side and the emission region 161 of the optoelectronic semiconductor chip 100 and the top metallization 171 of the lead pin 170th
- the third Metalli ⁇ tion was passivated after deposition.
- the emission region 161 of the optoelectronic semiconductor chip 100 and the region of the separation trenches later applied between the mirror section 211 and the contact section 212 and the around the mirror ⁇ section 211 are first protected by a photoresist.
- the third Metallisie ⁇ tion 210 is deposited and then removed in the previously protected by photoresist areas by lift-off process again.
- the third metallization 210 thereby remains ⁇ section 211 and in the contact portion 212.
- the deposition of the third metallization 210 can be made in this variant example, by sputtering, vapor deposition or an electroplating method in Spiegelab.
- the third metallization 210 may also be applied by printing metal pastes with screen or stencil printing or by jetting metal pastes.
- a plurality of optoelectronic semiconductor chips 100 and a corresponding plurality of conductor pins 170 are embedded laterally spaced from one another simultaneously into a common molded body 190.
- insulating portions 200 are simultaneously applied between the second contact surfaces 141 of all the optoelectronic semiconductor chips 100 and the top side metallizations 171 of the respective associated conductor pins 170.
- the application of the third metallization 210 with Spiegelab- section 211 and contact portion 212 is performed in parallel for al ⁇ le in the joint moldings 190 embedded optoelectronic semiconductor chip 100. Only then are the ER- testify optoelectronic semiconductor devices 10 separated by dividing the shaped body 100 from each other.
- FIG. 10 again shows a sectional illustration of the optoelectronic semiconductor chip 100 still in a wafer composite with further optoelectronic semiconductor chips 100.
- a layer of photoresist 220 was applied on top of the passivation 160.
- the second contact surface 141 is not covered by the photoresist 220.
- the application of the photoresist 220 is effected by means of photographic technology.
- the optoelectronic semiconductor chip 100 is separated from the wafer composite with the further optoelectronic semiconductor chips 100.
- the upper side of the optoelectronic semiconductor chip 100 having the photoresist 220 is again pressed into a foil 180.
- the suppressed but 100 so far in the film 180 optoelectronic half ⁇ semiconductor chip that covered by the photoresist 220 regions and the top of the second contact surface 141 of the optoe ⁇ lektronischen semiconductor chips are in contact with the foil 180 100th
- the resist not covered by the photoresist 220 On the other hand, the passivation 160 of the optoelectronic semiconductor chip 100 does not come into contact with the film 180. A gap 181 thus remains between these regions of the passivation 160 and the film 180.
- a lead pin 170 having a top Capitalization Metal ⁇ 171 and a bottom metallization 172 is in turn so pressed into the sheet 180, that the Obertouchmetallisie- tion 171 is covered by the film 180 and protected.
- FIG. 13 shows a section through the shaped body 230 with the optoelectronic semiconductor chip 100 embedded in the shaped body 230 and the conductor pin 170 embedded in the shaped body 230 after removal of the foil 180.
- the shaped body 230 has an upper side 231 and a lower side 232.
- the bottom 232 of the mold body 230 is flush with the underside 112 of the substrate 110 of the optoelectronic rule ⁇ semiconductor chip 100 and the underside of the lead pin 170th
- arranged on the bottom 112 of the substrate 110 of the optoelectronic semiconductor chip 100 first contact surface 121 and the Unterremetallmaschine 171 on the underside of the conductor pin 170 are not covered by the form ⁇ body 230, but accessible at the bottom 232 of the molding 230.
- the upper side of the optoelectronic semiconductor chip 100 is partially covered by the molded body 230.
- an insulation section 233 of the molded body 230 has been formed, which is arranged above the sections of the passivation 160 of the optoelectronic semiconductor chip 100 not covered by the photoresist 220.
- the areas covered by the photoresist 220 regions of the optoelectronic semiconductor chip 100 and the top of two ⁇ th contact surface 141 of the optoelectronic semiconductor chip 100 are not, however, covered by the mold body 230, special countries raised above the top surface 231 of the shaped body 230th
- the previously protected by the film 180 Oberfitmetalli ⁇ tion 171 of the conductor pin 170 is accessible at the top 231 of the molding 230.
- Figure 14 shows a view of the top 231 of the mold ⁇ body 230, as protected by the photoresist 220 emission region 161 of the optoelectronic semiconductor chip 100, the second contact surface 171 of the optoelectronic semiconducting ⁇ terchips 100 and the top metallization 171 of the conductor pin 170. Also shown is a section line BB at which the optoelectronic semiconductor chip 100, the conductor pin 170 and the molded body 230 are cut in the illustration of FIG. In a subsequent method step, further photo ⁇ lacquer 240 on the top 231 of the molded body 230 is bringsschie ⁇ and structured.
- the patterned photoresist 240 covers additional portions of the upper ⁇ side 231 of the molded body 230 on which later separating trenches should exist in a fourth metallization.
- Figure 15 shows a section through the molded body 230 with the structured another photo-resist 240.
- Figure 16 shows a view of the top 231 with the further photoresist 240 and the photo ⁇ paint 220 in the emission region 161 of the optoelectronic semiconductor chip 100th
- the fourth metallization 250 covers the second contact surface 141 of the optoelectronic semiconductor chip 100, the iso ⁇ lationsabrough 233 of the molded body 230 and the top ⁇ metallization 171 of the conductor pin 170 and thus provides an electrically conductive connection between the second contact surface 141 of the optoelectronic semiconductor chip 100 and the top side metallization 171 of the conductor pin 170 ago.
- This also opto- lectronic semiconductor device 20 is suitable for surface mounting with ⁇ means of SMT process, wherein the optoelectronic semiconductor chip 100 of the optoelectronic semiconductor device 20 is contacted via the first contact surface 121 and the bottom side metallization 172.
- the insulation section 233 of the molded body 230 prevents the occurrence of an electrical breakdown between the four th metallization 250 and the first metallization 120, the substrate 110 or the first contact surface 121 of the optoe ⁇ lektronischen semiconductor chip 100. This requires that the isolati ⁇ onsabêt 233 have a sufficient insulation strength up.
- the optoelectronic semiconducting ⁇ terbauteils 20 may be between the fourth metallization 250 and 120 of the first metalization occur, for example, a potential difference of 5 V.
- the molded body 230 may include an epoxy resin having an electrical breakdown strength of, for example, 30 kV / mm.
- the insulating section 233 should be at least ⁇ have a thickness of 200 nm.
- the insulating portion 233 will have a thickness between 50 nm and 500 nm.
- the thickness of the insulation section 233 results from the height of the gap 181 in the method step illustrated in FIG. 11 during the production of the optoelectronic semiconductor component 20.
- the insulation section 233 thus becomes thinner the further the optoelectronic semiconductor chip 100 during the method step illustrated in FIG the film 180 is pressed.
- the optoelectronic ⁇ specific semiconductor chip 100 would not pressed into the sheet 180, a ⁇ , there would result a thickness of the insulating portion 233 corresponds to the height of the semiconductor 150, and 5 may be playing at ⁇ pm.
- non-required depression of the semiconductor chip 100 into the foil 180 simplifies the manufacturing process.
- the fourth metallization 250 additionally covers a great portion of the top 231 of the molding 230 in the lateral areas of the molded body 230, in which neither the optoe ⁇ lectronic semiconductor chip 100 nor the conductor pin 170, a ⁇ are embedded. In these areas of the molded body be ⁇ 230 covers the fourth metallization 250 at least 50% of the upper ⁇ side 231 of the molded body 230, preferably at least 90%.
- the fourth metallization 250 is preferably made of a material including Ma ⁇ good optical reflectivity, particularly preferably of silver.
- the fourth metallization 250 also aluminum (AI), which is cheaper available than silver and is associated with a lower risk of corrosion. In both cases, a combination with a dielectric mirror is possible.
- the fourth metallization 250 may also be formed as a metal stack and beispielswei ⁇ se titanium (Ti) and chromium (Cr), nickel (Ni), palladium (Pd) and platinum (Pt), copper (Cu) or silver (Ag) and aluminum (AI).
- the fourth metallization 250 serves as a mirror layer for reflection of light.
- the semiconductor 150 of the optoelectronic semiconductor chip 100 of the optoelectronic semiconductor device 20 light generated that is discharged through the TERMS ⁇ ons Scheme 161, can be reflected in the vicinity of the optoelectronic semiconductor component 20 back to the optoe ⁇ lektronischen semiconductor device 20th
- This light reflected back to the optoelectronic semiconductor component 20 light would be sorbed on the upper side 131 of the molding 230 from ⁇ and will be lost when the acting as a mirror layer metallization ⁇ tion would not be disposed on the top surface 250 231st
- the fourth metallization 150 reflects the light reflected back in the direction of the optoelectronic semiconductor component 20 again, as a result of which it can still be used.
- the fourth metallization 250 is enclosed in the lateral direction on the outside by separating trenches in which the fourth metallization 250 is removed and the upper side 231 of the molded body 230 is exposed. These are the lateral areas, was placed in de ⁇ nen in the previous process step of further photoresist 240th
- Figure 19 shows a schematic sectional view of an op ⁇ toelektronischen semiconductor device 30 according to a third embodiment.
- Figure 20 shows a plan view of the optoelectronic semiconductor device 30 of the third execution ⁇ form.
- Figure 20 shows a section line CC, of the optoelectronic semiconductor device was cut in the illustration of FIG 19 30.
- the optoelectronic half ⁇ guide component 30 has two optoelectronic semiconductor chips 300, which are referred to as the first chip 301 and the second chip 302nd
- the optoelectronic semiconductor device 30 could also have only one optoelectronic semiconductor chip 300 or more than two series-connected optoelectronic semiconductor chips 300.
- the first chip 301 and the second chip 302 are formed identically.
- An optoelectronic semiconductor chip 300 will be explained below by way of example.
- the optoelectronic semiconductor chip 300 has an epitaxially grown semiconductor 350 with an n-doped region 351 and a p-doped region 352.
- the semiconductor 350 may include gallium nitride (GaN), for example. Between the n-doped region 351 and the p-doped region 352, an active light-emitting layer is asbil ⁇ det. Light generated in the semiconductor 350 may pass through a surface of the n-doped region 351 formed Emis ⁇ sion region 361 are discharged from the semiconductor 350.
- the semiconductor 350 has a via 325.
- the via 325 comprises an opening that extends from a side of the p-doped region 352 facing away from the n-doped region 351 through the p-doped region 352 into the n-doped region 351.
- the mantle walls of these ⁇ ff ⁇ voltage are electrically in isolation by an insulating layer 330th Within the opening, an electrically conductive Ma ⁇ TERIAL a first metallization 320 is disposed.
- the via 325 may also include a plurality of parallel such openings.
- a second metallization 340 which provides an electrically conductive connection to the p-doped region 352, is arranged on the surface of the p-doped region 352 facing away from the n-doped region 351.
- the second metallization ⁇ tion 340 extends in a lateral direction beyond the semiconductor 350 and laterally next to the semiconductor 350 electrically conductive with a second contact surface 341 verse hen ⁇ .
- the second metallization 340 is covered on the side facing away from the semiconductor 350 by the insulating layer 330.
- the first metallization ⁇ tion 320 connects electrically conductively connected to the via 325 and electrically isolated by the insulating layer 330 of the second metallization 340th
- the first metallization 320 is connected in an electrically conductive manner to a first contact surface 321. From the first contact surface 321, there is an electrically conductive connection to the n-doped region 351 of the semiconductor 350 via the first metallization 320 and the via 325.
- the first metallization 320 is disposed on an upper surface 311 ei ⁇ nes substrate 310th
- the semiconductor 350 can be made to ⁇ next separated from the substrate 310 and with the Through hole 325, the second metallization 340, the second contact surface 341, the insulating layer 330, the first Me ⁇ tallmaschine 320 and the first contact surface 321 be provided. Subsequently, the first metallization 320 may have been connected by epitaxial bonding to a solder layer arranged on the upper side 311 of the substrate 310.
- the substrate 310 is an electrically insulating substrate and may, for example, comprise silicon.
- the substrate 310 has a high thermal conductivity.
- a thermal con tact ⁇ surface 322 is arranged which may have ⁇ example, a metal. From the semiconductor 350 produced waste heat over the substrate 310 and the thermal contact surface 322 meet ⁇ leads.
- a passivation 360 is arranged on the side of the semiconductor 350, the second metallization 340 and the insulation layer 330 facing away from the substrate 310. In the field of ers ⁇ th contact surface 321 and the second contact surface 341, the passivation openings 360, so that the first clock Kon ⁇ surface 321 and the second contact surface are accessible 341st
- the first chip 301 and the second chip 302 are embedded together in a molded body 390.
- the molded body 390 has been manufactured from a molding compound by a molding process and is electrically insulating.
- the molded body 390 has a top 391 and a bottom 392.
- the Un ⁇ underside 392 of the molded body 390 is flush with the Un ⁇ undersides 312 of the substrates 310 of both optoelectronic semiconductor chip 300th
- the lower sides 312 of the substrates 310 are not covered by the molded body 390, so that the thermal contact surfaces 322 on the lower sides 312 of the optoelectronic semiconductor chips 300 are accessible.
- the upper side 391 of the molded body 390 terminates flush with the passivations 360 of the optoelectronic semiconductor chips 300 in the regions of the passivations 360 located laterally next to the semiconductors 350.
- the first contact surfaces 321, the second contact surfaces 341 and the emission regions 361 of the optoelectronic semiconductor chips 300 are raised above the upper side 391 of the molded body 390 and are not covered by the molded body 390.
- a first conductor pin 370 and a second conductor pin 380 are embedded in the molded body 390, each of which provides an electrically conductive connection between the upper side 391 and the lower side 392 of the molded body 390.
- the first conductor pin 370 and the second conductor pin 380 are made of an electrically conductive material, for example a printed circuit board material.
- the first conductor pin 370 has a top metallization 371 and a bottom Metal ⁇ Capitalization 372nd
- the second conductor pin 380 has a top metallization 381 and a Untersellmetallisie ⁇ tion 382, respectively.
- the Oberdonmetallmaschineen 371, 381 of the lead pins 370, 380 are accessible at the top 391 of the Formkör ⁇ pers 390th
- the underside metallizations 372, 382 of the conductor pins 370, 380 are accessible at the bottom 392 of the molded body 390.
- Each insulation section 400 consists of an electrically insulating material, for example of a photo-structured dielectric, for example of benzocyclobutene (BCB).
- the insulating portions 400 may comprise organic materials such as acrylates, epoxies, silicones, polyimides, or inorganic materials such as Silizi ⁇ oxide, silicon nitride.
- the thicknesses of the insulating portions 400 are again sized to prevent electrical breakdown at normally occurring in operation of the op ⁇ toelektronischen semiconductor chip 300 electrical voltages.
- the thickness of the insulation sections 400 may for example be between 50 nm and 500 nm. If the insulation sections 400 are applied by means of jetting or by a screen printing process, however, the thickness can also amount to several ⁇ m and, for example, be in the range between 20 ⁇ m and 100 ⁇ m.
- a first insulating portion 401 is disposed in a lateral Be ⁇ reaching the upper surface 391 of the molded body 390 between the top metallization 371 of the first conductive pin 370 and the first contact surface 321 of the first opto-electronic semiconductor chips three hundred and first
- a second Isolationsab ⁇ section 402 is arranged in the lateral region of the upper surface 391 of the molded body 390 between the second contact surface 341 of the first optoelectronic semiconductor chip 301 and the first contact surface 321 of the second optoelectronic semiconductor chips 302nd
- a third insulation section 403 is arranged on the upper side 391 of the molded body 390 in a lateral region between the second contact surface 341 of the second optoelectronic semiconductor chip 300 and the top side metallization 381 of the second conductor pin 380.
- the optoelectronic semiconductor device 30 also includes egg ⁇ ne third metallization 410 cut on the top side 391 of the molding 390 and partially on the insulation distances is arranged 400th
- the third metallization 410 is preferably made of a material with good electrical conductivity and high optical reflectivity, for example, silver.
- the third Metalli ⁇ tion 410 also aluminum (AI), which is cheaper than silver and is associated with a lower risk of corrosion. In both cases, a combination with a dielectric mirror is possible.
- the third Metalli ⁇ tion 410 can be formed as a metal pile and for example, titanium (Ti) and chromium (Cr), nickel (i), PAL ladium (Pd) and platinum (Pt), copper (Cu) or silver (Ag) and aluminum (AI).
- the third metallization 410 comprises a mirror section 411, a first contact section 412, a second contact section 413 and a third contact section 414.
- the mirror section 411, the first contact section 412, the second contact section 413 and the third contact section 414 are separated from one another by separating trenches and thereby electrically isolated from each other.
- the first contact section 412 establishes an electrically conductive connection between the top side metallization 371 of the first conductor pin 370 and the first contact surface 321 of the first optoelectronic semiconductor chip 301.
- the second contact portion 413 establishes an electrically conductive Verbin ⁇ connection between the second contact surface 341 of the first optoelectronic semiconductor chip 301 and the first Druckflä ⁇ surface 321 of the second optoelectronic semiconductor chips 302nd
- the third contact section 414 establishes an electrically conductive connection between the second contact surface 341 of the second optoelectronic semiconductor chip 302 and the top side metallization 381 of the second conductor pin 380.
- third insulating portion 403 prevents an electrical breakdown between the third contact portion 414 and the first metallization 320 of the second optoelectronic semiconductor chip 302.
- the second insulation section 402 prevents entspre ⁇ accordingly electrical breakdown between the second contact-portion 413 and the first metallization 320 of the ERS ⁇ th optoelectronic semiconductor chips 300th
- 301 is the second contact surface 341 of this op ⁇ toelektronischen semiconductor chips 300, 301 via a contact ⁇ portion directly connected to the top metallization 381 of the second semiconductor chip 380 for sale.
- the third contact section 414 and the third insulation section 403 are omitted in this embodiment.
- the optoelectronic semiconductor component 30 can be electrically contacted.
- the optoelectronic half ⁇ guide component 30 is suitable for surface mounting according to an SMT process. In this case also the thermal contact surfaces 322 can be contacted to the optoelectronic semiconductor chips 300 heat producedplanfor ⁇ ren.
- the mirror portion 411 of the third metallization 410 loading covers a large part of the upper surface 391 of the molded body 390 of those areas of the molded body 390, in which neither the optoe ⁇ lektronischen semiconductor chip 300 nor the conductor pins 370 are arranged 380 for sale. In these lateral regions of the shaped body 390, the mirror portion 411 covers at least 50% of the upper side 391 of the shaped body 390, preferably at least 90%. As a result, the upper side 391 of the molded body 390 is substantially optically reflective.
- the emission regions 361 of the optoelectronic semiconductor chips 300 are not covered by the mirror section 411 of the third metallization 410.
- the optoelectronic semiconductor component 30 can be produced by the method explained with reference to FIGS. 1 to 9.
- An essential difference of the optoelectronic semiconductor component 30 relative to the optoelectronic semiconductor component 10 is that in the optoelectronic rule ⁇ semiconductor chip 300, the electrical contacts 321, 341 of both polarities are accessible at their upper side. Therefore, the optoelectronic semiconductor chip 300 have an isolate rendes substrate 310, while the optoelectronic semiconductor ⁇ semiconductor chip 100 having a conductive substrate 110th
- FIG. 21 shows a schematic sectional view of an optoelectronic semiconductor component 40 according to a fourth embodiment.
- Figure 22 shows a plan view of the optoe ⁇ lectronic semiconductor device 40 according to the fourth exemplary form.
- Figure 22 shows a sectional line D-D to which the optoelectronic semiconductor device was cut in the Dar ⁇ position of Figure 21 40th
- the optoelectronic semiconductor component 40 has an optoelectronic semiconductor chip 500.
- the optoelectronic semiconductor chip 500 comprises a semiconductor 550 having an n-doped region 551 and a p-doped region 552.
- the semiconductor 550 is in turn present as an epitaxially produced crystal and may, for example, comprise gallium nitride (GaN).
- the p-doped region 552 is disposed on a metallization ⁇ tion 540 on an upper surface 511 of an electrically conductive substrate 510th
- the substrate 510 may comprise silicon, for example.
- a second contact surface 541 is arranged, which may have, for example, a metal.
- the second Kunststoffflä ⁇ che 541 provides via the conductive substrate 510 and the metal ⁇ capitalization 540 an electrical connection to the p-doped region 552 of the Hableiters 550 ready.
- a first contact surface 521 is arranged on which there is an electrically conductive connection to the n-doped region 551 of the semiconductor 550th.
- the passivation 560 has in the region of the first contact surface 521 a
- Breakthrough so that the first contact surface 521 at the top of the optoelectronic semiconductor chip 500 is accessible ⁇ Lich.
- the optoelectronic half-chip 500 is embedded in an electrically insulating molded body 590.
- the molded body 590 has been manufactured using a molding process from a molding compound Herge ⁇ and thus corresponds to the moldings 190, 230, 390 of the embodiments described above.
- the molded body 590 has a top 591 and a bottom 592.
- the underside 592 of the molded body 590 terminates flush with the underside 512 of the substrate 510.
- the second clock Kon ⁇ surface 541 on the underside 512 of the substrate 510 is not covered by the molded body 590 and therefore accessible from outside.
- the upper surface 591 of the molded body 590 in turn terminates with the lateral portions of the passivation 560 that do not cover the semiconductor 550.
- a conductor pin 570 is embedded in the molded body 590, which provides an electrically conductive connection between the upper side 591 and the lower side 592 of the molded body 590.
- the conductor pin 570 has a top side metallization 571 and a bottom side metallization 572.
- the Oberdonme ⁇ tallmaschine 571 is accessible at the top 591 of the molding 590.
- the bottom metallization 572 is accessible at the bottom 592 of the molding 590.
- an insulation portion 600 is disposed on the top surface 591 of the molding body 590.
- the insulating portion 600 is made of an electrically insulating material such as a photo-structured dielectric such as benzocyclobutene.
- the isolation portion 600 may include organic materials such as acrylates, epoxies, silicones, polyimides, or inorganic materials such as silicon oxide, silicon nitride.
- the optoelectronic semiconductor device 40 further has a third metallization 610 with a mirror section 611 and a contact section 612.
- the third metallization 610 may comprise silver.
- the third metallization 610 may also comprise aluminum (Al). In both cases, a combination with a dielectric mirror is possible.
- the third metallization 610 can also be formed as a metal stack and, for example, titanium (Ti) and chromium (Cr), nickel (Ni), palladium (Pd) and platinum (Pt), copper (Cu) or silver (Ag) and aluminum (AI).
- the contact portion 612 extends between the first contact surface 521 of the optoelectronic semiconductor chip 500 via the insulating portion 600 to the top metallization 571 of the conductor pin 570 and electrically connects the first contact surface 521 with the conductor pin 570.
- the thickness of the insulation portion 600 is again such that during the operation of the optoelectronic Halbleiterbau ⁇ part 40 occurring voltages electrical breakdown between the contact portion 612 of the third metallization 610 and the metallization 540 of the optoelectronic semiconductor chip 500 is prevented.
- the mirror portion 611 is separated by lateral trenches from the contact portion 612 of the third metallization
- 591 of the molding 590 covers 611 min ⁇ least 50% of the mirror portion, preferably at least 90%.
- the optoelectronic semiconductor component 40 During operation of the optoelectronic semiconductor component 40, light generated in the semiconductor 550 is led out through the emission region 561. In the vicinity of the optoelectronic semiconductor component 40, reflections may occur, due to which part of the light emitted by the optoelectronic semiconductor component 40 generated light radiation back to the optoelectronic semiconductor device 40 is reflected.
- the cut Spiegelab- arranged ⁇ 611 on the top 591 of the shaped body 590th At the mirror section 611, the light is again reflectors ⁇ advantage and can thus leave the optoelectronic semiconductor assembly ⁇ some 40th This increases the usable portion of the light generated by the optoelectronic semiconductor component 40.
- the optoelectronic semiconductor component 40 can be produced by means of the method explained with reference to FIGS. 1 to 9. Alternatively, however, it is also possible to use the optoelectronic semiconductor chips 300 of FIGS. 19 and 20 or the optoelectronic semiconductor chip 500 of FIGS. 21 and 22 for producing an optoelectronic semiconductor component according to the method explained with reference to FIGS. 10 to 18.
- the optoelectronic semiconductor components 10, 20, 30, 40 wei ⁇ sen each lead pins 170, 370, 380, 570, which elekt ⁇ driven conductive connections (vias) between the tops and the bottoms of the respective moldings 190, 230 which provide 390, 590 .
- the embedding of the conductor pins 170, 370, 380, 570 into the molded bodies 190, 230, 390, 590 can be dispensed with. Instead, after the production of the moldings 190, 230, 390, 590 openings in the molded bodies 190, 230, 390, 590 are applied, for example by means of a La ⁇ sers.
- the voltages applied in the mold body 190, 230, 390, 590 Lö ⁇ cher can be filled with an electrically conductive material, for example by electroplating processes.
- the electrically conductive material then provides an electrically conductive connection between the upper side and the lower side of the molded body 190, 230, 390, 590 and thus also forms a through contact.
- the remaining production steps are carried out as described.
- the invention has been further illustrated and described with reference to the preferredtientsbei ⁇ games. However, the invention is not limited to the disclosed examples. Rather, other variations may be deduced therefrom by those skilled in the art without departing from the scope of the invention.
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Abstract
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Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201380057054.5A CN104737314B (zh) | 2012-08-31 | 2013-08-28 | 光电子半导体构件 |
| JP2015529003A JP6029760B2 (ja) | 2012-08-31 | 2013-08-28 | オプトエレクトロニクス半導体モジュール |
| KR1020157007483A KR101642867B1 (ko) | 2012-08-31 | 2013-08-28 | 광전자 반도체 컴포넌트 |
| DE112013004223.1T DE112013004223B4 (de) | 2012-08-31 | 2013-08-28 | Optoelektronisches Halbleiterbauteil und Verfahren zum Herstellen eines optoelektronischen Halbleiterbauteils |
| US14/424,796 US9209368B2 (en) | 2012-08-31 | 2013-08-28 | Optoelectronic semi-conductor component |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012215524.4 | 2012-08-31 | ||
| DE102012215524.4A DE102012215524A1 (de) | 2012-08-31 | 2012-08-31 | Optoelektronisches Halbleiterbauteil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014033166A1 true WO2014033166A1 (de) | 2014-03-06 |
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ID=49035605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2013/067812 Ceased WO2014033166A1 (de) | 2012-08-31 | 2013-08-28 | Optoelektronisches halbleiterbauteil |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US9209368B2 (de) |
| JP (1) | JP6029760B2 (de) |
| KR (1) | KR101642867B1 (de) |
| CN (1) | CN104737314B (de) |
| DE (2) | DE102012215524A1 (de) |
| WO (1) | WO2014033166A1 (de) |
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| JP2017054942A (ja) * | 2015-09-10 | 2017-03-16 | 株式会社東芝 | 半導体発光装置 |
| JP2017535942A (ja) * | 2014-11-04 | 2017-11-30 | オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツングOsram Opto Semiconductors GmbH | オプトエレクトロニクス部品およびその製造方法 |
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| WO2014174400A1 (en) * | 2013-04-23 | 2014-10-30 | Koninklijke Philips N.V. | Side interconnect for light emitting device |
| DE102014102029A1 (de) * | 2014-02-18 | 2015-08-20 | Osram Opto Semiconductors Gmbh | Verfahren zur Herstellung von Halbleiterbauelementen und Halbleiterbauelement |
| DE102014113844B4 (de) | 2014-09-24 | 2021-08-05 | OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung | Verfahren zum Herstellen eines optoelektronischen Bauelements und optoelektronisches Bauelement |
| DE102014116134A1 (de) * | 2014-11-05 | 2016-05-12 | Osram Opto Semiconductors Gmbh | Verfahren zum Herstellen eines optoelektronischen Bauelements und optoelektronisches Bauelement |
| DE102014116778A1 (de) | 2014-11-17 | 2016-05-19 | Osram Opto Semiconductors Gmbh | Verfahren zur Herstellung eines Konversionselements, Konversionselement sowie optoelektronisches Bauelement mit einem solchen Konversionselement |
| DE102014117764A1 (de) | 2014-12-03 | 2016-06-09 | Osram Opto Semiconductors Gmbh | Strahlungsemittierendes optoelektronisches Halbleiterbauteil und Verfahren zu dessen Herstellung |
| DE102015101070A1 (de) | 2015-01-26 | 2016-07-28 | Osram Opto Semiconductors Gmbh | Optoelektronisches Halbleiterbauteil, optoelektronische Anordnung und Verfahren zur Herstellung eines optoelektronischen Halbleiterbauteils |
| DE102015107742A1 (de) | 2015-05-18 | 2016-11-24 | Osram Opto Semiconductors Gmbh | Verfahren zur Herstellung eines optoelektronischen Bauteils und optoelektronisches Bauteil |
| DE102015108056A1 (de) | 2015-05-21 | 2016-11-24 | Osram Opto Semiconductors Gmbh | Optoelektronisches Halbleiterbauteil, optoelektronische Anordnung und Verfahren zur Herstellung eines optoelektronischen Halbleiterbauteils |
| DE102015111558B4 (de) * | 2015-07-16 | 2023-02-02 | OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung | Optoelektronisches Bauelement und ein Verfahren zur Herstellung eines optoelektronischen Bauelements |
| DE102015113310B4 (de) * | 2015-08-12 | 2022-08-04 | OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung | Halbleiterchip |
| DE102016211968A1 (de) * | 2016-06-30 | 2018-01-04 | Schweizer Electronic Ag | Elektronisches Bauteil und Verfahren zum Herstellen eines elektronischen Bauteils |
| EP3591345B1 (de) * | 2018-07-02 | 2020-11-11 | Dr. Johannes Heidenhain GmbH | Verfahren zur herstellung einer lichtquelle für eine sensoreinheit einer positionsmesseinrichtung sowie eine positionsmesseinrichtung |
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| DE102007011123A1 (de) * | 2007-03-07 | 2008-09-11 | Osram Opto Semiconductors Gmbh | Licht emittierendes Modul und Herstellungsverfahren für ein Licht emittierendes Modul |
| DE102007022947B4 (de) | 2007-04-26 | 2022-05-05 | OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung | Optoelektronischer Halbleiterkörper und Verfahren zur Herstellung eines solchen |
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| DE102009036621B4 (de) * | 2009-08-07 | 2023-12-21 | OSRAM Opto Semiconductors Gesellschaft mit beschränkter Haftung | Optoelektronisches Halbleiterbauteil |
| FR2949278B1 (fr) * | 2009-08-18 | 2012-11-02 | Commissariat Energie Atomique | Procede de fabrication d'un dispositif d'emission de lumiere a base de diodes electroluminescentes |
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| JP2011181699A (ja) * | 2010-03-01 | 2011-09-15 | Seiko Instruments Inc | 発光デバイス |
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2012
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2013
- 2013-08-28 WO PCT/EP2013/067812 patent/WO2014033166A1/de not_active Ceased
- 2013-08-28 DE DE112013004223.1T patent/DE112013004223B4/de active Active
- 2013-08-28 KR KR1020157007483A patent/KR101642867B1/ko not_active Expired - Fee Related
- 2013-08-28 US US14/424,796 patent/US9209368B2/en active Active
- 2013-08-28 JP JP2015529003A patent/JP6029760B2/ja not_active Expired - Fee Related
- 2013-08-28 CN CN201380057054.5A patent/CN104737314B/zh active Active
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| US20050127485A1 (en) * | 2003-12-11 | 2005-06-16 | Shih-Chang Shei | Light-emitting diode package structure |
| EP1708283A1 (de) * | 2005-04-02 | 2006-10-04 | Lg Electronics Inc. | Lichtquellenvorrichtung und Verfahren zu ihrer Herstellung |
| DE102010034565A1 (de) * | 2010-08-17 | 2012-02-23 | Osram Opto Semiconductors Gmbh | Verfahren zur Herstellung zumindest eines optoelektronischen Halbleiterbauelements |
| DE102010049961A1 (de) * | 2010-10-28 | 2012-05-03 | Osram Opto Semiconductors Gmbh | Optoelektronisches Halbleiterbauelement mit einem Halbleiterchip, einem Trägersubstrat und einer Folie und ein Verfahren zu dessen Herstellung |
| DE102011011139A1 (de) * | 2011-02-14 | 2012-08-16 | Osram Opto Semiconductors Gmbh | Verfahren zur Herstellung zumindest eines optoelektronischen Halbleiterbauelements |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2017535942A (ja) * | 2014-11-04 | 2017-11-30 | オスラム オプト セミコンダクターズ ゲゼルシャフト ミット ベシュレンクテル ハフツングOsram Opto Semiconductors GmbH | オプトエレクトロニクス部品およびその製造方法 |
| JP2017054942A (ja) * | 2015-09-10 | 2017-03-16 | 株式会社東芝 | 半導体発光装置 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104737314B (zh) | 2017-05-17 |
| CN104737314A (zh) | 2015-06-24 |
| US9209368B2 (en) | 2015-12-08 |
| DE102012215524A1 (de) | 2014-03-06 |
| JP2015526909A (ja) | 2015-09-10 |
| JP6029760B2 (ja) | 2016-11-24 |
| DE112013004223B4 (de) | 2023-08-31 |
| KR101642867B1 (ko) | 2016-07-26 |
| US20150243857A1 (en) | 2015-08-27 |
| DE112013004223A5 (de) | 2015-09-24 |
| KR20150046272A (ko) | 2015-04-29 |
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