WO2007025521A2 - Verfahren zur herstellung eines halbleiterbauelements mit einer planaren kontaktierung und halbleiterbauelement - Google Patents
Verfahren zur herstellung eines halbleiterbauelements mit einer planaren kontaktierung und halbleiterbauelement Download PDFInfo
- Publication number
- WO2007025521A2 WO2007025521A2 PCT/DE2006/001513 DE2006001513W WO2007025521A2 WO 2007025521 A2 WO2007025521 A2 WO 2007025521A2 DE 2006001513 W DE2006001513 W DE 2006001513W WO 2007025521 A2 WO2007025521 A2 WO 2007025521A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- insulating layer
- component
- glass coating
- substrate
- glass
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W76/00—Containers; Fillings or auxiliary members therefor; Seals
- H10W76/10—Containers or parts thereof
- H10W76/12—Containers or parts thereof characterised by their shape
- H10W76/13—Containers comprising a conductive base serving as an interconnection
- H10W76/138—Containers comprising a conductive base serving as an interconnection having another interconnection being formed by a cover plate parallel to the conductive base, e.g. sandwich type
-
- 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
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W20/00—Interconnections in chips, wafers or substrates
- H10W20/40—Interconnections external to wafers or substrates, e.g. back-end-of-line [BEOL] metallisations or vias connecting to gate electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
- H10W70/60—Insulating or insulated package substrates; Interposers; Redistribution layers
- H10W70/611—Insulating or insulated package substrates; Interposers; Redistribution layers for connecting multiple chips together
- H10W70/614—Insulating or insulated package substrates; Interposers; Redistribution layers for connecting multiple chips together the multiple chips being integrally enclosed
-
- 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
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
- H10W70/01—Manufacture or treatment
- H10W70/05—Manufacture or treatment of insulating or insulated package substrates, or of interposers, or of redistribution layers
- H10W70/093—Connecting or disconnecting other interconnections thereto or therefrom, e.g. connecting bond wires or bumps
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W70/00—Package substrates; Interposers; Redistribution layers [RDL]
- H10W70/60—Insulating or insulated package substrates; Interposers; Redistribution layers
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
- H10W90/00—Package configurations
Definitions
- the present invention relates to a method according to the preamble of claim 1 and to a semiconductor device produced by the method.
- planar connection technology which is also referred to as SiPLIT technology includes a uniformly laminated over the topography fie foil in a predetermined layer thickness, the components and forms an insulating layer.
- the basic concept of a flat design with planar connection technology allows versatile, application-specific design options by using an insulating film.
- it should have an insulating layer which is resistant to aging, largely uninfluenced by environmental influences and, in conjunction with light sources, enables a high light yield.
- a semiconductor component in particular a semiconductor structure having a surface structure or topography generated on a substrate by means of electronic components, an electronic component or a plurality of electronic components are applied to a substrate and an insulating layer is applied to the substrate by means of the at least one component generated topography applied.
- contacting openings in the insulating layer are produced at contacting locations of the at least one electronic component, the insulating layer and the contacting locations are metallized planarly in the contacting openings and the metallization is structured to produce electrical connections, the insulating layer having a glass coating.
- hermetic coverage of the substrate formed structure of one or more electronic devices, particularly a structure of one or more LEDs, may be created such that the structure is not exposed to environmental influences is.
- Another advantage is the high transparency, so that a high light output is possible in conjunction with light sources. Since a glass coating has high UV stability against ultraviolet radiation, the aging resistance of the structure is improved over conventional films.
- the glass coating allows a comparatively high thermal-mechanical stability.
- the coefficient of thermal expansion CTE (coefficient of thermal expansion) of the glass coating is preferably adapted to that of the at least one component and / or the substrate.
- the coefficient of thermal expansion of the glass coating preferably has a value between 5 * 10 -7 K "1 and including 30 * 10 -7 K '1.
- the glass coating is characterized by a high chemical-physical stability.
- the insulating layer may consist entirely of the glass coating.
- the Glass coating borosilicate glass on.
- the glass coating can be made entirely of borosilicate glass.
- the glass can be alkaline. It can also be made up of several glass layers.
- a polymer coating is first applied to the components and / or the substrate and then the insulating layer, wherein a thermo-mechanical decoupling of the insulating layer is provided by the device and substrate surfaces.
- the polymer coating is preferably highly elastic so that thermo-mechanical stresses are compensated.
- differences in the coefficients of expansion (CTE) of the glass coating and component and substrate surfaces can be compensated by means of the polymer coating. This is particularly advantageous for semiconductor devices in which a strong heating of the device occurs during operation, such as in high-power LEDS.
- the polymer coating in this case reduces the risk of breakage of the glass layer due to mechanical stresses that may occur due to high temperature differences between the quiescent state and the operating state of the device.
- the insulating layer can have juxtaposed glass coatings and polymer layers.
- the insulating layer can be effectively adapted to the respective functions of the components.
- a glass coating is advantageous for LED chips, in particular for LED chips, in which at least part of the emitted radiation has wavelengths in the ultraviolet spectral range, since a glass coating has improved radiation stability compared to polymer layers.
- one or more on the substrate disposed LED chips are provided with an insulating layer of glass, while the substrate and / or one or more further arranged on the substrate components are provided with an insulating layer of a polymer.
- the glass coating is arranged only in the electrically active region of a component.
- an electrically active region for example, an LED chip
- the light-emitting region is assumed here.
- the glass coating can be applied to the surface and the side edges of an LED chip.
- the glass coating hermetically encapsulates at least one electrical component, in particular an LED chip.
- the glass coating has a thickness in the range of 5 to 500 microns.
- the glass coating is applied by means of physical vapor deposition (PVD) and / or plasma ion assisted deposition (PIAD), in particular electron-beam PVD-PIAD.
- PVD physical vapor deposition
- PIAD plasma ion assisted deposition
- the glass coating is structured by means of a lift-off method.
- contact openings are produced by means of laser processing, chemical etching, dry etching or sandblasting.
- the metallization is carried out by means of a seed layer (seed layer), for example of TiW and / or TiCu.
- seed layer for example of TiW and / or TiCu.
- a thin metallic layer is applied to the insulating layer by means of sputtering.
- CVD, PVD or electrolytic methods can be used.
- structuring of the metallization is carried out by means of a photographic process.
- FIG. 1 shows a schematic representation of a cross section through a first exemplary embodiment of a semiconductor component according to the invention
- Figure 2 is a schematic representation of a cross section through a second embodiment of a semiconductor device according to the invention.
- Figure 3 is a schematic representation of a cross section through a third embodiment of a semiconductor device according to the invention.
- FIG. 1 shows a semiconductor component in which an LED chip 2 is arranged on a substrate 1.
- the substrate 1 can For example, a wafer, a printed circuit board (PCB) and / or a flexible material.
- PCB printed circuit board
- an insulating layer 3 made of a glass, for example a thin borosilicate glass layer, is applied. This serves as a hermetic waste 'cover for the LED chip 2 and the substrate 1.
- the glass coating 3 so protects the LED chip 2 and the substrate 1 is advantageous from environmental influences such as especially moisture, dirt, or UV radiation.
- the insulating layer 3 further acts as electrical insulation between portions of the LED chip 2, in particular the side edges of the LED chip 2, and electrical connections 4, which serve for the planar electrical contacting of the LED chip.
- a planar contacting means a wireless contacting by means of a structured metallization layer, which forms the electrical connections 4.
- no bonding wire is used for contacting the LED chip 2.
- the insulating layer 3 in particular prevents a short circuit of the LED chip 2, which would otherwise occur in the case of a direct application of the metallization 4 on the side edges of the LED chip 2.
- the thin glass coating 3 is preferably produced by a PVD or PIAD method.
- the insulating layer 3 can be structured by a lift-off technique.
- openings 5 for producing planar contact plating are preferably created by laser processing, chemical etching, dry etching and / or sandblasting. Other methods are also conceivable.
- the formation of the electrical connections 4 on the insulating layer 3 preferably takes place by the application and structuring of a metallization layer.
- a thin seed layer for example of TiCu or TiW, is preferably applied to the insulating layer.
- the structuring of the metallization can be done for example by means of a photolithographic process.
- a radiation exit surface 11 of the LED chip is recessed by the metallization 4.
- the glass coating 3 is advantageously highly transparent for the radiation emitted by the LED chip 2.
- a first terminal contact 8 of the LED chip 2 is connected to a rear-side contact 6 on the side of the substrate 1 facing away from the LED chip 2.
- a second terminal contact 9 of the LED chip 2 is connected to a front side contact 7 on the component 2 facing the front side of the substrate 1.
- other variants of the contacting are conceivable.
- the encapsulation of the LED chip 2 with borosilicate glass as a hermetic cover and as a dielectric is particularly suitable for a planar connection and construction technique, as described for example in the patent application WO 03/030247 A2.
- the insulating layer has subregions of a glass coating 3 and a polymer layer 10 arranged side by side. The surface and the side flanks of the LED chip 2 are provided with the glass coating 3, while portions of the substrate 1 are insulated from the electrical connections 4 by a polymer layer 10.
- the second embodiment corresponds to the first embodiment, in particular with respect to the advantageous embodiments described in connection with FIG.
- a polymer layer 10 has been applied to the surface structure applied to the substrate, which contains the LED chip 2.
- the polymer coating is preferably highly elastic to compensate for thermo-mechanical stresses.
- the polymer layer 10 is preferably applied to the substrate and the LED chip 2 by means of a PIAD method. Due to the comparatively low process temperature at the component to be coated, the PIAD method is advantageous if, prior to application of the glass coating 3, a polymer layer 10 is applied which could degrade at high temperatures.
- the third embodiment corresponds to the first embodiment, in particular with respect to the advantageous embodiments described in connection with FIG. 1.
Landscapes
- Led Device Packages (AREA)
- Electroplating Methods And Accessories (AREA)
- Internal Circuitry In Semiconductor Integrated Circuit Devices (AREA)
Abstract
Description
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006800318234A CN101253623B (zh) | 2005-08-30 | 2006-08-30 | 用于制造具有平面接触的半导体器件的方法以及半导体器件 |
| EP06791327A EP1920462A2 (de) | 2005-08-30 | 2006-08-30 | Verfahren zur herstellung eines halbleiterbauelements mit einer planaren kontaktierung und halbleiterbauelement |
| KR1020087003687A KR101295606B1 (ko) | 2005-08-30 | 2006-08-30 | 평면 접점을 포함하는 반도체 소자의 제조 방법 및 반도체소자 |
| US11/991,197 US7859005B2 (en) | 2005-08-30 | 2006-08-30 | Method for the production of a semiconductor component comprising a planar contact, and semiconductor component |
| JP2008528330A JP5215853B2 (ja) | 2005-08-30 | 2006-08-30 | プレーナ形のコンタクト形成部を備えた半導体素子の作製方法および半導体素子 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102005041099.5 | 2005-08-30 | ||
| DE102005041099A DE102005041099A1 (de) | 2005-08-30 | 2005-08-30 | LED-Chip mit Glasbeschichtung und planarer Aufbau- und Verbindungstechnik |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO2007025521A2 true WO2007025521A2 (de) | 2007-03-08 |
| WO2007025521A3 WO2007025521A3 (de) | 2007-05-03 |
Family
ID=37692604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/DE2006/001513 Ceased WO2007025521A2 (de) | 2005-08-30 | 2006-08-30 | Verfahren zur herstellung eines halbleiterbauelements mit einer planaren kontaktierung und halbleiterbauelement |
Country Status (8)
| Country | Link |
|---|---|
| US (1) | US7859005B2 (de) |
| EP (1) | EP1920462A2 (de) |
| JP (1) | JP5215853B2 (de) |
| KR (1) | KR101295606B1 (de) |
| CN (1) | CN101253623B (de) |
| DE (1) | DE102005041099A1 (de) |
| TW (1) | TWI313075B (de) |
| WO (1) | WO2007025521A2 (de) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007033288A1 (de) * | 2007-07-17 | 2009-01-22 | Siemens Ag | Elektronisches Bauelement und Vorrichtung mit hoher Isolationsfestigkeit sowie Verfahren zu deren Herstellung |
| WO2009079978A1 (de) * | 2007-12-20 | 2009-07-02 | Osram Opto Semiconductors Gmbh | Optoelektronisches bauelement |
| JP2011507198A (ja) * | 2007-12-21 | 2011-03-03 | 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 | オプトエレクトロニクス部品およびその製造方法 |
| WO2011026456A1 (de) * | 2009-09-03 | 2011-03-10 | Osram Opto Semiconductors Gmbh | Optoelektronisches modul aufweisend zumindest einen ersten halbleiterkörper mit einer strahlungsaustrittsseite und einer isolationsschicht und verfahren zu dessen herstellung |
| WO2011032853A1 (de) * | 2009-09-18 | 2011-03-24 | Osram Opto Semiconductors Gmbh | Optoelektronisches modul |
| DE102008048423B4 (de) * | 2007-09-24 | 2015-05-28 | Infineon Technologies Ag | Verfahren zum Herstellen eines Integrierten Schaltungsbauelements |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102008015551A1 (de) * | 2008-03-25 | 2009-10-01 | Osram Opto Semiconductors Gmbh | Optoelektronisches Bauelement mit planarer Kontaktierung und Verfahren zu dessen Herstellung |
| CN102456803A (zh) * | 2010-10-20 | 2012-05-16 | 展晶科技(深圳)有限公司 | 发光二极管封装结构 |
| US9437756B2 (en) | 2013-09-27 | 2016-09-06 | Sunpower Corporation | Metallization of solar cells using metal foils |
| KR101856107B1 (ko) * | 2015-04-24 | 2018-05-09 | 주식회사 아모센스 | 세라믹 기판 제조 방법 및 이 제조방법으로 제조된 세라믹 기판 |
| KR101856106B1 (ko) * | 2015-04-24 | 2018-05-09 | 주식회사 아모센스 | 세라믹 기판 제조 방법 및 이 제조방법으로 제조된 세라믹 기판 |
| CN107889559B (zh) | 2015-04-24 | 2020-04-28 | 阿莫善斯有限公司 | 陶瓷基板的制造方法及由其所制造的陶瓷基板 |
| KR101856109B1 (ko) * | 2015-04-24 | 2018-05-09 | 주식회사 아모센스 | 세라믹 기판 제조 방법 및 이 제조방법으로 제조된 세라믹 기판 |
| KR101856108B1 (ko) * | 2015-04-24 | 2018-05-09 | 주식회사 아모센스 | 세라믹 기판 제조 방법 및 이 제조방법으로 제조된 세라믹 기판 |
| IL303148A (en) * | 2016-02-24 | 2023-07-01 | Magic Leap Inc | Low profile connection for light emitter |
| KR102563421B1 (ko) * | 2016-07-19 | 2023-08-07 | 주식회사 아모센스 | 세라믹 기판 제조 방법 |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4017340A (en) | 1975-08-04 | 1977-04-12 | General Electric Company | Semiconductor element having a polymeric protective coating and glass coating overlay |
| JPH0437067A (ja) * | 1990-05-31 | 1992-02-07 | Canon Inc | 半導体素子用電極及び該電極を有する半導体装置及びその製造方法 |
| JP3246929B2 (ja) * | 1991-11-11 | 2002-01-15 | 電気化学工業株式会社 | マトリックス回路基板及び表示板 |
| JPH07131075A (ja) * | 1993-10-28 | 1995-05-19 | Kyocera Corp | 画像装置 |
| JP3009091B2 (ja) * | 1994-11-15 | 2000-02-14 | 日亜化学工業株式会社 | 青色発光ダイオード |
| JP3641122B2 (ja) * | 1997-12-26 | 2005-04-20 | ローム株式会社 | 半導体発光素子、半導体発光モジュール、およびこれらの製造方法 |
| US6319757B1 (en) * | 1998-07-08 | 2001-11-20 | Caldus Semiconductor, Inc. | Adhesion and/or encapsulation of silicon carbide-based semiconductor devices on ceramic substrates |
| JP4724924B2 (ja) * | 2001-02-08 | 2011-07-13 | ソニー株式会社 | 表示装置の製造方法 |
| CN1575511A (zh) * | 2001-09-28 | 2005-02-02 | 西门子公司 | 用于接触基片的电接触面的方法和由具有电接触面的基片形成的装置 |
| US20030085416A1 (en) * | 2001-11-08 | 2003-05-08 | Tyco Electronics Corporation | Monolithically integrated pin diode and schottky diode circuit and method of fabricating same |
| DE10351397A1 (de) | 2003-10-31 | 2005-06-16 | Osram Opto Semiconductors Gmbh | Lumineszenzdiodenchip |
| DE10353679A1 (de) * | 2003-11-17 | 2005-06-02 | Siemens Ag | Kostengünstige, miniaturisierte Aufbau- und Verbindungstechnik für LEDs und andere optoelektronische Module |
| US6881980B1 (en) * | 2004-06-17 | 2005-04-19 | Chunghwa Picture Tubes, Ltd. | Package structure of light emitting diode |
-
2005
- 2005-08-30 DE DE102005041099A patent/DE102005041099A1/de not_active Ceased
-
2006
- 2006-08-30 EP EP06791327A patent/EP1920462A2/de not_active Withdrawn
- 2006-08-30 US US11/991,197 patent/US7859005B2/en not_active Expired - Fee Related
- 2006-08-30 JP JP2008528330A patent/JP5215853B2/ja not_active Expired - Fee Related
- 2006-08-30 TW TW095131944A patent/TWI313075B/zh not_active IP Right Cessation
- 2006-08-30 KR KR1020087003687A patent/KR101295606B1/ko not_active Expired - Fee Related
- 2006-08-30 WO PCT/DE2006/001513 patent/WO2007025521A2/de not_active Ceased
- 2006-08-30 CN CN2006800318234A patent/CN101253623B/zh not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007033288A1 (de) * | 2007-07-17 | 2009-01-22 | Siemens Ag | Elektronisches Bauelement und Vorrichtung mit hoher Isolationsfestigkeit sowie Verfahren zu deren Herstellung |
| DE102008048423B4 (de) * | 2007-09-24 | 2015-05-28 | Infineon Technologies Ag | Verfahren zum Herstellen eines Integrierten Schaltungsbauelements |
| WO2009079978A1 (de) * | 2007-12-20 | 2009-07-02 | Osram Opto Semiconductors Gmbh | Optoelektronisches bauelement |
| JP2011507285A (ja) * | 2007-12-20 | 2011-03-03 | 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 | オプトエレクトロニクス素子 |
| US8476667B2 (en) | 2007-12-20 | 2013-07-02 | Osram Opto Semiconductors Gmbh | Optoelectronic component |
| JP2011507198A (ja) * | 2007-12-21 | 2011-03-03 | 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 | オプトエレクトロニクス部品およびその製造方法 |
| US8513682B2 (en) | 2007-12-21 | 2013-08-20 | Osram Opto Semiconductors Gmbh | Optoelectronic component and production method for an optoelectronic component |
| WO2011026456A1 (de) * | 2009-09-03 | 2011-03-10 | Osram Opto Semiconductors Gmbh | Optoelektronisches modul aufweisend zumindest einen ersten halbleiterkörper mit einer strahlungsaustrittsseite und einer isolationsschicht und verfahren zu dessen herstellung |
| US8847247B2 (en) | 2009-09-03 | 2014-09-30 | Osram Opto Semiconductors Gmbh | Optoelectronic module comprising at least one first semiconductor body having a radiation outlet side and an insulation layer and method for the production thereof |
| WO2011032853A1 (de) * | 2009-09-18 | 2011-03-24 | Osram Opto Semiconductors Gmbh | Optoelektronisches modul |
Also Published As
| Publication number | Publication date |
|---|---|
| US20090278157A1 (en) | 2009-11-12 |
| US7859005B2 (en) | 2010-12-28 |
| JP2009506558A (ja) | 2009-02-12 |
| KR101295606B1 (ko) | 2013-08-12 |
| TW200715621A (en) | 2007-04-16 |
| TWI313075B (en) | 2009-08-01 |
| DE102005041099A1 (de) | 2007-03-29 |
| EP1920462A2 (de) | 2008-05-14 |
| WO2007025521A3 (de) | 2007-05-03 |
| CN101253623B (zh) | 2010-05-19 |
| CN101253623A (zh) | 2008-08-27 |
| JP5215853B2 (ja) | 2013-06-19 |
| KR20080039904A (ko) | 2008-05-07 |
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