DE10245632A1 - Layered component with quantum well structure for yellow light emission, includes reflective layer which returns fraction of the light reflected from the exit structures, back to light exit structures, before it can return into active layer - Google Patents
Layered component with quantum well structure for yellow light emission, includes reflective layer which returns fraction of the light reflected from the exit structures, back to light exit structures, before it can return into active layer Download PDFInfo
- Publication number
- DE10245632A1 DE10245632A1 DE2002145632 DE10245632A DE10245632A1 DE 10245632 A1 DE10245632 A1 DE 10245632A1 DE 2002145632 DE2002145632 DE 2002145632 DE 10245632 A DE10245632 A DE 10245632A DE 10245632 A1 DE10245632 A1 DE 10245632A1
- Authority
- DE
- Germany
- Prior art keywords
- layer
- radiation
- mirror
- active layer
- window
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000005670 electromagnetic radiation Effects 0.000 claims abstract description 9
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- 230000005855 radiation Effects 0.000 claims description 58
- 239000004065 semiconductor Substances 0.000 claims description 15
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 7
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 7
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 7
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 7
- 238000005229 chemical vapour deposition Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 230000003595 spectral effect Effects 0.000 claims description 4
- 150000001875 compounds Chemical class 0.000 claims description 3
- 238000000151 deposition Methods 0.000 claims description 2
- 230000008021 deposition Effects 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 238000005240 physical vapour deposition Methods 0.000 claims description 2
- 238000007740 vapor deposition Methods 0.000 claims description 2
- 238000000407 epitaxy Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 59
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/02—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
- H01L33/14—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies with a carrier transport control structure, e.g. highly-doped semiconductor layer or current-blocking structure
- H01L33/145—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies with a carrier transport control structure, e.g. highly-doped semiconductor layer or current-blocking structure with a current-blocking structure
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/02—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
- H01L33/10—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies with a light reflecting structure, e.g. semiconductor Bragg reflector
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/02—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies
- H01L33/20—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor bodies with a particular shape, e.g. curved or truncated substrate
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Led Devices (AREA)
Abstract
Description
Die Erfindung bezieht sich auf ein elektromagnetische Strahlung emittierendes Bauelement nach dem Oberbegriff des Patentanspruches 1 und auf ein Verfahren zu dessen Herstellung.The invention relates to a Component emitting electromagnetic radiation according to the generic term of claim 1 and a method for its production.
Die Aufgabe der Erfindung besteht darin, ein Bauelement zu schaffen, dessen Auskopplung des im Bauelement erzeugten Lichtes verbessert ist. Es soll ein Verfahren zum Herstellen eines solchen Bauelements angegeben werden.The object of the invention is in creating a component, the coupling of which in the component generated light is improved. It's supposed to be a manufacturing process of such a component can be specified.
Diese Aufgabe wird durch ein Bauelement mit den Merkmalen des Patentanspruches 1 gelöst. Ein Verfahren zu dessen Herstellung ist in Anspruch 14 angegeben. Bevorzugte Weiterbildungen des Bauelements und des Verfahrens sind in den Ansprüchen 2 bis 13 und 15 bis 21 angegeben.This task is performed using a component solved the features of claim 1. A process for that Production is specified in claim 14. Preferred further training of the component and the method are in claims 2 to 13 and 15 to 21 indicated.
Die Erfindung eignet sich besonders bevorzugt für Bauelemente auf Basis von Phosphid-III-V-Verbindungshalbleitermaterial und hier insbesondere für solche, die im gelben Spektralbereich emittieren. Hierunter fallen vorliegend insbesondere solche Chips, bei denen die epitaktisch hergestellte Halbleiterschicht, die in der Regel eine Schichtfolge aus unterschiedlichen Einzelschichten aufweist, mindestens eine Einzelschicht enthält, die ein Material aus dem Phosphid-III-V-Verbindungshalbleitermaterial-System InxAlyGal1–x–yP mit 0 ≤ x ≤ 1, 0 ≤ y ≤ 1 und x + y ≤ 1 aufweist. Die aktive Schicht kann hierbei beispielsweise einen herkömmlichen pn-Übergang, eine Doppelheterostruktur, eine Einfach-Quantentopfstruktur (SQW-Struktur) oder eine Mehrfach-Quantentopfstruktur (MQW-Strukur) aufweisen.The invention is particularly preferably suitable for components based on phosphide III-V compound semiconductor material and here in particular for those which emit in the yellow spectral range. In the present case, this includes in particular those chips in which the epitaxially produced semiconductor layer, which generally has a layer sequence of different individual layers, contains at least one individual layer which contains a material from the phosphide-III-V compound semiconductor material system In x Al y Gal 1 –X – y P with 0 ≤ x ≤ 1, 0 ≤ y ≤ 1 and x + y ≤ 1. The active layer can have, for example, a conventional pn junction, a double heterostructure, a single quantum well structure (SQW structure) or a multiple quantum well structure (MQW structure).
Die erste Halbleiterschicht eines ersten Leitungstyps kann eine einzelne Schicht oder eine mehrere Schichten aufweisende Schichtenfolge sein. Das gleiche gilt für die zweite Halbleiterschicht eines zweiten Leitungstyps.The first semiconductor layer one The first line type can be a single layer or a multiple Layers have layers sequence. The same applies to the second Semiconductor layer of a second conductivity type.
Unter lateral ist im vorliegenden Zusammenhang lateral in Bezug auf die Schichtebenen der Halbleiterschichtfolge zu verstehen.Below is lateral in the present Relationship laterally with respect to the layer planes of the semiconductor layer sequence to understand.
Bei der erfindungsgemäßen Struktur eines Bauelements wird die in den Strahlungserzeugungszonen erzeugte Strahlung von dort isotrop ausgesandt. Der Teil der Strahlung, der nach Vorne ausgesandt wird, passiert zu einem großen Teil die partielle Spiegelschicht und wird dann entweder ausgekoppelt oder unter einem anderen Winkel von der Auskoppelstruktur reflektiert. Durch die partielle Spiegelschicht wird zumindest ein großer Teil dieser reflektierten Strahlung einfach oder mehrfach in der Strahlungsauskoppelschicht reflektiert, so dass die Auskoppelwahrscheinlichkeit, vor allem bei Strahlung im gelben Spektralbereich steigt. Bei gelbes Licht emittierenden Halbleiterchips wird gegenüber herkömmlichen Strukturen mit den erfindungsgemäßen Strukturen nahezu eine Verdoppelung der Helligkeit erreicht.In the structure according to the invention one component is the one generated in the radiation generation zones Radiation is emitted isotropically from there. The part of the radiation that sent out forward happens to a large extent the partial mirror layer and is then either coupled out or reflected from the decoupling structure at a different angle. At least a large part is due to the partial mirror layer this reflected radiation once or several times in the radiation coupling-out layer reflected, so the decoupling probability, especially with radiation in the yellow spectral range increases. With yellow light emitting semiconductor chips is compared to conventional structures with the structures according to the invention brightness almost doubled.
Besondere Vorteile, Ausführungsformen
und Weiterbildungen ergeben sich aus den im Folgenden in Verbindung
mit den
Gleiche und gleichwirkende Bestandteile
der verschiedenen Ausführungsbeispiele
sind jeweils mit den gleichen Bezugszei chen versehen. Zu den Ausführungsbeispielen
gemäß den
Bei dem Bauelement von
Die erste Schicht
Die Strahlungsauskoppelschicht besteht beispielsweise aus GaP oder zu einem wesentlichen Bestandteil aus GaP.The radiation decoupling layer exists for example made of GaP or an essential component GaP.
Zwischen der aktiven Schicht
Die aktive Schicht
Wie bei dem Ausführunsbeispiel von
Bei dem in
Vorzugsweise sind die Ränder der
Strahlungsfenster
Dies wird beispielsweise dadurch
erreicht, dass vor dem Aufbringen der Spiegelschicht
Bei einer anderen Vorgehensweise
wird vor dem Aufbringen der Spiegelschicht
Die Stromblendenschichten können alternativ
auch auf der von der aktiven Schicht
Bei einer anderen Alternative ist
die Spiegelschicht
Die Spiegelschicht
Bei einem Verfahren zum Herstellen
eines Halbleiterchips gemäß
Die Erfindung ist nicht auf Halbleiterchips eingeschränkt, sondern läßt sich überall dort vorteilhafte einsetzen, wo Licht ausgekoppelt werden muß und die oben dargelegten Probleme vorliegen. Denkbar ist beispielsweise der Einsatz auch bei organischen Leuchtdioden-Bauelementen.The invention is not limited to semiconductor chips, but rather can be anywhere use advantageous where light must be coupled and the Problems set out above exist. For example, it is conceivable the use also with organic light emitting diode components.
Claims (19)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002145632 DE10245632B4 (en) | 2002-09-30 | 2002-09-30 | Electromagnetic radiation emitting device and method for its production |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2002145632 DE10245632B4 (en) | 2002-09-30 | 2002-09-30 | Electromagnetic radiation emitting device and method for its production |
Publications (2)
Publication Number | Publication Date |
---|---|
DE10245632A1 true DE10245632A1 (en) | 2004-04-15 |
DE10245632B4 DE10245632B4 (en) | 2006-10-26 |
Family
ID=32010001
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE2002145632 Expired - Fee Related DE10245632B4 (en) | 2002-09-30 | 2002-09-30 | Electromagnetic radiation emitting device and method for its production |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE10245632B4 (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2249404A1 (en) * | 2009-05-07 | 2010-11-10 | Kabushiki Kaisha Toshiba | Light emitting device |
EP2365543A3 (en) * | 2010-03-09 | 2011-12-21 | LG Innotek Co., Ltd. | Light emitting diode, light emitting diode package, and lighting system |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19911717A1 (en) * | 1999-03-16 | 2000-09-28 | Osram Opto Semiconductors Gmbh | Monolithic electroluminescent device, especially an LED chip, has a row of emission zones individually associated with decoupling elements for decoupling radiation from the device |
WO2000065667A1 (en) * | 1999-04-28 | 2000-11-02 | Nova Crystals, Inc. | Led having embedded light reflectors to enhance led output efficiency |
-
2002
- 2002-09-30 DE DE2002145632 patent/DE10245632B4/en not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE19911717A1 (en) * | 1999-03-16 | 2000-09-28 | Osram Opto Semiconductors Gmbh | Monolithic electroluminescent device, especially an LED chip, has a row of emission zones individually associated with decoupling elements for decoupling radiation from the device |
WO2000065667A1 (en) * | 1999-04-28 | 2000-11-02 | Nova Crystals, Inc. | Led having embedded light reflectors to enhance led output efficiency |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2249404A1 (en) * | 2009-05-07 | 2010-11-10 | Kabushiki Kaisha Toshiba | Light emitting device |
US8502265B2 (en) | 2009-05-07 | 2013-08-06 | Kabushiki Kaisha Toshiba | Light emitting device having different multi-quantum well materials |
EP2365543A3 (en) * | 2010-03-09 | 2011-12-21 | LG Innotek Co., Ltd. | Light emitting diode, light emitting diode package, and lighting system |
US8319241B2 (en) | 2010-03-09 | 2012-11-27 | Lg Innotek Co., Ltd. | Light emitting device, light emitting device package, and lighting system |
Also Published As
Publication number | Publication date |
---|---|
DE10245632B4 (en) | 2006-10-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
OP8 | Request for examination as to paragraph 44 patent law | ||
8364 | No opposition during term of opposition | ||
R119 | Application deemed withdrawn, or ip right lapsed, due to non-payment of renewal fee |
Effective date: 20110401 |