DE10245632B4 - Electromagnetic radiation emitting device and method for its production - Google Patents
Electromagnetic radiation emitting device and method for its production Download PDFInfo
- Publication number
- DE10245632B4 DE10245632B4 DE2002145632 DE10245632A DE10245632B4 DE 10245632 B4 DE10245632 B4 DE 10245632B4 DE 2002145632 DE2002145632 DE 2002145632 DE 10245632 A DE10245632 A DE 10245632A DE 10245632 B4 DE10245632 B4 DE 10245632B4
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- DE
- Germany
- Prior art keywords
- layer
- radiation
- mirror
- component according
- 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.)
- Expired - Fee Related
Links
- 230000005670 electromagnetic radiation Effects 0.000 title claims abstract description 13
- 238000000034 method Methods 0.000 title claims description 12
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 230000005855 radiation Effects 0.000 claims abstract description 68
- 239000004065 semiconductor Substances 0.000 claims description 14
- 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
- 239000000463 material Substances 0.000 claims description 5
- 238000005229 chemical vapour deposition Methods 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
- 238000002360 preparation method Methods 0.000 claims description 2
- 238000007740 vapor deposition Methods 0.000 claims description 2
- 230000001419 dependent effect Effects 0.000 claims 1
- 238000000407 epitaxy Methods 0.000 claims 1
- 238000000605 extraction Methods 0.000 abstract description 3
- 239000010410 layer Substances 0.000 description 61
- 238000011161 development Methods 0.000 description 2
- 230000018109 developmental process Effects 0.000 description 2
- 238000002488 metal-organic chemical vapour deposition Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000005468 ion implantation Methods 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
Elektromagnetische
Strahlung emittierendes Bauelement (1) mit einer Schichtfolge (2),
die eine eine elektromagnetische Strahlung erzeugende aktive Schicht
(4) aufweist und bei der
– die
aktive Schicht (4) zwischen einer ersten Schicht (3) eines ersten
Leitungstyps und einer zweiten Schicht (5) eines zweiten Leitungstyps
angeordnet ist, und
– der
zweiten Schicht (5) gesehen von der aktiven Schicht (4) eine Strahlungsauskoppelschicht
(6) nachgeordnet ist, wobei
– zwischen der aktiven Schicht
(4) und der Strahlungsauskoppelschicht (6) eine Spiegelschicht (7)
angeordnet ist,
– die
Strahlungsauskoppelschicht (6) dreidimensionale Strahlungsauskoppelstrukturen
(60) aufweist, die von der Spiegelschicht beabstandet sind,
– die Spiegelschicht
(7) eine Mehrzahl von Strahlungsfenstern (71) aufweist, durch die
in der aktiven Schicht (4) erzeugte elektromagnetische Strahlung
in die Strahlungsauskoppelschicht (6) gelangt,
– die Spiegelschicht
(7) zumindest einen Teil derjenigen elektromagnetischen Strahlung,
welche von den Strahlungsauskoppelstrukturen (60) in das Bauelement
(1) zurück
reflektiert wird, wieder zu den Strahlungsauskoppelstrukturen...Electromagnetic radiation-emitting component (1) having a layer sequence (2) which has an active layer (4) generating an electromagnetic radiation and in which
- The active layer (4) between a first layer (3) of a first conductivity type and a second layer (5) of a second conductivity type is arranged, and
- The second layer (5) seen from the active layer (4) is arranged downstream of a Strahlungsauskoppelschicht (6), wherein
- Between the active layer (4) and the radiation decoupling layer (6) a mirror layer (7) is arranged,
The radiation decoupling layer (6) has three-dimensional radiation decoupling structures (60) which are spaced apart from the mirror layer,
The mirror layer (7) has a plurality of radiation windows (71) through which electromagnetic radiation generated in the active layer (4) enters the radiation coupling-out layer (6),
- The mirror layer (7) at least a portion of that electromagnetic radiation, which is reflected by the radiation coupling-out structures (60) back into the device (1) back to the radiation extraction structures ...
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 The invention relates to an electromagnetic radiation emitting Component according to the preamble of claim 1 and to a method for its production.
In
der
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 The object of the invention is to provide a component its decoupling of the light generated in the component improves is. It is a method for producing such a device be specified.
Diese Aufgabe wird durch ein Bauelement mit den Merkmalen des Patentanspruches 1 gelöst. Ein Verfahren zu dessen Herstellung ist in Anspruch 12 angegeben. Bevorzugte Weiterbildungen des Bauelements und des Verfahrens sind in den Ansprüchen 2 bis 11 und 13 bis 19 angegeben.These The object is achieved by a component with the features of claim 1 solved. One Process for its preparation is specified in claim 12. preferred Further developments of the device and the method are in the claims 2 to 11 and 13 to 19 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 InxAlyGall-x-y 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 in particular for those which emit in the yellow spectral range. In the present case, these include, in particular, chips in which the epitaxially produced semiconductor layer, which as a rule has a layer sequence of different individual layers, contains at least one single layer comprising a material from the phosphide III-V compound semiconductor material system In x Al y Gal lxy with 0 ≤ x ≤ 1, 0 ≤ y ≤ 1 and x + y ≤ 1. In this case, the active layer may, for example, have 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 of a first conductivity type may be a single Layer or a multi-layer layer sequence be. 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.Under lateral in the present context is lateral 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.at the structure according to the invention of a device is generated in the radiation generating zones Radiation is emitted isotropically from there. The part of radiation that is sent to the front, happens to a large extent the partial mirror layer and is then either decoupled or reflected at a different angle from the coupling-out structure. Due to the partial mirror layer is at least a large part this reflected radiation simply or multiply in the radiation decoupling layer reflected, so the decoupling probability, especially with radiation in the yellow spectral range increases. In yellow light emitting semiconductor chip is compared with conventional structures with the structures according to the invention almost doubled in brightness.
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 consists for example of GaP or to an essential component of 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 auch bei organischen Leuchtdioden-Bauelementen eisetzen.The Invention is not limited to semiconductor chips, but let yourself also in organic light-emitting diode devices eisetzen.
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 DE10245632A1 (en) | 2004-04-15 |
DE10245632B4 true 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) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2010263085A (en) * | 2009-05-07 | 2010-11-18 | Toshiba Corp | Light-emitting element |
KR101081062B1 (en) | 2010-03-09 | 2011-11-07 | 엘지이노텍 주식회사 | Light emitting device, method for fabricating the light emitting device and light emitting device package |
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 |
Also Published As
Publication number | Publication date |
---|---|
DE10245632A1 (en) | 2004-04-15 |
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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 |