WO2005029600A1 - チップ型led - Google Patents
チップ型led Download PDFInfo
- Publication number
- WO2005029600A1 WO2005029600A1 PCT/JP2004/007932 JP2004007932W WO2005029600A1 WO 2005029600 A1 WO2005029600 A1 WO 2005029600A1 JP 2004007932 W JP2004007932 W JP 2004007932W WO 2005029600 A1 WO2005029600 A1 WO 2005029600A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- emitting diode
- diode chip
- light emitting
- light
- chip
- Prior art date
Links
- 239000000758 substrate Substances 0.000 claims abstract description 28
- 239000004065 semiconductor Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon 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
- H01L33/48—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 body packages
- H01L33/483—Containers
- H01L33/486—Containers adapted for surface mounting
-
- 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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L2224/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
- H01L2224/321—Disposition
- H01L2224/32151—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/32221—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/32225—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48225—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation
- H01L2224/48227—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being non-metallic, e.g. insulating substrate with or without metallisation connecting the wire to a bond pad of the item
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/484—Connecting portions
- H01L2224/4847—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a wedge bond
- H01L2224/48472—Connecting portions the connecting portion on the bonding area of the semiconductor or solid-state body being a wedge bond the other connecting portion not on the bonding area also being a wedge bond, i.e. wedge-to-wedge
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73265—Layer and wire connectors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L24/00—Arrangements for connecting or disconnecting semiconductor or solid-state bodies; Methods or apparatus related thereto
- H01L24/73—Means for bonding being of different types provided for in two or more of groups H01L24/10, H01L24/18, H01L24/26, H01L24/34, H01L24/42, H01L24/50, H01L24/63, H01L24/71
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2924/00—Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
- H01L2924/10—Details of semiconductor or other solid state devices to be connected
- H01L2924/1015—Shape
- H01L2924/10155—Shape being other than a cuboid
- H01L2924/10158—Shape being other than a cuboid at the passive surface
Definitions
- the present invention relates to a chip-type LED having a structure in which a light-emitting diode chip as a light source is hermetically sealed with a transparent package.
- FIG. 4 is a perspective view showing a conventional chip-type LED.
- This chip-type LED 1 has a pair of terminal electrodes 3 and 4 formed on an upper surface of a chip-type insulating substrate 2.
- the light emitting diode chip 5 is placed with its anode electrode 5 b facing upward, and its force source electrode 5 a facing downward so as to be electrically connected to the one terminal electrode 3.
- the anode electrode 5b and the other terminal electrode 4 on the upper surface are electrically connected by wire bonding or the like using a thin metal wire (not shown), and the light emitting diode chip 5 is mounted on the upper surface of the insulating substrate 2. (See Patent Document 1).
- Patent Document 1 JP-A-10-50734
- the chip-type LED 1 having the above-described configuration, most of the light emitted from the light-emitting diode chip 5 is emitted laterally from the side surface of the light-emitting diode chip 5, but some of the light is emitted from the upper surface. Being emitted upward from the anode electrode 5b Therefore, the amount of light emitted from the side surface of the light emitting diode chip 5 is reduced by an amount corresponding to a part of the light emitted upward from the anode electrode 5b on the upper surface.
- each key switch B is weakened by a part of the light emitted from the light emitting diode chip 5 upwardly emitted from the anode electrode 5b on the upper surface.
- An object of the present invention is to solve this problem and to make it possible to configure a thin type when a chip-type LED is used as a backlight light source.
- claim 1 of the present invention provides an insulating substrate, a light emitting diode chip mounted on the upper surface thereof, and a light emitting diode chip provided on the upper surface of the insulating substrate so as to hermetically seal the light emitting diode chip.
- the light emitting diode chip is mounted on the upper surface of the insulating substrate with the anode electrode of the light emitting diode chip facing downward and the force source electrode facing upward.
- the light emitting layer in the light emitting diode chip is located in a portion of the light emitting diode chip close to the power source electrode.
- a side surface of the light emitting diode chip is inclined inward from the force source electrode side toward the anode electrode side.
- Claim 3 of the present invention is characterized in that, in Claim 1 or 2, at least a portion of the upper surface of the insulating substrate around the light emitting diode chip is colored white.
- an opaque substrate exists in a portion of the light emitting diode chip on the side of the force source electrode.
- the light emitting diode chip by mounting the light emitting diode chip on the upper surface of the insulating substrate with the anode electrode of the light emitting diode chip facing downward and the force source electrode facing upward, the light emitting layer of the light emitting diode chip emits light. It is possible to prevent the light from being emitted upward from the light source electrode side by the substrate of the light emitting diode chip.
- the light emitted laterally from the side surface of the light emitting diode chip can be strengthened by the amount that the light can be prevented from being emitted upward from the upper surface of the light emitting diode chip.
- the light emitting layer in the light emitting diode chip is made to have a relatively large area, and the light emitted in this light emitting layer is inclined inward. Since light can be emitted from the side surface with little attenuation, the amount of light emitted laterally can be greatly increased.
- FIG. 1 is a perspective view showing a chip-type LED according to an embodiment of the present invention.
- FIG. 2 is a sectional view taken along the line II-II of FIG. 1.
- FIG. 3 is a cross-sectional view when the chip-type LED is used as a backlight source for a key switch.
- FIG. 4 is a perspective view showing a conventional chip-type LED.
- FIG. 5 is a perspective view showing an example of use of a conventional chip-type LED.
- reference numeral 11 indicates a chip-type LED according to an embodiment of the present invention.
- the chip-type LED 11 includes a chip-type insulating substrate 12 having a pair of terminal electrodes 13 and 14 formed on the upper surface, a light-emitting diode chip 15 mounted on the upper surface of the insulating substrate 12, and the insulating substrate 12. And a package 16 made of a transparent body provided on the upper surface of the light emitting diode chip so as to seal the light emitting diode chip 15.
- the light emitting diode chip 15 has an n-type semiconductor layer 15c, a light-emitting layer 15d, a p-type semiconductor layer 15e, and an anode electrode 15f formed on a substrate 15b made of silicon or the like having a force electrode 15a on the back surface. Things are configured. Further, the light emitting diode chip 15 is configured such that the n-type semiconductor layer 15c is made thinner while the p-type semiconductor layer 15e is made thicker, so that the light emitting layer 15d is located at a position close to the force source electrode 15a. It is configured as follows.
- the light emitting diode chip 15 has a dimension D1 on the side of the force electrode 15a at one end thereof and a dimension D2 on the side of the anode electrode 15f at the other end which is larger than that of the other end. 15 'is configured to be inclined inward from the cathode electrode 15a at one end thereof toward the anode electrode 15f at the other end.
- the light emitting diode chip 15 is connected to the insulating substrate 12 such that the force source electrode 15a of the light emitting diode chip 15 faces upward, the anode electrode 15f faces downward, and the anode electrode 15f While mounted so as to be electrically die-bonded to the terminal electrode 13, a space between the force electrode 15 a on the upper surface of the light-emitting diode chip 15 and the other terminal electrode 14 is formed by wire bonding using a thin metal wire 17. And make an electrical connection.
- the chip LED 11 can be made thin. it can.
- the chip-type LED 11 that emits light horizontally can be configured to be thin, and the chip-type LED having this configuration can be used in a portable manner as in the case of FIG.
- the chip-type LED having this configuration can be used in a portable manner as in the case of FIG.
- the light-emitting layer 15 d of the light-emitting diode chip 15 is located at a portion of the light-emitting diode chip 15 that is close to the power source electrode 15 a serving as the upper surface, while the side surface 15 d of the light-emitting diode chip 15
- the light-emitting layer 15d emits light in the light-emitting layer 15d after the light-emitting layer 15d has a relatively large area because the light-emitting diode chip 15 is inclined inward from the cathode electrode 15a toward the anode electrode 15f. Since the light can be emitted in a state in which the light on the side surface 15 'inclined inward is less attenuated, the amount of light emitted laterally can be increased.
- the light reaching the upper surface of the insulating substrate 12 can be reflected laterally by the white color arrangement film 18, so that the amount of light emitted in the lateral direction can be further increased.
- the upper surface of the insulating substrate 12 may be configured to be white.
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Led Device Packages (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020047018437A KR101202266B1 (ko) | 2003-09-24 | 2004-06-07 | 칩형 led |
EP04745642A EP1672703A1 (en) | 2003-09-24 | 2004-06-07 | Chip type led |
US10/572,861 US7323704B2 (en) | 2003-09-24 | 2004-06-07 | Chip type led |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-331980 | 2003-09-24 | ||
JP2003331980A JP4166136B2 (ja) | 2003-09-24 | 2003-09-24 | チップ型led |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2005029600A1 true WO2005029600A1 (ja) | 2005-03-31 |
Family
ID=34373058
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/007932 WO2005029600A1 (ja) | 2003-09-24 | 2004-06-07 | チップ型led |
Country Status (6)
Country | Link |
---|---|
US (1) | US7323704B2 (ja) |
EP (1) | EP1672703A1 (ja) |
JP (1) | JP4166136B2 (ja) |
KR (1) | KR101202266B1 (ja) |
CN (1) | CN100391015C (ja) |
WO (1) | WO2005029600A1 (ja) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4166136B2 (ja) * | 2003-09-24 | 2008-10-15 | ローム株式会社 | チップ型led |
TW201448263A (zh) | 2006-12-11 | 2014-12-16 | Univ California | 透明發光二極體 |
JP5340583B2 (ja) * | 2007-11-26 | 2013-11-13 | スタンレー電気株式会社 | 半導体発光装置 |
KR101646263B1 (ko) * | 2010-03-31 | 2016-08-08 | 엘지이노텍 주식회사 | 반사층이 포함된 패시브 매트릭스 oled 모듈 및 그 제조 방법 |
WO2012050110A1 (ja) | 2010-10-12 | 2012-04-19 | ローム株式会社 | Ledモジュール |
CN106206902B (zh) * | 2016-09-30 | 2018-11-06 | 映瑞光电科技(上海)有限公司 | 发光二极管芯片 |
US11592166B2 (en) | 2020-05-12 | 2023-02-28 | Feit Electric Company, Inc. | Light emitting device having improved illumination and manufacturing flexibility |
US11876042B2 (en) | 2020-08-03 | 2024-01-16 | Feit Electric Company, Inc. | Omnidirectional flexible light emitting device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6050978A (ja) * | 1983-08-30 | 1985-03-22 | Nec Corp | 半導体装置 |
JPH01309201A (ja) * | 1988-06-06 | 1989-12-13 | Mitsubishi Cable Ind Ltd | 発光ダイオード照明具 |
JPH05327012A (ja) * | 1992-05-15 | 1993-12-10 | Sanyo Electric Co Ltd | 炭化ケイ素発光ダイオード |
JPH11354837A (ja) * | 1998-06-05 | 1999-12-24 | Mitsubishi Chemical Corp | 発光ダイオードおよびその製造方法 |
JP2000188358A (ja) * | 1998-12-22 | 2000-07-04 | Rohm Co Ltd | 半導体装置 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4935665A (en) * | 1987-12-24 | 1990-06-19 | Mitsubishi Cable Industries Ltd. | Light emitting diode lamp |
JPH0832110A (ja) * | 1994-07-19 | 1996-02-02 | Oki Electric Ind Co Ltd | 端面発光型led、端面発光型発光素子の製造方法、端面発光型発光素子の発光特性測定方法 |
US5705834A (en) * | 1996-04-23 | 1998-01-06 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Increased efficiency LED |
JPH1050734A (ja) | 1996-07-31 | 1998-02-20 | Shichizun Denshi:Kk | チップ型半導体 |
RU2142661C1 (ru) * | 1998-12-29 | 1999-12-10 | Швейкин Василий Иванович | Инжекционный некогерентный излучатель |
DE10006738C2 (de) * | 2000-02-15 | 2002-01-17 | Osram Opto Semiconductors Gmbh | Lichtemittierendes Bauelement mit verbesserter Lichtauskopplung und Verfahren zu seiner Herstellung |
JP2003023183A (ja) * | 2001-07-06 | 2003-01-24 | Stanley Electric Co Ltd | 面実装型ledランプ |
JP4166136B2 (ja) * | 2003-09-24 | 2008-10-15 | ローム株式会社 | チップ型led |
-
2003
- 2003-09-24 JP JP2003331980A patent/JP4166136B2/ja not_active Expired - Lifetime
-
2004
- 2004-06-07 US US10/572,861 patent/US7323704B2/en not_active Expired - Fee Related
- 2004-06-07 WO PCT/JP2004/007932 patent/WO2005029600A1/ja active Application Filing
- 2004-06-07 CN CNB200480000363XA patent/CN100391015C/zh not_active Expired - Fee Related
- 2004-06-07 EP EP04745642A patent/EP1672703A1/en not_active Withdrawn
- 2004-06-07 KR KR1020047018437A patent/KR101202266B1/ko active IP Right Grant
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS6050978A (ja) * | 1983-08-30 | 1985-03-22 | Nec Corp | 半導体装置 |
JPH01309201A (ja) * | 1988-06-06 | 1989-12-13 | Mitsubishi Cable Ind Ltd | 発光ダイオード照明具 |
JPH05327012A (ja) * | 1992-05-15 | 1993-12-10 | Sanyo Electric Co Ltd | 炭化ケイ素発光ダイオード |
JPH11354837A (ja) * | 1998-06-05 | 1999-12-24 | Mitsubishi Chemical Corp | 発光ダイオードおよびその製造方法 |
JP2000188358A (ja) * | 1998-12-22 | 2000-07-04 | Rohm Co Ltd | 半導体装置 |
Also Published As
Publication number | Publication date |
---|---|
CN1698214A (zh) | 2005-11-16 |
US20070040253A1 (en) | 2007-02-22 |
KR101202266B1 (ko) | 2012-11-16 |
US7323704B2 (en) | 2008-01-29 |
JP4166136B2 (ja) | 2008-10-15 |
CN100391015C (zh) | 2008-05-28 |
JP2005101203A (ja) | 2005-04-14 |
EP1672703A1 (en) | 2006-06-21 |
KR20060059336A (ko) | 2006-06-01 |
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