JP5777948B2 - 発光ダイオード - Google Patents
発光ダイオード Download PDFInfo
- Publication number
- JP5777948B2 JP5777948B2 JP2011138196A JP2011138196A JP5777948B2 JP 5777948 B2 JP5777948 B2 JP 5777948B2 JP 2011138196 A JP2011138196 A JP 2011138196A JP 2011138196 A JP2011138196 A JP 2011138196A JP 5777948 B2 JP5777948 B2 JP 5777948B2
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- JP
- Japan
- Prior art keywords
- light emitting
- semiconductor layer
- substrate
- type semiconductor
- cells
- 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.)
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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
- H10H20/857—Interconnections, e.g. lead-frames, bond wires or solder balls
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/40—Details of LED load circuits
- H05B45/42—Antiparallel configurations
-
- 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
- H10H20/81—Bodies
- H10H20/813—Bodies having a plurality of light-emitting regions, e.g. multi-junction LEDs or light-emitting devices having photoluminescent regions within the bodies
-
- 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
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B45/00—Circuit arrangements for operating light-emitting diodes [LED]
- H05B45/30—Driver circuits
- H05B45/36—Circuits for reducing or suppressing harmonics, ripples or electromagnetic interferences [EMI]
-
- 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
- H10W72/00—Interconnections or connectors in packages
- H10W72/071—Connecting or disconnecting
- H10W72/075—Connecting or disconnecting of bond wires
- H10W72/07551—Connecting or disconnecting of bond wires characterised by changes in properties of the bond wires during the connecting
- H10W72/07554—Connecting or disconnecting of bond wires characterised by changes in properties of the bond wires during the connecting changes in dispositions
-
- 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
- H10W72/00—Interconnections or connectors in packages
- H10W72/50—Bond wires
- H10W72/541—Dispositions of bond wires
- H10W72/547—Dispositions of multiple bond wires
-
- 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
- H10W90/701—Package configurations characterised by the relative positions of pads or connectors relative to package parts
- H10W90/751—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bond wires
- H10W90/753—Package configurations characterised by the relative positions of pads or connectors relative to package parts of bond wires between laterally-adjacent chips
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- Led Devices (AREA)
- Led Device Packages (AREA)
Description
また、前記発光セルブロックは、N型半導体層、活性層及びP型半導体層が順次に積層された複数の発光セルと、前記複数の発光セルが付着された基板と、一方の発光セルのN型半導体層とこれと隣り合う他方の発光セルのP型半導体層とを接続する配線とを備えることが好ましい。
前記N型半導体層の上にN型パッドが形成され、前記P型半導体層の上にP型パッドが形成されることが好ましい。
このとき、前記発光セルに所定の整流電源を加えるための整流ブリッジ部をさらに備えることが好ましい。
そして、外部の交流電源と前記整流ブリッジ部とを接続するための電極をさらに備えることが好ましい。
前記発光セル及び前記整流ブリッジ部を外部の電源または外部素子と接続するための電極をさらに備えることが好ましい。
直列に接続された前記発光セルブロックが前記基板の上において逆並列に接続されていることが好ましい。
前記基板は、熱伝導性材質から形成されていることが好ましい。
前記熱伝導性材質からなる基板が電気伝導性を有する場合、基板上面に形成される絶縁膜と、前記絶縁膜と前記発光セルとの間に介装される電極パターンとをさらに備えることが好ましい。
前記複数の発光セルを設けるステップは、母基板の上に前記N型半導体層、活性層、及び前記P型半導体層を順次に形成するステップと、前記P型半導体層、活性層及びN型半導体層の一部を除去して個々の発光セルを電気的に絶縁するステップと、電気的に絶縁された前記P型半導体層の上にホスト基板(hostsubstrate)を貼り付けるステップと、前記母基板を除去するステップと、前記ホスト基板を切断して個々の発光セルを形成するステップとを含むことが好ましい。
前記発光素子を基板の上に付着させるステップをさらに含むことが好ましい。
Organic Chemical Vapor Deposition)、分子線成長法(MBE;Molecular Beam Epitaxy)、水素化物気相成長法(HVPE;Hydride Vapor Phase Epitaxy)などをはじめとする種
々の蒸着・成長方法により形成される。
する。N型半導体層220の下部にN型パッド210を形成した後、ホスト基板を個々の発光セル別に切断して垂直型の発光セル200を製造する。
図12を参照すると、この実施形態による発光素子300は、直列に接続されている複数の発光セル100、200と、発光セル100、200に所定の電流を加えるための整流ブリッジ部301と、整流ブリッジ部301に接続されている第1及び第2の電極310及び320と、整流ブリッジ部301に接続されてLEDアレイの抵抗を調節するための外部接続用の負電極350と、発光セル100、200に接続されている直流用の正電極360とを備える。
20、201 基板
30 バッファ層
40、220 N型半導体層
50、230 活性層
60、240 P型半導体層
70 透明電極
80、260 (金属)配線
90、95、210、250 (P型、N型)パッド
100、200 発光セル
301 整流ブリッジ部
310、320、330、340 (第1〜第4の)電極
350 外部接続用の負電極
360 直流用の正電極
410 電源部
420 制御部
Claims (5)
- 基板と、
前記基板上に配置され、基板上の下部半導体層、前記下部半導体層上の活性層、前記活性層上の上部半導体層をそれぞれ含む複数の発光セルと、
前記複数の発光セル上にそれぞれ配置された上部電極と、
前記基板と前記複数の発光セルの下部半導体層との間にそれぞれ配置され、前記発光セルの一側へのみ延長され上面が露出されている下部電極と、
前記複数の発光セルのうちの一つの発光セルの前記下部電極と前記一つの発光セルに隣接する別の発光セルの上部電極との間に形成された絶縁膜と、
前記絶縁膜上に配置され、前記複数の発光セルのうち一つの発光セルの下部電極の露出された上面と隣接する他の発光セルの上部電極とを連結する配線と、
を含む発光ダイオードであって、
前記複数の発光セルは、母基板が除去されていることを特徴とする発光ダイオード。 - 前記基板と前記下部電極との間に配置された絶縁層を含み、
前記基板は、導電性基板であることを特徴とする請求項1に記載の発光ダイオード。 - 前記複数の発光セルの側面には、前記絶縁膜が接していることを特徴とする請求項1に記載の発光ダイオード。
- 前記配線は、ステップカバレッジ工程によって接続されることを特徴とする請求項1に記載の発光ダイオード。
- 前記複数の発光セルは、二つ以上の発光セルのブロックを構成し、前記複数の発光セルの一つのブロックは交流電源の順方向の電圧印加時で光を出射し、前記複数の発光セルの別のブロックは交流電源の逆方向の電圧印加時で光を出射することを特徴とする請求項1に記載の発光ダイオード。
Applications Claiming Priority (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR10-2004-0049906 | 2004-06-30 | ||
| KR20040049906 | 2004-06-30 | ||
| KR10-2004-0087379 | 2004-10-29 | ||
| KR1020040087379A KR100961483B1 (ko) | 2004-06-30 | 2004-10-29 | 다수의 셀이 결합된 발광 소자 및 이의 제조 방법 및 이를이용한 발광 장치 |
| KR10-2004-0104569 | 2004-12-11 | ||
| KR20040104569A KR20060065954A (ko) | 2004-12-11 | 2004-12-11 | 다수의 셀이 결합된 발광 소자 및 이의 제조 방법 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007519123A Division JP4841550B2 (ja) | 2004-06-30 | 2005-06-29 | 発光素子及びその製造方法並びにこれを用いた発光装置 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2011181973A JP2011181973A (ja) | 2011-09-15 |
| JP5777948B2 true JP5777948B2 (ja) | 2015-09-09 |
Family
ID=35783103
Family Applications (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007519123A Expired - Fee Related JP4841550B2 (ja) | 2004-06-30 | 2005-06-29 | 発光素子及びその製造方法並びにこれを用いた発光装置 |
| JP2009263499A Withdrawn JP2010034610A (ja) | 2004-06-30 | 2009-11-19 | 発光素子及びその製造方法並びにこれを用いた発光装置 |
| JP2010114024A Withdrawn JP2010177712A (ja) | 2004-06-30 | 2010-05-18 | 発光素子及びその製造方法並びにこれを用いた発光装置 |
| JP2011138196A Expired - Lifetime JP5777948B2 (ja) | 2004-06-30 | 2011-06-22 | 発光ダイオード |
Family Applications Before (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2007519123A Expired - Fee Related JP4841550B2 (ja) | 2004-06-30 | 2005-06-29 | 発光素子及びその製造方法並びにこれを用いた発光装置 |
| JP2009263499A Withdrawn JP2010034610A (ja) | 2004-06-30 | 2009-11-19 | 発光素子及びその製造方法並びにこれを用いた発光装置 |
| JP2010114024A Withdrawn JP2010177712A (ja) | 2004-06-30 | 2010-05-18 | 発光素子及びその製造方法並びにこれを用いた発光装置 |
Country Status (4)
| Country | Link |
|---|---|
| US (7) | US7804098B2 (ja) |
| EP (3) | EP1787336B1 (ja) |
| JP (4) | JP4841550B2 (ja) |
| WO (1) | WO2006004337A1 (ja) |
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| EP1787336A1 (en) | 2007-05-23 |
| JP2010034610A (ja) | 2010-02-12 |
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| EP1787336A4 (en) | 2011-03-30 |
| EP2733744A1 (en) | 2014-05-21 |
| JP4841550B2 (ja) | 2011-12-21 |
| US20110062465A1 (en) | 2011-03-17 |
| US7964880B2 (en) | 2011-06-21 |
| EP2144286A3 (en) | 2011-03-30 |
| US20100109031A1 (en) | 2010-05-06 |
| JP2008505478A (ja) | 2008-02-21 |
| US20130277682A1 (en) | 2013-10-24 |
| EP1787336B1 (en) | 2016-01-20 |
| US8492775B2 (en) | 2013-07-23 |
| JP2011181973A (ja) | 2011-09-15 |
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