JP5526232B2 - モールドされた反射側壁コーティングを備える発光ダイオード - Google Patents
モールドされた反射側壁コーティングを備える発光ダイオード Download PDFInfo
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- JP5526232B2 JP5526232B2 JP2012521123A JP2012521123A JP5526232B2 JP 5526232 B2 JP5526232 B2 JP 5526232B2 JP 2012521123 A JP2012521123 A JP 2012521123A JP 2012521123 A JP2012521123 A JP 2012521123A JP 5526232 B2 JP5526232 B2 JP 5526232B2
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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
- H10H20/84—Coatings, e.g. passivation layers or antireflective coatings
- H10H20/841—Reflective coatings, e.g. dielectric Bragg reflectors
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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
- H10H20/851—Wavelength conversion means
- H10H20/8514—Wavelength conversion means characterised by their shape, e.g. plate or foil
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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
- H10H20/855—Optical field-shaping means, e.g. lenses
-
- 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
- H10H20/855—Optical field-shaping means, e.g. lenses
- H10H20/856—Reflecting means
-
- 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]
- H10H20/01—Manufacture or treatment
- H10H20/034—Manufacture or treatment of coatings
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Description
Claims (13)
- 側壁及び頂面を有する発光ダイオード(LED)と;
該LEDが取り付けられ、側端と、回路基板に接合するための金属パッドを備える底面とを有するサブマウントと;
前記側壁上に直接設けられ、反射を生じさせる不活性非蛍光物質粒子を含む実質的に透明な材料を有し、該粒子が少なくとも10重量%の反射性材料であり、かつ前記粒子が白色環境照明下で実質的な白色を有する実質的な反射性材料であり、
前記LEDの前記頂面を実質的に覆わずに、前記LEDから発せられた光を少なくとも部分的に閉じ込めるように前記側壁を覆う反射性材料と;
前記LED、サブマウント、及び反射性材料とは別体に形成され、前記LEDが挿入される開口部を有し、前記サブマウントの頂面より上方で前記LEDの前記頂面より下方に位置しかつ前記LEDの周囲に外周部を形成する内縁部を有し、
前記サブマウントの前記側端を越えて延在する外縁部を有し、前記サブマウントが据え付けられる凹部を有し、前記サブマウントの前記底面より下方には延びない底面を有し、かつ前記反射性材料より上方に延びる反射壁を有するリフレクターと:
を有する発光デバイス。 - 前記粒子が、TiOX、ZrOX、又はAl2O3のうちのいずれかを1つを含む請求項1に記載の発光デバイス。
- 前記粒子が、前記反射性材料の約20〜50重量%を含む請求項1に記載の発光デバイス。
- 前記粒子の平均直径が、1ミクロン未満である請求項1に記載の発光デバイス。
- 前記実質的に透明な材料が、シリコンを含む請求項1に記載の発光デバイス。
- 前記LEDが、蛍光物質層を有し、前記反射性材料が該蛍光物質層の側壁を覆う請求項1に記載の発光デバイス。
- 前記蛍光物質層が、前記LEDの半導体部の頂面に固定された板材である請求項6に記載の発光デバイス。
- 前記リフレクターの前記内縁部が、前記反射性材料の外縁からスペースを置く請求項1に記載の発光デバイス。
- 前記反射性材料が、前記LEDの前記頂面と少なくとも同じ高さまで延在する請求項1に記載の発光デバイス。
- 側壁と頂面を有する発光ダイオード(LED)を、サブマウントに取り付け;
凹部を有するモールドに対して該サブマウントの位置合わせを行い;
前記サブマウントと前記モールドとの間に、反射を生じさせる不活性非蛍光物質粒子を含む実質的に透明な材料を有し、該粒子が少なくとも10重量%の反射性材料であり、かつ白色環境照明下で実質的に白色を有する、実質的な反射性材料を供給し;
前記凹部は、前記反射性材料が、前記LEDの前記側壁を覆う反射壁を形成して、かつ前記頂面と前記凹部との間にかなりの厚みが存在しないように、前記LEDの外回り寸法よりも大きい寸法を有し、
前記反射性材料を硬化し;
前記側壁を覆う前記反射性材料が前記LEDから発せられる光を閉じ込めるように、前記モールドから前記サブマウントを分離し;
前記サブマウントは側端と、回路基板に接着するための金属パッドを備える底面とを有し、
前記サブマウントに、前記LEDが挿入される開口部と、前記反射性材料の周囲に内縁部とを有する反射片を固定し、該反射片は、前記サブマウントの前記側端を越えて延在する外端部を有し、かつ前記サブマウントが据え付けられる凹部を有し、前記サブマウントの前記底面より下方には延びない底面を有し、かつ、前記反射性材料より上方に延びる反射壁を有する:
発光デバイスの製造方法。 - 前記粒子が、TiOX、ZrOX、又はAl2O3のうちのいずれかを1つを含む請求項10に記載の発光デバイスの製造方法。
- 前記LEDが蛍光物質層を有し、前記反射性材料が該蛍光物質層の側壁を覆う請求項10に記載の発光デバイスの製造方法。
- 前記モールドに対する前記サブマウントの位置合わせは、サブマウントウェハ上の個々のLEDの位置に対応する複数個の同一の凹部を備える前記モールドに対する、複数個のLEDが取り付けられた前記サブマウントウェハの位置合わせを含む請求項10に記載の発光デバイスの製造方法。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/508,238 US8097894B2 (en) | 2009-07-23 | 2009-07-23 | LED with molded reflective sidewall coating |
| US12/508,238 | 2009-07-23 | ||
| PCT/IB2010/052847 WO2011010234A1 (en) | 2009-07-23 | 2010-06-23 | Led with molded reflective sidewall coating |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2012533902A JP2012533902A (ja) | 2012-12-27 |
| JP5526232B2 true JP5526232B2 (ja) | 2014-06-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| JP2012521123A Active JP5526232B2 (ja) | 2009-07-23 | 2010-06-23 | モールドされた反射側壁コーティングを備える発光ダイオード |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US8097894B2 (ja) |
| EP (1) | EP2457267B1 (ja) |
| JP (1) | JP5526232B2 (ja) |
| KR (1) | KR101736518B1 (ja) |
| CN (1) | CN102473811B (ja) |
| TW (1) | TWI502778B (ja) |
| WO (1) | WO2011010234A1 (ja) |
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| KR101736518B1 (ko) | 2017-05-16 |
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| TW201114076A (en) | 2011-04-16 |
| CN102473811A (zh) | 2012-05-23 |
| US8097894B2 (en) | 2012-01-17 |
| US20110018017A1 (en) | 2011-01-27 |
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| EP2457267B1 (en) | 2018-08-15 |
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