JP2013016868A - Ledパッケージにおけるテクスチャード加工された封止体表面 - Google Patents
Ledパッケージにおけるテクスチャード加工された封止体表面 Download PDFInfo
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- JP2013016868A JP2013016868A JP2012232743A JP2012232743A JP2013016868A JP 2013016868 A JP2013016868 A JP 2013016868A JP 2012232743 A JP2012232743 A JP 2012232743A JP 2012232743 A JP2012232743 A JP 2012232743A JP 2013016868 A JP2013016868 A JP 2013016868A
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- led
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier 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 with at least one potential-jump barrier or surface barrier 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
- H01L33/52—Encapsulations
- H01L33/54—Encapsulations having a particular shape
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
- H01L25/03—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes
- H01L25/04—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers
- H01L25/075—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00
- H01L25/0753—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof all the devices being of a type provided for in the same subgroup of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. assemblies of rectifier diodes the devices not having separate containers the devices being of a type provided for in group H01L33/00 the devices being arranged next to each other
-
- 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
- H01L2924/0001—Technical content checked by a classifier
- H01L2924/0002—Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0091—Scattering means in or on the semiconductor body or semiconductor body package
Abstract
【解決手段】付加または削除工程を用いてテクスチャード加工された封止体は、パッケージ化される前、または最中にLEDに付加される。封止体は、光が放出される少なくとも1つのテクスチャード加工された表面を含む。テクスチャード加工された表面は、封止体の中での全内部反射を低減し、取り出し効率と出力分布の色温度一様性とを改善するのに役立つ。いくつかのチップを、単一のテクスチャード加工された封止体の下に搭載できる。凹凸表面を有する金型を、多くのLED上に同時に複数の封止体を形成するために用いることが出来る。
【選択図】図1
Description
TIRは、光線が、スネルの法則によって定義されるように臨界角を超える角度で媒質の境界に入射するときに起こる光学的な現象である。臨界角は、2つの媒質の間の屈折率差の関数である。TIRは、光が、より大きい屈折率を有する媒質から、より小さい屈折率を有する媒質へ進む場合にのみ生じる。光線が、臨界角より大きな角度で媒質の境界に入射する場合、光は、放出光として逃げ出すのではなく、反射してもと来た媒質へ戻る。内部反射した光は、そこで媒質内の材料によって、または媒質自身によって吸収される。TIRは、LEDデバイスの取り出し効率を低減する。
Claims (14)
- マウントの表面上に配置された少なくとも1つのLEDチップと、
前記マウントの表面に近接して配置された封止体であって、前記マウントの表面と実質的に共形であるテクスチャード加工された発光面を備える封止体と
を備えたことを特徴とする発光ダイオード(LED)デバイス。 - 前記マウントの表面上に配置された複数のLEDチップを更に備えたことを特徴とする請求項1に記載のLEDデバイス。
- 前記複数のLEDチップは、少なくとも2つの異なる光スペクトルを放出するLEDチップを含むことを特徴とする請求項2に記載のLEDデバイス。
- 前記マウントの表面は、反射性の材料を備えることを特徴とする請求項1に記載のLEDデバイス。
- 前記反射性の材料は、光散乱特性を有することを特徴とする請求項4に記載のLEDデバイス。
- 前記封止体は、周りの媒質と界面を形成し、前記界面での屈折率差が少なくとも0.4であることを特徴とする請求項1に記載のLEDデバイス。
- 前記封止体は、波長変換材料を含むことを特徴とする請求項1に記載のLEDデバイス。
- 前記封止体は、70−200μmの範囲の厚さを有することを特徴とする請求項1に記載のLEDデバイス。
- マウントの表面と、
前記マウントの表面上に配置された複数のLEDと、
前記マウントの表面に実質的に平行である発光面を有する封止体であって、前記発光面は、複数の凹凸のある表面構造を作るためにテクスチャード加工されている封止体と
を備えたことを特徴とするチップスケールパッケージ発光ダイオード(LED)デバイス。 - 前記凹凸のある表面構造は、前記封止体が初めに硬化するときに金型の中で形成されることを特徴とする請求項9に記載のチップスケールパッケージLEDデバイス。
- 前記複数のLEDは、異なるスペクトルを放出するLEDを含むことを特徴とする請求項9に記載のチップスケールパッケージLEDデバイス。
- 前記複数のLEDチップは、赤色のスペクトルを放出するLEDチップと、緑色のスペクトルを放出するLEDチップと、青色のスペクトルを放出するLEDチップとを含むことを特徴とする請求項11に記載のチップスケールパッケージLEDデバイス。
- 前記複数のLEDチップは、赤色のスペクトルを放出するLEDチップと、白色のスペクトルを放出するLEDチップとを含むことを特徴とする請求項11に記載のチップスケールパッケージLEDデバイス。
- 前記複数のLEDチップは、青色のスペクトルを放出するLEDチップと、黄色のスペクトルを放出するLEDチップとを含むことを特徴とする請求項11に記載のチップスケールパッケージLEDデバイス。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/002,429 | 2007-12-14 | ||
US12/002,429 US9431589B2 (en) | 2007-12-14 | 2007-12-14 | Textured encapsulant surface in LED packages |
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JP2008309821A Division JP2009147329A (ja) | 2007-12-14 | 2008-12-04 | Ledパッケージにおけるテクスチャード加工された封止体表面 |
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JP2013016868A true JP2013016868A (ja) | 2013-01-24 |
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Application Number | Title | Priority Date | Filing Date |
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JP2008309821A Pending JP2009147329A (ja) | 2007-12-14 | 2008-12-04 | Ledパッケージにおけるテクスチャード加工された封止体表面 |
JP2012232744A Pending JP2013042166A (ja) | 2007-12-14 | 2012-10-22 | Ledパッケージにおけるテクスチャード加工された封止体表面 |
JP2012232743A Pending JP2013016868A (ja) | 2007-12-14 | 2012-10-22 | Ledパッケージにおけるテクスチャード加工された封止体表面 |
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JP2008309821A Pending JP2009147329A (ja) | 2007-12-14 | 2008-12-04 | Ledパッケージにおけるテクスチャード加工された封止体表面 |
JP2012232744A Pending JP2013042166A (ja) | 2007-12-14 | 2012-10-22 | Ledパッケージにおけるテクスチャード加工された封止体表面 |
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US (1) | US9431589B2 (ja) |
EP (1) | EP2071642B1 (ja) |
JP (3) | JP2009147329A (ja) |
CN (1) | CN101471416B (ja) |
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CN101471416A (zh) | 2009-07-01 |
US9431589B2 (en) | 2016-08-30 |
EP2071642B1 (en) | 2018-03-07 |
JP2009147329A (ja) | 2009-07-02 |
CN101471416B (zh) | 2014-12-31 |
EP2071642A2 (en) | 2009-06-17 |
US20090152573A1 (en) | 2009-06-18 |
EP2071642A3 (en) | 2011-09-07 |
JP2013042166A (ja) | 2013-02-28 |
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