JP7018511B2 - Ledアレイための波長変換層パターニング - Google Patents
Ledアレイための波長変換層パターニング Download PDFInfo
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- JP7018511B2 JP7018511B2 JP2020534926A JP2020534926A JP7018511B2 JP 7018511 B2 JP7018511 B2 JP 7018511B2 JP 2020534926 A JP2020534926 A JP 2020534926A JP 2020534926 A JP2020534926 A JP 2020534926A JP 7018511 B2 JP7018511 B2 JP 7018511B2
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- 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
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/02—Use of particular materials as binders, particle coatings or suspension media therefor
- C09K11/025—Use of particular materials as binders, particle coatings or suspension media therefor non-luminescent particle coatings or suspension media
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- H—ELECTRICITY
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- 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
- H01L33/24—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 of the light emitting region, e.g. non-planar junction
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- 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
- H01L33/26—Materials of the light emitting region
- H01L33/30—Materials of the light emitting region containing only elements of Group III and Group V of the Periodic Table
- H01L33/32—Materials of the light emitting region containing only elements of Group III and Group V of the Periodic Table containing nitrogen
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
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- H01L33/44—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 coatings, e.g. passivation layer or anti-reflective coating
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Description
サイズが50~500nmの、セリウムを含まないYAGシェルに封入された、複数の蛍光体粒子(phosphor grains)及び複数の蛍光体粒子を結合するバインダー材料を含む波長変換層が開示されている。波長変換層は、発光面に取り付けられた5~20ミクロンの厚さを有する。5~20ミクロンの厚さを有する波長変換層が発光面に取り付けられている。
添付の図面と共に例として与えられる以下の説明から、より詳細な理解を得ることができる。
異なる光照明システム及び/又は発光ダイオード(「LED」)の実装の例は、添付の図面を参照して、以下でより完全に説明される。これらの例は相互に排他的ではなく、追加の実装を実現するため、1つの例に見られる特徴は、1つ以上の他の例に見られる特徴と組み合わせることができる。したがって、添付の図面に示される例は、図示のみを目的として提供されており、これらは、決して本開示を限定することを意図していないことが理解されよう。類似の番号は全体を通して類似の要素を指す。
Claims (32)
- 以下の:
波長変換層を表面上に堆積させることであって、前記波長変換層は、光開始剤及びバインダー材料を含み、及び
ナノインプリントリソグラフィプロセスを前記波長変換層に適用することによって、前記波長変換層をパターニングすること、を含み、前記ナノインプリントリソグラフィプロセスは、
ナノインプリントモールドを前記波長変換層に適用すること、
前記光開始剤によって吸収された紫外線で前記波長変換層を照射して、前記光開始剤が脱炭酸を起こすように前記波長変換層を硬化させること、及び
前記硬化後に前記ナノインプリントモールドを前記波長変換層から除去すること、
を含む方法であって、ここで、前記光開始剤は光脱炭酸を起こすことができる化合物である、方法。 - 前記波長変換層のパターニングが、波長変換ピクセルのアレイを画定する、請求項1に記載の方法。
- 前記アレイ中のピクセルの、幅が100ミクロン以下、隣接するピクセル間の間隔が20ミクロン以下、又は幅が100ミクロン以下及び隣接するピクセル間の間隔が20ミクロン以下である、請求項2に記載の方法。
- 発光半導体ダイオードのアレイを波長変換ピクセルの前記アレイと位置合わせすること、及び各波長変換ピクセルを対応する発光半導体ダイオードに取り付けることを含む、請求項3に記載の方法。
- 前記バインダー材料は、シロキサン材料、ポリシラザン、又はゾルゲル材料のうちの1つ以上を含む、請求項1に記載の方法。
- 前記光開始剤が塩である、請求項1に記載の方法。
- 脱炭酸された光開始剤が、前記バインダー材料の反応性鎖末端又は架橋性基質の反応を触媒する、請求項1に記載の方法。
- 脱炭酸された光開始剤が、前記バインダー材料の縮合重合又は開環重合を触媒する、請求項1に記載の方法。
- 前記脱炭酸が超塩基を生成する、請求項1に記載の方法。
- バインダーの硬化後に前記超塩基の蒸発又は熱分解により前記超塩基を除去することを含む、請求項9に記載の方法。
- 請求項1に記載の方法であって、
前記バインダー材料は、シロキサン材料、ポリシラザン、又はゾルゲル材料のうち1つ以上を含み、
前記光開始剤は塩であり、
前記波長変換層を硬化することは、前記光開始剤によって吸収された紫外線で前記波長変換層を照射して、前記光開始剤の脱炭酸を引き起こすことを含み、
前記光開始剤の脱炭酸は、超塩基を生成する、方法。 - 超塩基が、前記バインダー材料の鎖末端又は架橋可能な基質の反応を触媒する、請求項11に記載の方法。
- 超塩基が、前記バインダー材料の縮合重合又は開環重合を触媒する、請求項11に記載の方法。
- 前記バインダーの硬化後に超塩基の蒸発又は熱分解により超塩基を除去することを含む、請求項11に記載の方法。
- 前記波長変換層のパターニングが、波長変換ピクセルのアレイを規定する、請求項11~14のいずれか一項に記載の方法。
- 発光半導体ダイオードのアレイを波長変換ピクセルの前記アレイと位置合わせすること、及び各波長変換ピクセルを対応する発光半導体ダイオードに取り付けることを含む、請求項15に記載の方法。
- 前記アレイ中のピクセルの、幅が100ミクロン以下、隣接するピクセル間の間隔が20ミクロン以下、又は幅が100ミクロン以下及び隣接するピクセル間の間隔が20ミクロン以下である、請求項15又は16に記載の方法。
- 以下の:
光開始剤及び硬化性材料を含む層を表面上に堆積させること、
硬化性材料の前記層にナノインプリントモールドを適用して、キャビティを規定する交差する壁を含むメッシュを形成すること、
前記ナノインプリントモールドを適用した後、前記光開始剤によって吸収された紫外線で前記波長変換層を照射して、前記光開始剤の脱炭酸を引き起こして、前記硬化性材料の硬化を開始すること、
前記硬化性材料を硬化させた後、前記ナノインプリントモールドを除去すること、及び
前記ナノインプリントモールドを除去した後、前記キャビティに波長変換材料を堆積させて、波長変換ピクセルのアレイを形成すること、
を含む方法であって、ここで、前記光開始剤は光脱炭酸を起こすことができる化合物である、方法。 - 前記アレイ中のピクセルの、幅が100ミクロン以下、隣接するピクセル間の間隔が20ミクロン以下、又は幅が100ミクロン以下及び隣接するピクセル間の間隔が20ミクロン以下である、請求項18に記載の方法。
- 発光半導体ダイオードのアレイを波長変換ピクセルの前記アレイと位置合わせすること、及び各波長変換ピクセルを対応する発光半導体ダイオードに取り付けることを含む、請求項19に記載の方法。
- 前記硬化性材料は、シロキサン材料、ポリシラザン、又はゾルゲル材料のうちの1つ以上を含む、請求項18に記載の方法。
- 前記光開始剤が塩である、請求項18に記載の方法。
- 脱炭酸された光開始剤が、前記硬化性材料の鎖末端又は架橋性基質の反応を触媒する、請求項18に記載の方法。
- 脱炭酸された光開始剤が、前記硬化性材料の縮合重合又は開環重合を触媒する、請求項18に記載の方法。
- 前記脱炭酸が超塩基を生成する、請求項18に記載の方法。
- 前記硬化性材料の硬化後に前記超塩基の蒸発又は熱分解により前記超塩基を除去することを含む、請求項25に記載の方法。
- 請求項18に記載の方法であって、
前記硬化性材料は、シロキサン材料、ポリシラザン、又はゾルゲル材料のうち1つ以上を含み、
前記光開始剤は塩であり、
前記硬化性材料を硬化することは、前記光開始剤によって吸収された紫外線で前記波長層を照射して、前記光開始剤の脱炭酸を引き起こすことを含み、
前記光開始剤の脱炭酸は、超塩基を生成する、方法。 - 超塩基が、前記硬化性材料の鎖末端又は架橋可能な基質の反応を触媒する、請求項27に記載の方法。
- 超塩基が、前記硬化性材料の縮合重合又は開環重合を触媒する、請求項27に記載の方法。
- 前記硬化性材料の硬化後に超塩基の蒸発又は熱分解により超塩基を除去することを含む、請求項27に記載の方法。
- 発光半導体ダイオードのアレイを波長変換ピクセルの前記アレイと位置合わせすること、及び各波長変換ピクセルを対応する発光半導体ダイオードに取り付けることを含む、請求項27~30のいずれか一項に記載の方法。
- 前記アレイ中のピクセルの、幅が100ミクロン以下、隣接するピクセル間の間隔が20ミクロン以下、又は幅が100ミクロン以下及び隣接するピクセル間の間隔が20ミクロン以下である、請求項27~31に記載の方法。
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- 2018-12-21 CN CN201880090106.1A patent/CN111712933A/zh active Pending
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US20190198720A1 (en) | 2019-06-27 |
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