JP6839659B2 - 有機層の高分解能パターニングのための方法 - Google Patents
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- H10K71/231—Changing the shape of the active layer in the devices, e.g. patterning by etching of existing layers
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Description
Claims (14)
- 基板(10)上の有機層(11,30,71,72,73)のフォトリソグラフィパターニングのための方法であって、
前記有機層(11,30,71,72,73)上に水溶性遮蔽層(13,61,62,63)を設けるステップと、
前記遮蔽層(13,61,62,63)上にフォトレジスト層(14)を直接設けるステップと、
前記フォトレジスト層(14)をフォトリソグラフィパターニングし、それによって、パターン化フォトレジスト層(141)を形成するステップと、
前記パターン化フォトレジスト層(141)をマスクとして使用して前記遮蔽層(13,61,62,63)および前記有機層(11,30,71,72,73)をエッチングし、それによって、パターン化遮蔽層(131)およびパターン化有機層(111,301,711,721,731)を形成するステップと、
その後、前記パターン化遮蔽層を除去するステップと、を含み、
前記方法は、前記水溶性遮蔽層(13,61,62,63)を設ける前に、前記有機層(11,30,71,72,73)上に疎水性上面(121)を有する疎水性保護層(12,81,82,83)を設けるステップを含み、
前記有機層(11,30,71,72,73)上に前記水溶性遮蔽層(13,61,62,63)を設けるステップは、前記疎水性保護層(12,81,82,83)上に、前記疎水性保護層と直に接触させて、前記水溶性遮蔽層(13,61,62,63)を設けるステップを含む、方法。 - 前記パターン化遮蔽層(131)を除去するステップは、前記パターン化遮蔽層を水または水を含む溶液に露出させるステップを含む、請求項1に記載の方法。
- 前記有機層(11,30,71,72,73)は、有機半導体層を含む、請求項1または2に記載の方法。
- 前記有機層(11,30,71,72,73)は、エレクトロルミネセンス層(33)または感光層を含む、請求項1〜3のいずれか1項に記載の方法。
- 前記疎水性保護層(12,81,82,83)は疎水性有機半導体層である、請求項1〜4のいずれか1項に記載の方法。
- 前記疎水性保護層(12,81,82,83)は、少なくとも2つの層を含む多層スタックであり、前記多層スタックの上層は疎水性上面を有する、請求項1〜5のいずれか1項に記載の方法。
- 請求項1〜6のいずれか1項に記載の方法を用いて有機層(11,30,71,72,73)をパターニングするステップを含む、前記有機層を含む電子デバイス(100,300)を製造する方法。
- 前記有機層(30,71,72,73)は、前記デバイスの活性有機半導体層を含み、前記疎水性保護層(12,81,82,83)は、前記デバイスの疎水性有機半導体電荷輸送層である、請求項7に記載の電子デバイス(100,300)を製造する方法。
- 前記活性有機半導体層(30,71,72,73)は、前記疎水性有機半導体電荷輸送層(12,81,82,83)と接触する表面において第1のHOMOエネルギー準位および第1のLUMOエネルギー準位を有し、前記疎水性有機半導体電荷輸送層(12,81,82,83)は、前記活性有機半導体層(30,71,72,73)と接触する表面において第2のHOMOエネルギー準位および第2のLUMOエネルギー準位を有し、前記第2のHOMOエネルギー準位は、前記第1のHOMOエネルギー準位よりも低くなるように選択され、前記第2のLUMOエネルギー準位は、前記第1のLUMOエネルギー準位よりも高くなるように選択される、請求項8に記載の電子デバイス(100,300)を製造する方法。
- 前記疎水性有機半導体電荷輸送層(12,81,82,83)は、前記活性有機半導体層(30,71,72,73)と接触している第1の電荷輸送層(128)と、多層スタックの上側にある第2の電荷輸送層(129)とを含む多層スタックであり、前記第2の電荷輸送層(129)は疎水性上面を有する、請求項8または9に記載の電子デバイス(100,300)を製造する方法。
- 前記第2の電荷輸送層(129)がドープされ、前記第1の電荷輸送層(128)の少なくとも上部(127)がドープされる、請求項10に記載の電子デバイス(100,300)を製造する方法。
- 前記電子デバイスが有機発光デバイスであり、前記活性有機半導体層がエレクトロルミネセンス層である、請求項8〜11のいずれか1項に記載の電子デバイス(100,300)を製造する方法。
- 基板(10)上の第1の位置に第1の有機層(71)を含み、前記基板(10)上の第2の位置に第2の有機層(72)を含む電子デバイス(300)を製造する方法であって、前記第2の位置は前記第1の位置とは重なり合わず、前記第1の有機層(71)および前記第2の有機層(72)は、請求項1〜6のいずれか1項に記載の方法を用いてパターニングされる、方法。
- 前記電子デバイスは、多色有機発光デバイスであり、前記第1の有機層(71)は、第1の色スペクトルを放出するための第1のエレクトロルミネセンス層を含み、前記第2の有機層(72)は、第2の色スペクトルを放出するための第2のエレクトロルミネセンス層を含む、請求項13に記載の電子デバイス(300)を製造する方法。
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