JP6772042B2 - 貫通基板の製造方法 - Google Patents
貫通基板の製造方法 Download PDFInfo
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Description
2 エネルギー発生素子
3 貫通孔
4 機能膜
5 レジスト
6 検査モニタ
7 エッチング用物質
8 流路形成部材
9 裏面機能部材
10 基板のおもて面(第一の面)
11 基板の裏面(第二の面)
12 吐出口
Claims (11)
- 基板の第一の面から前記第一の面の反対側の面である第二の面まで貫通する貫通孔を形成する工程と、前記第一の面および前記貫通孔の側壁および前記第二の面に膜を形成する工程と、前記第一の面にレジストを形成する工程と、前記レジストを前記貫通孔の第一の面側の開口が塞がれるようにパターニングする工程と、前記第一の面の前記膜を前記レジストをマスクとしてエッチングする工程と、を含む貫通基板の製造方法であって、
前記エッチングする工程よりも前に、前記第二の面に、前記貫通孔の第二の面側の開口を塞ぐ部材を検査用部材として形成する工程を含み、さらに、
工程a)前記エッチングの後に、前記検査用部材の色の変化を用いて、膜パターニング不良の有無を判定する工程、および
工程b)前記検査用部材として変形可能な部材を用い、前記貫通孔の両側の開口が塞がれる際の圧力とは異なる圧力下で、前記検査用部材に現れる凹凸差を用いて、膜パターニング不良の原因となる欠陥の有無を判定する工程
の少なくとも一方を含むことを特徴とする、貫通基板の製造方法。 - 前記貫通孔の第二の面側の開口の最大寸法が50μm以上である、請求項1に記載の貫通基板の製造方法。
- 前記工程a)を含み、かつ、
前記レジスト、前記パターニングに用いる現像液、および前記エッチングに用いるウェットエッチング液のうちの1つ以上が、可視光領域の光を吸収する、請求項1または2に記載の貫通基板の製造方法。 - 前記工程a)を含み、かつ、
前記レジストをドライフィルムで形成し、前記レジストのパターニングにフォトリソグラフィーを用い、前記検査用部材が可視光を透過する粘着テープである、請求項1から3の何れか一項に記載の貫通基板の製造方法。 - 前記工程b)を含み、かつ、
前記検査用部材が粘着層と段差吸収層を有する粘着テープであって、粘着層と段差吸収層の合計厚みが20μm以上、1000μm以下である、請求項1から4の何れか一項に記載の貫通基板の製造方法。 - 前記工程b)を含み、かつ、
前記貫通孔の両側の開口が塞がれる際の圧力を1000Pa以下の減圧にし、前記欠陥の有無を判定する工程を大気圧で実施する
請求項1から5の何れか一項に記載の貫通基板の製造方法。 - 一つの基板に前記貫通孔を複数形成し、
前記検査用部材によって、前記複数の貫通孔の前記第二の面側の開口を塞ぐ工程を含む、請求項1から6の何れか一項に記載の貫通基板の製造方法。 - 前記基板に接触させる装置を、前記検査用部材を介して前記基板に接触させる工程を含む、請求項1から7の何れか一項に記載の貫通基板の製造方法。
- 前記エッチングの後に、レジストを剥離する剥離工程を含み、
前記剥離工程で用いるレジストの剥離液が、前記検査用部材の少なくとも一部を溶解する、請求項1から8の何れか一項に記載の貫通基板の製造方法。 - 第一の面にエネルギー発生素子を備えた基板と、吐出口を有し基板の第一の面との間に液体流路を形成する流路形成部材と、前記基板の第一の面の反対側の面である第二の面側から前記液体流路に液体を供給する供給孔として、前記液体流路と連通し基板を貫通する貫通孔とを含む液体吐出ヘッドの製造方法であって、
前記基板の第一の面から第二の面まで貫通する貫通孔を形成する工程と、前記第一の面および前記貫通孔の側壁および前記第二の面に膜を形成する工程と、前記第一の面にレジストを形成する工程と、前記レジストを前記貫通孔の第一の面側の開口が塞がれるようにパターニングする工程と、前記第一の面の前記膜を前記レジストをマスクとしてエッチングする工程と、を含み、かつ、
前記エッチングする工程よりも前に、前記第二の面に、前記貫通孔の第二の面側の開口を塞ぐ部材を検査用部材として形成する工程を含み、さらに、
工程a)前記エッチングの後に、前記検査用部材の色の変化を用いて、膜パターニング不良の有無を判定する工程、および
工程b)前記検査用部材として変形可能な部材を用い、前記貫通孔の両側の開口が塞がれる際の圧力とは異なる圧力下で、前記検査用部材に現れる凹凸差を用いて、膜パターニング不良の原因となる欠陥の有無を判定する工程
の少なくとも一方を含むことを特徴とする、液体吐出ヘッドの製造方法。 - 貫通孔を有し第一の面および前記第一の面の反対側の面である第二の面および貫通孔の側壁に膜を有する基板の第一の面の膜を、前記貫通孔の第一の面側の開口が塞がれるように前記第一の面にレジストがパターニングされた状態で、前記レジストをマスクとしてエッチングしてパターニングする際に、前記膜のパターニング不良または前記不良の原因となる欠陥を検出する方法であって、
前記エッチングよりも前に、前記第二の面に、前記貫通孔の第二の面側の開口を塞ぐ部材を検査用部材として形成する工程を含み、さらに、
工程a)前記エッチングの後に前記検査用部材の色の変化を用いて膜パターニング不良の有無を判定する工程、および
工程b)前記検査用部材として変形可能な部材を用い、前記貫通孔の両側の開口が塞がれる際の圧力とは異なる圧力下で、前記検査用部材に現れる凹凸差を用いて、膜パターニング不良の原因となる欠陥の有無を判定する工程
の少なくとも一方を含むことを特徴とする、膜のパターニング不良または前記不良の原因となる欠陥の検出方法。
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