JP5230189B2 - 液体吐出ヘッドの製造方法 - Google Patents
液体吐出ヘッドの製造方法 Download PDFInfo
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- JP5230189B2 JP5230189B2 JP2007332552A JP2007332552A JP5230189B2 JP 5230189 B2 JP5230189 B2 JP 5230189B2 JP 2007332552 A JP2007332552 A JP 2007332552A JP 2007332552 A JP2007332552 A JP 2007332552A JP 5230189 B2 JP5230189 B2 JP 5230189B2
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Description
・ネガ型感光性樹脂の調合
エポキシ樹脂:EHPE−3150(ダイセル化学(株)製) 120g
光カチオン重合開始剤:SP−172(旭電化工業(株)製) 6g
増感剤:SP−100(旭電化工業(株)製) 1.2g
メチルイソブチルケトン 100g
を含むネガ型感光性樹脂を調合した。該ネガ型感光性樹脂を石英ガラス基板上に1μm膜厚で塗布し、365nmにおける吸光度を測定したところ、0.024であった。
上記ネガ型感光性樹脂を用い、図7に示す記録ヘッドを作成した。
本発明の実施例2の記録ヘッドについて図9を参照して説明する。
・ネガ型感光性樹脂の調合
エポキシ樹脂:EHPE−3150(ダイセル化学(株)製) 120g
光カチオン重合開始剤:SP−172(旭電化工業(株)製) 6g
増感剤:SP−100(旭電化工業(株)製) 1.5g
メチルイソブチルケトン 100g
から成るネガ型感光性樹脂を調合した。上記のネガ型感光性樹脂を石英ガラス基板上に1μm膜厚で塗布し、365nmにおける吸光度を測定したところ、0.030であった。
なお本実施例においては、ネガ型感光性樹脂11の膜厚は、基板上で20μm(図8(d)中のa+b部)、流路パターン10上で5μm(図8(d)中のa部)とした。
ネガ型感光性樹脂11として増感剤を添加していないものを用い、ネガ型感光性樹脂11の露光の際の露光量2000J/m2とした以外は、実施例1と同様にして記録ヘッドを作成した。なお、増感剤を添加していないネガ型感光性樹脂について実施例1と同様にして、365nmにおける吸光度を測定したところ、0.0016であった。
ネガ型感光性樹脂11の増感剤の添加量を3.9gとした以外は、実施例1と同様にして模擬的な記録ヘッドを作成した。なお、ネガ型感光性樹脂の、365nmにおける吸光度を測定したところ、0.078であった。
◎:吐出口のエッジ部分の形状について鋭角または直角が得られたもの。
○:吐出口のエッジ部分の形状が若干丸みを帯びているが、吐出において問題ないもの。
×:吐出口のエッジ部分の形状が丸みを帯びるとともに、吐出部全体の形状も歪みなどが見られた。
解像不可は、吐出部の形状にパターニングできなかったことを意味する。また、硬化不十分のものは、ネガ型感光性樹脂が十分に硬化せず、基板からの剥離が見られた。
本実施例は異なるテーパー形状の吐出部とストレート形状の吐出部の形成のための露光に、それぞれ異なるマスクを用いて行う例である。
エポキシ樹脂:EHPE−3150(ダイセル化学(株)製) 100重量部
光カチオン重合開始剤:SP−172(旭電化工業(株)製) 2重量部
メチルイソブチルケトン 100重量部
上記のネガ型感光性樹脂Aを調合した。該樹脂Aを、基板上に10μm膜厚で成膜した状態におけるネガ型感光性樹脂層のUV吸収スペクトルを図11に示す。該ネガ型感光性樹脂は、370nmから短波長の領域に、光カチオン重合開始剤に由来する吸収を有している。
図9のような記録ヘッドを作成した。図9(a)は記録ヘッドを吐出口から基板に向かう方向に見た際の模式図であり、図9(b)は、図9(a)に示される記録ヘッドを、x−y線を通り基板に垂直な断面で切断した場合の断面を模式的に示した図である。以下に記録ヘッドの製造方法を説明する。
なお、本実施例においては、撥インク剤層の形成は省略した。
本実施例は、広帯域の光を照射する露光装置を用い、異なる波長領域の光を選択的に透過する複数種のフォトマスクを介して、複数回の露光を行う方法を用いてテーパー形状の吐出部とストレート形状の吐出部をつくりわける方法である。
以降には、図8(d)に示す工程以降の工程をしめす。
広帯域の光を照射する露光装置を用い、異なる波長領域の光を選択的に透過する複数種のバンドパスフィルターを具備するフォトマスクを介して露光を行う方法の例を説明する。
実施例7は、露光の結像位置を吐出部ごとに変化させることにより、テーパー形状とストレート形状を作り分ける方法である。
2 エネルギー発生素子
3 供給口
4 吐出口形成部材
5 吐出口
6 流路
7 吐出部
11 ネガ型感光性樹脂の層
Claims (6)
- 液体を吐出するために利用されるエネルギーを発生するエネルギー発生素子を有する基板と、前記エネルギー発生素子と対向する位置に設けられた液体の吐出口を有する吐出部と、を備える液体吐出ヘッドの製造方法において、
前記吐出部は、前記基板と成す角度が90°±2°である第一の吐出部と、該第一の吐出部が有する吐出口と異なる吐出口を有し、前記基板に平行な断面の断面積が前記基板側から前記吐出口側に向かうに従って小さくなる度合いが前記第一の吐出部よりも大きい、第二の吐出部と、を含み、
前記基板上に前記吐出口を形成する部材となるネガ型感光性樹脂の層を形成する工程と、
前記層をi線で第一のフォーカス量にて露光して前記第一の吐出部を形成する工程と、前記層をi線で前記第一のフォーカス量よりもデフォーカス量の大きい第二のフォーカス量にて露光して前記第二の吐出部を形成する工程と、
を有し、前記層は、365nmの光に対する吸光度が1μmあたり0.02以上0.07以下であり、前記ネガ型感光性樹脂は、ナフタレン骨格またはアントラセン骨格の少なくとも一方を有する多環式芳香族化合物を含有することを特徴とする液体吐出ヘッドの製造方法。 - 前記ネガ型感光性樹脂がエポキシ樹脂と、光カチオン重合開始剤と、を含有することを特徴とする請求項1に記載の液体吐出ヘッドの製造方法。
- 前記基板上に、前記吐出部と連通するインクの流路の型となるパターンを設ける工程を更に有し、
前記パターン上に前記ネガ型感光性樹脂の層が形成され、前記吐出部を形成した後、前記パターンを除去することを特徴とする請求項1または2に記載の液体吐出ヘッドの製造方法。 - 前記第二の吐出部が前記基板と成す角度は75°以上85°以下である請求項1乃至3のいずれか1項に記載の液体吐出ヘッドの製造方法。
- 前記第一の吐出部及び前記第二の吐出部の前記基板と垂直方向の高さは、3μm以上10μm以下である請求項1乃至4のいずれか1項に記載の液体吐出ヘッドの製造方法。
- 前記第一の吐出部及び前記第二の吐出部はフォトマスクを用いて形成し、前記第一の吐出部を形成する際に用いるフォトマスクと前記第二の吐出部を形成する際に用いるフォトマスクとは異なるものである請求項1乃至5のいずれか1項に記載の液体吐出ヘッドの製造方法。
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JP5506600B2 (ja) * | 2010-08-25 | 2014-05-28 | キヤノン株式会社 | 液体吐出ヘッドの製造方法 |
JP5065464B2 (ja) * | 2010-09-29 | 2012-10-31 | キヤノン株式会社 | 液体吐出ヘッドおよび液体吐出ヘッドの製造方法 |
US8652767B2 (en) * | 2011-02-28 | 2014-02-18 | Canon Kabushiki Kaisha | Liquid ejection head and process for producing the same |
CN103252997B (zh) * | 2012-02-16 | 2015-12-16 | 珠海纳思达珠海赛纳打印科技股份有限公司 | 一种液体喷头及其制造方法 |
JP6008556B2 (ja) * | 2012-04-25 | 2016-10-19 | キヤノン株式会社 | 液体吐出ヘッドの製造方法及び露光方法 |
JP6071560B2 (ja) | 2013-01-07 | 2017-02-01 | キヤノン株式会社 | 液体吐出ヘッドの製造方法 |
JP6071565B2 (ja) * | 2013-01-11 | 2017-02-01 | キヤノン株式会社 | 液体吐出ヘッドの製造方法 |
JP6180143B2 (ja) * | 2013-03-22 | 2017-08-16 | キヤノン株式会社 | 液体吐出ヘッドの製造方法 |
JP6193715B2 (ja) * | 2013-10-08 | 2017-09-06 | キヤノン株式会社 | 液体吐出ヘッド |
JP6341799B2 (ja) * | 2014-08-19 | 2018-06-13 | キヤノン株式会社 | 液体吐出ヘッドの製造方法 |
JP6632225B2 (ja) * | 2015-06-05 | 2020-01-22 | キヤノン株式会社 | 吐出口面の撥水処理方法 |
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JP3674885B2 (ja) * | 1996-08-07 | 2005-07-27 | コニカミノルタホールディングス株式会社 | インクジェット記録ヘッド |
US6379571B1 (en) | 1998-06-11 | 2002-04-30 | Canon Kabushiki Kaisha | Etching method for processing substrate, dry etching method for polyetheramide resin layer, production method of ink-jet printing head, ink-jet head and ink-jet printing apparatus |
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JP2004042389A (ja) | 2002-07-10 | 2004-02-12 | Canon Inc | 微細構造体の製造方法、液体吐出ヘッドの製造方法および液体吐出ヘッド |
JP4761498B2 (ja) * | 2004-06-28 | 2011-08-31 | キヤノン株式会社 | 感光性樹脂組成物、ならびにこれを用いた段差パターンの製造方法及びインクジェットヘッドの製造方法 |
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