JP2019089259A - Memsデバイス、液体吐出ヘッド、および液体吐出装置 - Google Patents
Memsデバイス、液体吐出ヘッド、および液体吐出装置 Download PDFInfo
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- JP2019089259A JP2019089259A JP2017219720A JP2017219720A JP2019089259A JP 2019089259 A JP2019089259 A JP 2019089259A JP 2017219720 A JP2017219720 A JP 2017219720A JP 2017219720 A JP2017219720 A JP 2017219720A JP 2019089259 A JP2019089259 A JP 2019089259A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
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- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
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- B41J2/14233—Structure of print heads with piezoelectric elements of film type, deformed by bending and disposed on a diaphragm
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Abstract
Description
また、特許文献2に記載されているように、半導体基板と回路基板とを、接合した半導体装置が知られている。
従って、信頼性の高いMEMSデバイスを提供することができる。
従って、信頼性の高いMEMSデバイスを提供することができる。
従って、信頼性の高いMEMSデバイスを提供することができる。
従って、信頼性の高いMEMSデバイスを提供することができる。
従って、信頼性の高いMEMSデバイスを提供することができる。
従って、信頼性の高いMEMSデバイスを提供することができる。
従って、信頼性の高いMEMSデバイスを提供することができる。
図2は、本発明の実施形態1に係る液体吐出ヘッドの一例であるインクジェット式液体吐出ヘッドの分解斜視図であり、図3はインクジェット式液体吐出ヘッドの平面図(液体吐出面20a側の平面図)であり、図4は図3のA−A′線断面図であり、図5は図4の要部を拡大した断面図であり、図6は更に図5の要部を拡大した断面図であり、図7は図6のB−B′線断面図である。
なお、本実施形態では、X軸方向にて隣接する第1バンプ配線123a(第1の配線)と第1バンプ配線123b(第2の配線)との間の幅、およびX軸方向にて隣接する第1個別配線311a(第3の配線)と第1個別配線311b(第4の配線)との間の幅であるL1が、接着剤124に含まれる固形粒子の最大粒子径より広くなっている。
配線基板30と、第1コア部122と、第1バンプ配線123と、第1個別配線311とで囲まれる接合領域において、第2の方向の幅L1と、第1の方向の幅H3が接着剤124に含まれる固形粒子の最大粒子径よりも広くなるため、配線基板30と駆動回路120との接合にて接合領域に接着剤124を流動した際、接着剤124に含まれる硬化剤やフィラー等の固形粒子が接合領域に行き渡りやすくなり、接合領域において固形粒子が均一に分布する。これにより、基板同士の接合強度を向上することができる。なお、上述したMEMSデバイスの構成は、使用する接着剤124の接合時の流動性に合わせて適宜、設計する。
図8は、実施形態2に係る図6のB−B′線断面図である。本実施形態に係るインクジェット式液体吐出装置について、この図を参照して説明する。なお、実施形態1と同一の構成部位については、同一の番号を使用し、重複する説明は省略する。
なお、本実施形態では、X軸方向にて隣接する第1バンプ配線123a(第1の配線)と第1バンプ配線123b(第2の配線)との間の幅、およびX軸方向にて隣接する第1個別配線311a(第3の配線)と第1個別配線311b(第4の配線)との間の幅であるL1が、接着剤124に含まれる固形粒子の最大粒子径より広くなっている。
配線基板30と、第1コア部122と、第1バンプ配線123と、第1個別配線311とで囲まれる接合領域において、第2の方向の幅L1と、第1の方向の幅H6が接着剤124に含まれる固形粒子の最大粒子径よりも広くなるため、配線基板30と駆動回路120との接合にて接合領域に接着剤124を流動した際、接着剤124に含まれる硬化剤やフィラー等の固形粒子が接合領域に行き渡りやすくなり、接合領域において固形粒子が均一に分布する。これにより、基板同士の接合強度を向上することができる。なお、上述したMEMSデバイスの構成は、使用する接着剤124の接合時の流動性に合わせて適宜、設計する。
図9は、実施形態3に係る図6のB−B′線断面図である。本実施形態に係るインクジェット式液体吐出装置について、この図を参照して説明する。なお、実施形態1と同一の構成部位については、同一の番号を使用し、重複する説明は省略する。
なお、本実施形態では、X軸方向にて隣接する第1バンプ配線123a(第1の配線)と第1バンプ配線123b(第2の配線)との間の幅、およびX軸方向にて隣接する第1個別配線311a(第3の配線)と第1個別配線311b(第4の配線)との間の幅であるL1が、接着剤124に含まれる固形粒子の最大粒子径より広くなっている。
配線基板30と、第1コア部122と、第1バンプ配線123と、第1個別配線311とで囲まれる接合領域において、第2の方向の幅L1と、第1の方向の幅H9が接着剤124に含まれる固形粒子の最大粒子径よりも広くなるため、配線基板30と駆動回路120との接合にて接合領域に接着剤124を流動した際、接着剤124に含まれる硬化剤やフィラー等の固形粒子が接合領域に行き渡りやすくなり、接合領域において固形粒子が均一に分布する。これにより、基板同士の接合強度を向上することができる。なお、上述したMEMSデバイスの構成は、使用する接着剤124の接合時の流動性に合わせて適宜、設計する。
図10は実施形態4に係る図6の第1コア部122と、第1バンプ配線123とを、第1金属バンプ電極800(第1のバンプ、第2のバンプを含む複数のバンプ)に変更した断面図、図11は実施形態4に係る図10のC−C′線断面図である。本実施形態に係るインクジェット式液体吐出装置について、この図を参照して説明する。なお、実施形態1と同一の構成部位については、同一の番号を使用し、重複する説明は省略する。
なお、本実施形態では、X軸方向にて隣接する第1金属バンプ電極800a(第1のバンプ)と第1金属バンプ電極800b(第2のバンプ)との間の幅、およびX軸方向にて隣接する第1個別配線311a(第3の配線)と第1個別配線311b(第4の配線)との間の幅であるL2が、接着剤124に含まれる固形粒子の最大粒子径より広くなっている。
配線基板30と、駆動回路120と、第1金属バンプ電極800と、第1個別配線311とで囲まれる接合領域において、第2の方向の幅L2と、第1の方向の幅H12が接着剤124に含まれる固形粒子の最大粒子径よりも広くなるため、配線基板30と駆動回路120との接合にて接合領域に接着剤124を流動した際、接着剤124に含まれる硬化剤やフィラー等の固形粒子が接合領域に行き渡りやすくなり、接合領域において固形粒子が均一に分布する。これにより、基板同士の接合強度を向上することができる。なお、上述したMEMSデバイスの構成は、使用する接着剤124の接合時の流動性に合わせて適宜、設計する。
図12は、実施形態5に係る図10のC−C′線断面図である。本実施形態に係るインクジェット式液体吐出装置について、この図を参照して説明する。なお、実施形態1、実施形態4と同一の構成部位については、同一の番号を使用し、重複する説明は省略する。
なお、本実施形態では、X軸方向にて隣接する第1金属バンプ電極800a(第1のバンプ)と第1金属バンプ電極800b(第2のバンプ)との間の幅、およびX軸方向にて隣接する第1個別配線311a(第3の配線)と第1個別配線311b(第4の配線)との間の幅であるL2が、接着剤124に含まれる固形粒子の最大粒子径より広くなっている。
配線基板30と、駆動回路120と、第1金属バンプ電極800と、第1個別配線311とで囲まれる接合領域において、第2の方向の幅L2と、第1の方向の幅H15が接着剤124に含まれる固形粒子の最大粒子径よりも広くなるため、配線基板30と駆動回路120との接合にて接合領域に接着剤124を流動した際、接着剤124に含まれる硬化剤やフィラー等の固形粒子が接合領域に行き渡りやすくなり、接合領域において固形粒子が均一に分布する。これにより、基板同士の接合強度を向上することができる。
Claims (9)
- 第1の基板と、
前記第1の基板上に形成された樹脂と、
前記樹脂上に形成された、第1の配線と、第2の配線と、を含む複数の配線と、
前記複数の配線と接合される第2の基板と、
前記第2の基板上に形成された、第3の配線と、第4の配線と、を含む複数の配線と、
を備え、
前記第1の基板と前記第2の基板とは、接着剤を介して接合され、
前記第1の基板と前記第2の基板とは、前記第1の配線と前記第3の配線とを介して電気的に接続され、
前記第1の基板と前記第2の基板とは、前記第2の配線と前記第4の配線とを介して電気的に接続され、
前記接着剤は、固形粒子を含み、
前記樹脂と前記複数の配線が積層される方向である第1の方向において、前記樹脂と前記第2の基板との間の幅は、前記固形粒子の最大粒子径よりも広く、
前記第1の配線と前記第2の配線との間の幅、または前記第3の配線と前記第4の配線との間の幅は、前記固形粒子の最大粒子径よりも広い、
ことを特徴とするMEMSデバイス。 - 前記第1の方向における断面視において、前記第1の配線と前記第2の配線との間の領域の樹脂の膜厚は、前記第1の配線または前記第2の配線が形成された領域の樹脂の膜厚よりも薄い、
ことを特徴とする請求項1に記載のMEMSデバイス。 - 前記第1の配線および前記第2の配線の膜厚、または前記第3の配線および前記第4の配線の膜厚は、前記固形粒子の最大粒子径よりも厚い、
ことを特徴とする請求項1または請求項2に記載のMEMSデバイス。 - 前記第1の方向における断面視において、前記第3の配線と前記第4の配線との間の領域の前記第2の基板の厚みは、前記第3の配線または前記第4の配線が形成された領域の前記第2の基板の厚みよりも薄い、
ことを特徴とする請求項1〜3のいずれか1項に記載のMEMSデバイス。 - 第1の基板と、
前記第1の基板上に形成された、第1のバンプと、第2のバンプと、を含む複数のバンプと、
前記複数のバンプと接合される第2の基板と、
前記第2の基板上に形成された、第3の配線と、第4の配線と、を含む複数の配線と、
を備え、
前記第1の基板と前記第2の基板とは、接着剤を介して接合され、
前記第1の基板と前記第2の基板とは、前記第1のバンプと前記第3の配線とを介して電気的に接続され、
前記第1の基板と前記第2の基板とは、前記第2のバンプと前記第4の配線とを介して電気的に接続され、
前記接着剤は、固形粒子を含み、
前記第1の基板と前記第2の基板が積層される方向である第1の方向において、前記第1の基板と前記第2の基板との間の幅は、前記固形粒子の最大粒子径よりも広く、
前記第1のバンプと前記第2のバンプとの間の幅、または前記第3の配線と前記第4の配線との間の幅は、前記固形粒子の最大粒子径よりも広い、
ことを特徴とするMEMSデバイス。 - 前記第1のバンプおよび前記第2のバンプの膜厚、または前記第3の配線および前記第4の配線の膜厚は、前記固形粒子の最大粒子径よりも厚い、
ことを特徴とする請求項5に記載のMEMSデバイス。 - 前記第1の方向における断面視において、前記第1のバンプと前記第2のバンプとの間の領域の前記第2の基板の厚みは、前記第1のバンプまたは前記第2のバンプと接合する領域の前記第2の基板の厚みよりも薄い、
ことを特徴とする請求項5または請求項6に記載のMEMSデバイス。 - 請求項1〜7のいずれか1項に記載のMEMSデバイスを備える液体吐出ヘッド。
- 請求項8に記載の液体吐出ヘッドを備える液体吐出装置。
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