SUBSTRATE STRUCTURE, MANUFACTURING METHOD FOR THE SAME, AND LIQUID DISCHARGE HEAD
To provide a substrate structure, a manufacturing method for the same and a liquid discharger head, which can suppress erosion of metal layers constituting a laminated film while suppressing a chip size from being enlarged.SOLUTION: A substrate structure comprises a substrate 1 and a laminated film...
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Zusammenfassung: | To provide a substrate structure, a manufacturing method for the same and a liquid discharger head, which can suppress erosion of metal layers constituting a laminated film while suppressing a chip size from being enlarged.SOLUTION: A substrate structure comprises a substrate 1 and a laminated film 2 constituted of a plurality of layers formed on the substrate 1. The plurality of layers constituting the laminates film 2 include a plurality of metal layers 6 and 7 being directly contacted and overlapped with each other and having ionization tendencies different from each other. In at least parts of the substrate 1 and the layers positioned below the metal layer 6 having a higher ionization tendency of the plurality of metal layers 6 and 7 in a lamination direction of the laminated film 2 are provided groove parts 8. The metal layer 6 having the higher ionization tendency has a part which is formed along an inner surface of the groove part 8 and is extended along a face direction of the substrate 1 and a part which is extended along the lamination direction inside the groove part.SELECTED DRAWING: Figure 2
【課題】チップサイズの大型化を抑制しつつ、積層膜を構成する金属層の侵食を抑制することが可能な、基板構造体とその製造方法と液体吐出ヘッドを提供する。【解決手段】基板構造体が、基板1と、基板1の上に設けられた複数の層からなる積層膜2とを有する。積層膜2を構成する複数の層には、互いに直接接して重なり合っておりイオン化傾向が互いに異なる複数の金属層6,7が含まれている。積層膜2の積層方向において複数の金属層6,7のうちイオン化傾向が高い金属層6の下方に位置する、基板1と層とのうちの少なくとも一部に、溝部8が設けられている。イオン化傾向が高い金属層6は、溝部8の内面に沿って形成されて、基板1の面方向に沿って延びる部分と、溝部の内部で積層方向に沿って延びる部分とを有している。【選択図】図2 |
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