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    • 4. 发明授权
    • Substrate, liquid crystal display having the substrate, and method for producing substrate
    • 基板,具有该基板的液晶显示器及其制造方法
    • US07476936B2
    • 2009-01-13
    • US10511427
    • 2003-04-14
    • Masafumi KokuraYoshiharu Kataoka
    • Masafumi KokuraYoshiharu Kataoka
    • H01L27/12
    • H01L29/66765G02F1/136227G02F2001/13629H01L29/458
    • The substrate (10) of the present invention includes: a first electrode (26) and a second electrode (30). The second electrode (30) is formed on an insulation film (52) covering at least a part of the first electrode (26) and electrically connected with the first electrode (26) through a contact hole (50) formed in the insulation film (52). The first electrode (26) includes a laminated structure of a metal film (42) and a protective film (44). An etching rate of the metal film (42) is almost equal to an etching rate of the protective film (44) with respect to a first etching for forming the metal film (42) and the protective film (44). An etching rate of the protective film (44) is almost zero with respect to a second etching for forming the contact hole (50).
    • 本发明的基板(10)包括:第一电极(26)和第二电极(30)。 第二电极(30)形成在覆盖第一电极(26)的至少一部分的绝缘膜(52)上,并通过形成在绝缘膜(26)中的接触孔(50)与第一电极 52)。 第一电极(26)包括金属膜(42)和保护膜(44)的叠层结构。 相对于用于形成金属膜(42)和保护膜(44)的第一蚀刻,金属膜(42)的蚀刻速率几乎等于保护膜(44)的蚀刻速率。 相对于用于形成接触孔(50)的第二蚀刻,保护膜(44)的蚀刻速率几乎为零。