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    • 7. 发明公开
    • 몰리브덴 금속막 식각액 조성물
    • 用于蚀刻钼金属层的蚀刻组合物
    • KR1020140019991A
    • 2014-02-18
    • KR1020120086244
    • 2012-08-07
    • 주식회사 동진쎄미켐
    • 신현철서원국김규포한승연조삼영이기범
    • C23F1/30C23F1/44
    • C23F1/26C23F1/02
    • Disclosed in the present invention are an etchant composition which can perform selective etching on a molybdenum metal film when forming an integrated circuit including the molybdenum metal film and an oxide semiconductor active area, and a selective etching method for a molybdenum metal film. The etchant composition for a molybdenum metal film comprises: 5-25 weight% of hydrogen peroxide; 0.01-2 weight% of a fluoride; 0.01-1 weight% of (Tetramethylammonium Hydroxide); and the remaining water. The selective etching method for a molybdenum metal film comprises: a step of forming a molybdenum metal film as a source-drain electrode film and forming an electrical wiring using an oxide semiconductor between the source-drain electrode film; and a step of making an etchant composition for a molybdenum metal film, which includes 5-25 weight% of hydrogen peroxide, 0.01-2 weight% of a fluoride, 0.01-1 weight% of (Tetramethylammonium Hydroxide), and the remaining water, be in contact with the molybdenum metal film and the oxide semiconductor active area. [Reference numerals] (AA) Example 1; (BB) Example 2; (CC) Example 3; (DD) Example 4; (EE) Example 5; (FF) Example 6; (GG) Example 7
    • 在本发明中公开了一种蚀刻剂组合物,当形成包括钼金属膜和氧化物半导体有源区的集成电路以及钼金属膜的选择性蚀刻方法时,可以对钼金属膜进行选择性蚀刻。 用于钼金属膜的蚀刻剂组合物包括:5-25重量%的过氧化氢; 0.01-2重量%的氟化物; 0.01-1重量%(四甲基氢氧化铵); 和剩余的水。 钼金属膜的选择性蚀刻方法包括:形成钼金属膜作为源极 - 漏极电极膜并在源 - 漏电极膜之间使用氧化物半导体形成电布线的步骤; 以及制备钼金属膜的蚀刻剂组合物的步骤,其包括5-25重量%的过氧化氢,0.01-2重量%的氟化物,0.01-1重量%的(四甲基氢氧化铵),剩余的水, 与钼金属膜和氧化物半导体有源区接触。 (标号)(AA)实施例1; (BB)实施例2; (CC)实施例3; (DD)实施例4 (EE)实施例5; (FF)实施例6; (GG)实施例7