Etching agent, an etching method and an etching agent preparation

    公开(公告)号:JP5344051B2

    公开(公告)日:2013-11-20

    申请号:JP2012003786

    申请日:2012-01-12

    IPC分类号: H01L21/306 C23F1/38

    摘要: The present invention is directed to provide an etching agent for a semiconductor substrate, which is capable of etching a tungsten (W)-based metal film on a semiconductor substrate and an etching method using relevant etching agent, and relates to a liquid for preparing the etching agent for a semiconductor substrate composed of a solution comprising (A) hydrogen peroxide, (B) a phosphonic acid chelating agent having a hydroxyl group and not having nitrogen atom, (C) a basic compound, and (D-2) 0.01 to 3 % by weight of two or more kinds of anion species other than phosphonic acid chelating agents having a hydroxyl group and not having nitrogen atom, in which anion species have no oxidizing power, an etching method characterized by etching a tungsten (W)-based metal film on a semiconductor substrate using relevant etching agent for a semiconductor substrate, further, a solution comprising (B) a phosphonic acid chelating agent having a hydroxyl group and not having nitrogen atom, (C) a basic compound, and (D-2) anion species other than phosphonic acid chelating agents having a hydroxyl group and not having a hydroxyl group, in which anion species have no oxidizing power.

    Temperature sensor and method of manufacturing the same
    3.
    发明专利
    Temperature sensor and method of manufacturing the same 有权
    温度传感器及其制造方法

    公开(公告)号:JP2013205319A

    公开(公告)日:2013-10-07

    申请号:JP2012076410

    申请日:2012-03-29

    摘要: PROBLEM TO BE SOLVED: To provide a temperature sensor which is hard to have high resistivity in an electrode structure for a thermistor material layer of TiAlN under high temperature environment, can be deposited directly on a film and the like without burning, and has high heat resistance and high reliability, and a method of manufacturing the same.SOLUTION: A temperature sensor includes an insulation base material 2, a thin film thermistor 3 formed on the insulation base material, and a pair of pattern electrodes 4 formed on the insulation base material so as to arrange a pair of counter electrodes 4a facing each other on the thin film thermistor. The thin film thermistor is formed of a thermistor material of TiAlN. The pattern electrode includes a joint layer 5 formed of TiN on the insulation base material, and an electrode layer 6 formed of noble metal on the joint layer.

    摘要翻译: 要解决的问题:为了提供在高温环境下的TiAlN的热敏电阻材料层的电极结构中难以具有高电阻率的温度传感器,可直接沉积在薄膜等上而不会燃烧,并具有高的热量 电阻和高可靠性及其制造方法。温度传感器包括绝缘基材2,形成在绝缘基材上的薄膜热敏电阻3和形成在绝缘基材上的一对图形电极4 以便在薄膜热敏电阻上设置彼此相对的一对对置电极4a。 薄膜热敏电阻由TiAlN的热敏电阻材料形成。 图案电极包括在绝缘基材上由TiN形成的接合层5和在接合层上由贵金属形成的电极层6。

    Etching agent, etching method, and etching agent preparation liquid
    10.
    发明专利
    Etching agent, etching method, and etching agent preparation liquid 有权
    蚀刻剂,蚀刻方法和蚀刻剂制剂液体

    公开(公告)号:JP2012080128A

    公开(公告)日:2012-04-19

    申请号:JP2012003786

    申请日:2012-01-12

    摘要: PROBLEM TO BE SOLVED: To provide an etching agent for a semiconductor substrate by which a tungsten(W)-system metal film on the semiconductor substrate can be etched, and to provide an etching method using the etching agent, and an etching agent preparation liquid.SOLUTION: An etching agent for a semiconductor substrate, on which a metal bump or a metal wire having a lower ionization tendency than that of tungsten is formed in an upper part of a tungsten(W)-system metal film, consists of a solution containing (A) hydrogen peroxide, (B) a phosphonic acid system chelate agent having a hydroxyl group, (C) a basic compound, and (D-2) 0.01 to 3 wt.% of two or more kinds of anion species selected from anion species derived from an inorganic acid, and anion species derived from an organic acid selected from a carbonate ion, a monocarboxylic acid ion, a hydroxytricarboxylic acid ion, and a hydroxycarboxylic acid ion. The etching agent is used in a method of etching the W-system metal film. An etching agent preparation liquid for a semiconductor substrate consists of a solution containing the above (B), (C), and (D-2).

    摘要翻译: 要解决的问题:为了提供半导体衬底的蚀刻剂,通过该蚀刻剂可以蚀刻半导体衬底上的钨(W)系金属膜,并提供使用蚀刻剂的蚀刻方法,以及蚀刻 药剂制剂液体。 解决方案:在钨(W)系金属膜的上部形成有用于半导体衬底的蚀刻剂,其上形成具有比钨低的电离倾向的金属凸块或金属线,由 含有(A)过氧化氢的溶液,(B)具有羟基的膦酸系螯合剂,(C)碱性化合物和(D-2)0.01〜3重量%的两种或更多种阴离子物质 选自衍生自无机酸的阴离子物质,以及衍生自选自碳酸根离子,单羧酸离子,羟基三羧酸离子和羟基羧酸离子的有机酸的阴离子物质。 蚀刻剂用于蚀刻W系金属膜的方法。 用于半导体衬底的蚀刻剂制备液由含有上述(B),(C)和(D-2)的溶液组成。 版权所有(C)2012,JPO&INPIT