Method of forming ferrite thin film and ferrite thin film obtained by the method
    2.
    发明专利
    Method of forming ferrite thin film and ferrite thin film obtained by the method 审中-公开
    形成薄膜薄膜和薄膜薄膜的方法

    公开(公告)号:JP2013203638A

    公开(公告)日:2013-10-07

    申请号:JP2012076987

    申请日:2012-03-29

    摘要: PROBLEM TO BE SOLVED: To provide a method of forming a ferrite thin film capable of producing a thick film having a film thickness of ≥1 μm using a sol-gel method without generating cracks.SOLUTION: There is provided a method of forming a ferrite thin film by carrying out a process for forming a coated film by coating a ferrite thin film-forming composition on a heat-resistant substrate and a process for calcining the coated film once or a plurality of times so that the thickness of the calcined film on the substrate becomes a desired thickness, and firing the calcined film formed on the substrate, in which the conditions for firing the calcined film formed on the substrate are under the normal atmosphere or an oxygen gas atmosphere or an inert gas atmosphere, a temperature-rise rate of 1-50°C/minute, a holding temperature of 500-800°C, and a holding time of 30-120 minutes.

    摘要翻译: 要解决的问题:提供一种形成能够使用溶胶 - 凝胶法生产膜厚度≥1μm的厚膜的铁氧体薄膜的方法,而不产生裂纹。提供一种形成铁氧体的方法 通过在耐热基材上涂布铁氧体薄膜形成组合物进行形成涂膜的工艺和一次或多次煅烧涂膜的方法,使煅烧薄膜的厚度在 基板成为期望的厚度,并且烧结形成在基板上的煅烧膜,其中在基板上形成的煅烧膜的烧成条件为正常气氛或氧气气氛或惰性气体气氛,温度升高 速率为1-50℃/分钟,保持温度为500-800℃,保持时间为30-120分钟。

    Oxide magnetic thin film, its manufacturing method, and electromagnetic interference suppressing body
    4.
    发明专利
    Oxide magnetic thin film, its manufacturing method, and electromagnetic interference suppressing body 审中-公开
    氧化物磁薄膜,其制造方法和电磁干扰抑制体

    公开(公告)号:JP2006283063A

    公开(公告)日:2006-10-19

    申请号:JP2005101622

    申请日:2005-03-31

    IPC分类号: C23C14/34 C23C14/06 H05K9/00

    摘要: PROBLEM TO BE SOLVED: To control the diameter of particle in an oxide magnetic thin film on the nano-level.
    SOLUTION: When depositing an oxide magnetic thin film on a substrate by sputtering, the diameter of oxide magnetic particles is controlled on the nano-level by controlling the temperature of the substrate in a predetermined range, and the oxide magnetic thin film is obtained, in which nano-particles of the desired grain size are present. In particular, by controlling the temperature of the substrate between 200 and 700°C by using a spinel-based ferrite sintered body target, the grain size can be controlled between several nm and tens of nm. The grain size-controlled ferrite thin film can be employed in the applications such as an electromagnetic interference suppressing body or the like for high frequency band.
    COPYRIGHT: (C)2007,JPO&INPIT

    摘要翻译: 要解决的问题:为了控制纳米级氧化物磁性薄膜中的颗粒的直径。 解决方案:当通过溅射在衬底上沉积氧化物磁性薄膜时,通过将衬底的温度控制在预定范围内,将氧化物磁性颗粒的直径控制在纳米级上,氧化物磁性薄膜是 其中存在所需粒度的纳米颗粒。 特别地,通过使用尖晶石型铁氧体烧结体靶,通过控制200〜700℃的基板温度,可以将晶粒尺寸控制在几nm〜数十nm。 晶粒尺寸控制的铁氧体薄膜可用于高频带等电磁干扰抑制体等的应用中。 版权所有(C)2007,JPO&INPIT

    Preparation of ferrite film
    5.
    发明专利
    Preparation of ferrite film 失效
    制备薄膜

    公开(公告)号:JPS59111929A

    公开(公告)日:1984-06-28

    申请号:JP21974182

    申请日:1982-12-15

    摘要: PURPOSE: To deposit a crystalline ferrite film on the surface of a solid, by adsorbing FeOH
    + , etc. to the surface of a solid in a liquid containing ferrous ion, oxidizing the FeOH
    + to FeOH
    2+ , and allowing the ferrite crystallization reaction between the metal hydroxide ion in the liquid.
    CONSTITUTION: FeOH
    + or FeOH
    + with other metal hydroxide ion are adsorbed uniformly to the surface of a solid such as a film in an aqueous solution containing ferrous ion taking advantage of the surface activity at the boundary between the solid and the aqueous solution. The FeOH
    + is oxidized to form a layer of FeOH
    2+ , and ferrite crystallization reaction is carried out between FeOH
    2+ and the metal hydroxide ion in the aqueous solution. A crystallized ferrite film having spinel structure can be deposited on the surface of a solid by this process without necessitating high-temperature heat-treatment. The process can be applied widely for the preparation of magnetic recording medium, magneto-optical element, etc.
    COPYRIGHT: (C)1984,JPO&Japio

    摘要翻译: 目的:在固体表面上沉积结晶铁素体膜,通过将FeOH +等吸附到含有亚铁离子的液体中的固体表面,将FeOH +氧化成FeOH 2+, 并允许液体中金属氢氧根离子之间的铁素体结晶反应。 构成:与其它金属氢氧根离子一起的FeOH +或FeOH +与含有亚铁离子的水溶液中的固体如膜的表面均匀地吸附,这取决于固体和 水溶液。 FeOH +被氧化形成一层FeOH 2+,在水溶液中FeOH 2+与金属氢氧根离子之间进行铁氧体结晶反应。 具有尖晶石结构的结晶铁素体膜可以通过该方法沉积在固体的表面上,而不需要进行高温热处理。 该方法可广泛用于制备磁记录介质,磁光元件等。

    Permanent magnet film
    9.
    发明专利

    公开(公告)号:JP4560619B2

    公开(公告)日:2010-10-13

    申请号:JP2003084710

    申请日:2003-03-26

    摘要: A method for producing a permanent magnet film having the performance capability as a permanent magnet, characterized in that it comprises converting a powder of a permanent magnet material to the form of an aerosol and spraying the aerosol to an article due to have the permanent magnet film thereon, to thereby form the permanent magnet film; and the above method, characterized in that the powder of a permanent magnet material comprises a magnet metal powder, a ferrite compound powder, a mixture of a magnet metal powder and a ferrite compound powder, a mixture of a magnet metal powder and a polymer material powder, a mixture of a ferrite compound powder and a polymer material powder, or a mixture of a magnet metal powder, a ferrite compound powder and a polymer material powder; and a permanent magnet film produced by the method. The method allows the production of a permanent magnet film having a thickness expected for a thin magnetic film in the near future and exhibiting high magnetic characteristics, with high efficiency at a low cost.