Exposure apparatus including an optical system for aligning a reticle
and a wafer
    34.
    发明授权
    Exposure apparatus including an optical system for aligning a reticle and a wafer 失效
    曝光装置包括用于对准掩模版和晶片的光学系统

    公开(公告)号:US4771180A

    公开(公告)日:1988-09-13

    申请号:US916738

    申请日:1986-10-08

    IPC分类号: G03F9/00 G01N21/86

    CPC分类号: G03F9/7049

    摘要: A reduction projection type alignment and exposure apparatus having a light source, for alignment, a reticle having at least a first grating, first lens system, a spatial filter disposed around a Fourier spectral plane of the first lens system, second lens system, a wafer having at least a second grating, and a photo-detector for detecting light intensity of superimposed beams appearing on the spatial filter. An optical system for light exposure is provided separately from the optical system for alignment which includes the light source for alignment, first and second lens system, spatial filter, etc. The light beam generated from the light source for alignment is applied to the reticle at which it is divided into a plurality of difracted light beams by the first grating, and the diffracted light beams are applied through the first lens system, spatial filter and second lens system onto the wafer so that the diffracted light beams are re-diffracted by the second grating, and the re-diffracted light beams are superimposed with the diffracted light beams and the light intensity of the superimposed beams detected by the photo-detector.

    摘要翻译: 一种缩小投影型对准和曝光装置,具有用于对准的光源,具有至少第一光栅的掩模版,第一透镜系统,设置在第一透镜系统的傅立叶光谱平面附近的空间滤光器,第二透镜系统,晶片 具有至少第二光栅,以及用于检测出现在空间滤光片上的叠加光束的光强度的光检测器。 与用于对准的光学系统分开设置用于曝光的光学系统,其包括用于对准的光源,第一和第二透镜系统,空间滤光器等。从用于对准的光源产生的光束被施加到掩模版 将其通过第一光栅分割为多个衍射光束,并且将衍射光束通过第一透镜系统,空间滤光器和第二透镜系统施加到晶片上,使得衍射光束被衍射的光束 并且再衍射光束与衍射光束叠加,并且由光检测器检测到的叠加光束的光强度。

    Thin film magnetic head and method of making it
    35.
    发明授权
    Thin film magnetic head and method of making it 失效
    薄膜磁头及其制作方法

    公开(公告)号:US4422117A

    公开(公告)日:1983-12-20

    申请号:US254662

    申请日:1981-04-16

    摘要: A thin film magnetic head has a substrate with thin film layers deposited thereon and a protector layer bonded by a bonding layer to the substrate, with the thin film layers interposed therebetween. The thin film layers includes components of an electromagnetic transducing means. The bonding layer is a glass having a working temperature at which a magnetic layer included in the thin film layers does not have the magnetic characteristics deteriorated to any substantial degree.The fusing of the glass for making the bonding layer is performed at a temperature below 450.degree. C.

    摘要翻译: 薄膜磁头具有沉积有薄膜层的基板和通过粘结层粘合到基板上的保护层,其间插入有薄膜层。 薄膜层包括电磁换能装置的部件。 接合层是具有工作温度的玻璃,其中包括在薄膜层中的磁性层的磁特性不会在任何程度上劣化。 用于制造粘合层的玻璃的熔合在450℃以下进行。

    Magnetic head arrangement
    36.
    发明授权
    Magnetic head arrangement 失效
    磁头布置

    公开(公告)号:US4409632A

    公开(公告)日:1983-10-11

    申请号:US208480

    申请日:1980-11-19

    IPC分类号: G11B5/31 G11B5/20 G11B5/22

    CPC分类号: G11B5/313

    摘要: A magnetic head arrangement includes a spiral coil made of a thin layer and having a central opening. The spiral coil is deposited on a first layer of magnetic material in an electrically insulated manner. The arrangement further includes a second layer of magnetic material having a width wider than that of the central opening of the spiral coil and deposited on the spiral coil in an electrically insulated manner. A portion of the second layer located in the central opening of the spiral coil is magnetically connected with the first layer and another portion of the second layer located outside the spiral coil is held above the first layer to form a predetermined gap.

    摘要翻译: 磁头装置包括由薄层制成并具有中心开口的螺旋线圈。 螺旋线圈以电绝缘方式沉积在第一层磁性材料上。 该装置还包括第二层磁性材料,其宽度大于螺旋线圈中心开口的宽度,并以电绝缘方式沉积在螺旋线圈上。 位于螺旋线圈的中心开口中的第二层的一部分与第一层磁性连接,位于螺旋线圈外部的第二层的另一部分被保持在第一层上方以形成预定间隙。

    Thin film magnetic head and method for manufacturing the same
    37.
    发明授权
    Thin film magnetic head and method for manufacturing the same 失效
    薄膜磁头及其制造方法

    公开(公告)号:US4246620A

    公开(公告)日:1981-01-20

    申请号:US8335

    申请日:1979-01-31

    摘要: A thin film magnetic head having a contact surface which, when such magnetic head is in use, slidingly contacts a magnetic information carrier, such as a magnetic tape, drum or disc, for the information recording or reproduction. The magnetic head comprises a support substrate on which a thin magnetic layer and a non-magnetic layer are deposited in side-by-side relation to each other. The non-magnetic insulating layer has a wear resistance equal to or higher than that of the thin magnetic layer. A method for the manufacture of the thin film magnetic head is also disclosed.

    摘要翻译: 一种具有接触表面的薄膜磁头,当这种磁头在使用中时,它可滑动地接触诸如磁带,鼓或盘之类的磁信息载体,用于信息记录或再现。 磁头包括支撑基板,薄壁磁性层和非磁性层彼此并排地沉积在支撑基板上。 非磁性绝缘层的耐磨性等于或高于薄磁性层的耐磨性。 还公开了制造薄膜磁头的方法。

    Magnetic head and method of making the same
    38.
    发明授权
    Magnetic head and method of making the same 失效
    磁头及其制作方法

    公开(公告)号:US4127884A

    公开(公告)日:1978-11-28

    申请号:US782247

    申请日:1977-03-28

    摘要: A thin film type magnetic head, in which a conductor is accommodated within a groove formed in part of a ferromagnetic substrate constituting part of a magnetic core, and a ferromagnetic film is disposed on the conductor to constitute part of the magnetic core. With this structure, it is possible to reduce the number of steps of layers constituting the magnetic head for reducing damage or breakage of the stepped portions of the layers and also increase the core gap in a central part of the core so as to reduce leakage flux even in the thin film magnetic head as well as bettering dissipation of Joule heat produced in the conductor.

    摘要翻译: 导体容纳在形成在构成磁芯的一部分的铁磁性基板的一部分的槽内的铁磁型磁头和铁磁性膜,构成磁芯的一部分。 利用这种结构,可以减少构成磁头的层数,以减少层的阶梯部分的损伤或断裂,并且还增加芯的中心部分的芯间隙,以便减少漏磁通 即使在薄膜磁头中,以及导体中产生的焦耳热的消散也更好。

    Narrow track MR head with side shields
    39.
    发明授权
    Narrow track MR head with side shields 失效
    窄轨MR头与侧面屏蔽

    公开(公告)号:US4071868A

    公开(公告)日:1978-01-31

    申请号:US641185

    申请日:1975-12-16

    CPC分类号: G11B5/3903 G11B5/11

    摘要: A magnetic head consists of a magnetic flux converging core having a magnetic gap and a magnetoresistive effect element which forms a magnetic circuit and which is arranged in the same plane as the magnetic gap. The direction of thickness of the magnetic circuit is aligned with the direction of width of a track of a record medium, and shielding plates of ferromagnetic material are arranged on both sides of the plane.

    摘要翻译: 磁头由具有磁隙的磁通收敛芯和磁阻效应元件组成,磁阻效应元件形成磁路并且被布置在与磁隙相同的平面中。 磁路的厚度方向与记录介质的轨道的宽度方向一致,铁磁材料的屏蔽板布置在平面的两侧。

    Multi-element magnetic head
    40.
    发明授权
    Multi-element magnetic head 失效
    多元素磁头

    公开(公告)号:US4065797A

    公开(公告)日:1977-12-27

    申请号:US641224

    申请日:1975-12-16

    摘要: A multi-element made magnetic head having a plurality of magnetoresistive elements of a ferromagnetic material such as permalloy formed on a base of a ferromagnetic material such as ferrite is disclosed. The ferromagnetic material base is formed with a groove, which is common for all elements made extends parallel to the recording medium. It is filled with a non-magentic material such as glass, and the individual magnetoresistive elements are disposed so as to bridge the groove and are not adapted to be in direct frictional contact with the recording medium for reducing their wear. The magnetoresistive elements are also made to extend perpendicular to the recording medium so as to increase the head density or reduce the head pitch.

    摘要翻译: 公开了一种多元素制造的磁头,其具有形成在诸如铁氧体的铁磁材料的基底上的诸如坡莫合金的铁磁材料的多个磁阻元件。 铁磁材料基底形成有凹槽,所述凹槽对于与记录介质平行延伸的所有元件是常见的。 它填充有诸如玻璃之类的非磁性材料,并且各个磁阻元件设置成桥接沟槽,并且不适于与记录介质直接摩擦接触以减少其磨损。 磁阻元件也被制成垂直于记录介质延伸,以增加磁头密度或降低磁头间距。