公开(公告)号：US4843486A

公开(公告)日：1989-06-27

申请号：US33733

申请日：1987-04-03

申请人： Toshikane Yoshimatsu ,  Yoshiki Hagiwara ,  Yoshikazu Tsuji ,  Kazuhiro Momata

发明人： Toshikane Yoshimatsu ,  Yoshiki Hagiwara ,  Yoshikazu Tsuji ,  Kazuhiro Momata

IPC分类号： G11B5/127 ,  G11B5/133 ,  G11B5/17 ,  G11B5/29

CPC分类号： G11B5/17 ,  G11B5/295 ,  Y10T29/49048 ,  Y10T29/49053 ,  Y10T29/49055

摘要： A method of fabricating a multi-element magnetic head core is provided in which a plurality of first grooves are formed in a surface of a magnetic block to form a plurality of magnetic circuits, a plurality of second grooves are formed in this surface in directions perpendicular to the first grooves to separate the magnetic circuits from each other, the first and second grooves are filled with a non-magnetic material, the magnetic block is then cut along lines parallel to the second grooves to obtain a plurality of core blocks, and a third groove is formed in each core block from a side wall thereof to isolate the magnetic circuits completely from each other. According to this method, the number of fabrication steps required for forming a multi-element magnetic head core can be reduced, and moreover a multiplicity of magnetic head cores can be formed at the same time.

摘要翻译： 提供了一种制造多元件磁头芯的方法，其中在磁块的表面中形成多个第一凹槽以形成多个磁路，在该表面上沿垂直于垂直方向的方向形成多个第二凹槽 到第一沟槽以将磁路彼此分离，第一和第二沟槽被非磁性材料填充，然后沿着平行于第二槽的线切割磁性块，以获得多个芯块，并且 在每个芯块中从其侧壁形成第三槽，以将磁路彼此完全隔离。 根据该方法，可以减少形成多元件磁头磁芯所需的制造步骤的数量，此外可以同时形成多个磁头磁芯。

公开(公告)号：US5349745A

公开(公告)日：1994-09-27

申请号：US69586

申请日：1993-06-01

申请人： Takashi Kawabe ,  Eiji Ashida ,  Moriaki Fuyama ,  Tadayuki Iwakura ,  Hiroshi Fukui ,  Yoshikazu Tsuji ,  Shunichiro Kuwatsuka ,  Harunobu Saito ,  Yoshiki Hagiwara ,  Issei Takemoto ,  Masayasu Fujisawa

发明人： Takashi Kawabe ,  Eiji Ashida ,  Moriaki Fuyama ,  Tadayuki Iwakura ,  Hiroshi Fukui ,  Yoshikazu Tsuji ,  Shunichiro Kuwatsuka ,  Harunobu Saito ,  Yoshiki Hagiwara ,  Issei Takemoto ,  Masayasu Fujisawa

IPC分类号： G11B5/31 ,  G11B5/42

CPC分类号： G11B5/3116 ,  G11B5/3163 ,  Y10T29/49052

摘要： A method of fabricating a thin-film magnetic in which a mask pattern in etching a bottom pole is formed of first and second mask films in this order when viewed from the bottom pole, the first mask film is used for defining, by self-alignment, the length of that portion of the side edge of a top pole which is nearly perpendicular to a magnetic gap, the second mask film makes it possible to etch the bottom pole with high dimensional accuracy, a non-magnetic film is formed on the mask pattern having the bottom pole thereunder and the exposed region of a substrate, and the top pole is formed after the mask pattern has been exposed and removed.

摘要翻译： 一种制造薄膜磁性的方法，其中当从底极观察时，其中蚀刻底极中的掩模图案依次由第一和第二掩模膜形成，第一掩模膜用于通过自对准 ，几乎垂直于磁隙的顶极的侧边缘部分的长度，第二掩模膜使得可以以高尺寸精度蚀刻底极，在掩模上形成非磁性膜 具有底极的图案和基板的曝光区域，并且在掩模图案被曝光和去除之后形成顶极。

公开(公告)号：US5567333A

公开(公告)日：1996-10-22

申请号：US263915

申请日：1994-06-22

申请人： Yasuo Hira ,  Tamaki Toba ,  Hirotaka Imayama ,  Atsuko Ohkawa ,  Masayasu Fujisawa ,  Kazuo Nate ,  Hideki Sonobe ,  Saburo Suzuki ,  Eisei Togawa ,  Hiroshi Ishizaki ,  Yoshiki Hagiwara

发明人： Yasuo Hira ,  Tamaki Toba ,  Hirotaka Imayama ,  Atsuko Ohkawa ,  Masayasu Fujisawa ,  Kazuo Nate ,  Hideki Sonobe ,  Saburo Suzuki ,  Eisei Togawa ,  Hiroshi Ishizaki ,  Yoshiki Hagiwara

IPC分类号： B23K15/00 ,  C23F4/00 ,  G11B5/31 ,  G11B5/60 ,  H01L21/302 ,  H01L21/3065 ,  B44C1/22

CPC分类号： G11B5/3106 ,  G11B5/60 ,  G11B5/6005 ,  G11B5/3163

摘要： A magnetic head element has one or more rails formed on the surface thereof. Each rail is formed so as to have a tapered angle of 55.degree.-85.degree.. To form such a rail, ion milling is conducted; the rail substrate used is allowed to have an inclination angle to 15.degree.-60.degree. and is rotated; and there is used, as the ion milling gas, a fluorinated hydrocarbon (e.g. CH.sub.2 FCF.sub.3) gas alone or a mixed gas of said fluorinated hydrocarbon gas and Ar, SF.sub.6 or the like. Accordingly, a magnetic head rail shape gives a small variation in flying height between magnetic head and magnetic disc.

摘要翻译： 磁头元件具有形成在其表面上的一个或多个轨道。 每个轨道形成为具有55°-85°的锥角。 为了形成轨道，进行离子铣削; 所使用的轨道基板允许倾斜角度为15°-60°并旋转; 并且作为离子研磨气体使用单独的氟化烃（例如CH 2 CF 3）气体或者所述氟化烃气体与Ar，SF 6等的混合气体。 因此，磁头轨道形状在磁头和磁盘之间的飞行高度变化很小。

公开(公告)号：US06198601B1

公开(公告)日：2001-03-06

申请号：US09268711

申请日：1999-03-16

申请人： Yasuo Hira ,  Tamaki Toba ,  Hirotaka Imayama ,  Atsuko Ohkawa ,  Masayasu Fujisawa ,  Kazuo Nate ,  Hideki Sonobe ,  Saburo Suzuki ,  Eisei Togawa ,  Hiroshi Ishizaki ,  Yoshiki Hagiwara

发明人： Yasuo Hira ,  Tamaki Toba ,  Hirotaka Imayama ,  Atsuko Ohkawa ,  Masayasu Fujisawa ,  Kazuo Nate ,  Hideki Sonobe ,  Saburo Suzuki ,  Eisei Togawa ,  Hiroshi Ishizaki ,  Yoshiki Hagiwara

IPC分类号： G11B560

CPC分类号： G11B5/3106 ,  G11B5/3163 ,  G11B5/60 ,  G11B5/6005

摘要： A magnetic head element has one or more rails formed on the surface thereof. Each rail is formed so as to have a tapered angle of 55-85°. To form such a rail, ion milling is conducted; the rail substrate used is allowed to have an inclination angle to 15-60° and is rotated; and there is used, as the ion milling gas, a fluorinated hydrocarbon (e.g., CH2FCF3) gas alone or a mixed gas of said fluorinated hydrocarbon gas and Ar, SF6 or the like. Accordingly, a magnetic head rail shape gives a small variation in flying height between magnetic bead and magnetic disc.

摘要翻译： 磁头元件具有形成在其表面上的一个或多个轨道。 每个轨道形成为具有55-85°的锥角。 为了形成轨道，进行离子铣削; 所使用的轨道基板允许具有15-60°的倾斜角并旋转; 作为离子研磨气体使用单独的氟化烃（例如CH 2 CF 3）或所述氟化烃气体与Ar，SF 6等的混合气体。 因此，磁头轨道形状在磁珠和磁盘之间的飞行高度变化很小。

公开(公告)号：US5560743A

公开(公告)日：1996-10-01

申请号：US26770

申请日：1993-03-05

申请人： Hirotaka Imayama ,  Katsuya Fukasawa ,  Masayasu Fujisawa ,  Yoshiki Hagiwara

发明人： Hirotaka Imayama ,  Katsuya Fukasawa ,  Masayasu Fujisawa ,  Yoshiki Hagiwara

IPC分类号： B08B5/02 ,  B24C1/04 ,  B24C3/12 ,  B24C3/22 ,  B24C9/00 ,  B24C3/04

CPC分类号： B08B5/02 ,  B24C1/04 ,  B24C3/22 ,  B24C9/003

摘要： A fine grain milling method which mixes powder into a high-pressure fluid, and injects the mixture to a workpiece covered with a mask or pattern to process the workpiece to a desired shape. Another high-pressure fluid is injected to remove the powder adhering to the workpiece thereby enabling an accurate transfer of the mask or pattern to the workpiece.

摘要翻译： 一种细粉研磨方法，将粉末混合到高压流体中，并将​​混合物注入覆盖有掩模或图案的工件上，以将工件加工成所需的形状。 注入另一高压流体以除去附着在工件上的粉末，从而能够将掩模或图案精确地传递到工件。

公开(公告)号：US5947796A

公开(公告)日：1999-09-07

申请号：US561256

申请日：1995-11-21

申请人： Hirotaka Imayama ,  Katsuya Fukasawa ,  Masayasu Fujisawa ,  Yoshiki Hagiwara

发明人： Hirotaka Imayama ,  Katsuya Fukasawa ,  Masayasu Fujisawa ,  Yoshiki Hagiwara

IPC分类号： B08B5/02 ,  B24C1/04 ,  B24C3/12 ,  B24C3/22 ,  B24C9/00

CPC分类号： B08B5/02 ,  B24C1/04 ,  B24C3/22 ,  B24C9/003

摘要： A fine grain milling method mixes powder into a high-pressure fluid, and injects the mixture to a work material covered with a mask to form the work material to a desired shape. In addition, the method injects anther high-pressure fluid to the powder adhered to the work material to remove the powder. The method can accurately transfer the mask pattern to the work material.

摘要翻译： 细粒磨法将粉末混合到高压流体中，并将​​混合物注入覆盖有掩模的工作材料，以将工件材料形成所需的形状。 此外，该方法将另外的高压流体注入附着在工件上的粉末以除去粉末。 该方法可以将掩模图案精确地转移到工件上。

公开(公告)号：US5910864A

公开(公告)日：1999-06-08

申请号：US773783

申请日：1996-10-22

申请人： Yasuo Hira ,  Tamaki Toba ,  Hirotaka Imayama ,  Atsuko Ohkawa ,  Masayasu Fujisawa ,  Kazuo Nate ,  Hideki Sonobe ,  Saburo Suzuki ,  Eisei Togawa ,  Hiroshi Ishizaki ,  Yoshiki Hagiwara

发明人： Yasuo Hira ,  Tamaki Toba ,  Hirotaka Imayama ,  Atsuko Ohkawa ,  Masayasu Fujisawa ,  Kazuo Nate ,  Hideki Sonobe ,  Saburo Suzuki ,  Eisei Togawa ,  Hiroshi Ishizaki ,  Yoshiki Hagiwara

IPC分类号： B23K15/00 ,  C23F4/00 ,  G11B5/31 ,  G11B5/60 ,  H01L21/302 ,  H01L21/3065

CPC分类号： G11B5/3106 ,  G11B5/60 ,  G11B5/6005 ,  G11B5/3163

摘要： A magnetic head element has one or more rails formed on the surface thereof. Each rail is formed so as to have a tapered angle of 55-85.degree.. To form such a rail, ion milling is conducted; the rail substrate used is allowed to have an inclination angle to 15-60.degree. and is rotated; and there is used, as the ion milling gas, a fluorinated hydrocarbon (e.g., CH.sub.2 FCF.sub.3) gas alone or a mixed gas of said fluorinated hydrocarbon gas and Ar, SF.sub.6 or the like. Accordingly, a magnetic head rail shape gives a small variation in flying height between magnetic head and magnetic disc.

摘要翻译： 磁头元件具有形成在其表面上的一个或多个轨道。 每个轨道形成为具有55-85°的锥角。 为了形成轨道，进行离子铣削; 所使用的轨道基板允许倾斜角度为15-60°并旋转; 作为离子研磨气体使用单独的氟化烃（例如CH 2 CF 3）或所述氟化烃气体与Ar，SF 6等的混合气体。 因此，磁头轨道形状在磁头和磁盘之间的飞行高度变化很小。

公开(公告)号：US5687045A

公开(公告)日：1997-11-11

申请号：US554027

申请日：1995-11-06

申请人： Tetsuya Okai ,  Moriaki Fuyama ,  Akira Onuma ,  Eiji Ashida ,  Hiroshi Ikeda ,  Saburo Suzuki ,  Yasuo Wakaki ,  Yoshiki Hagiwara ,  Eimi Ando

发明人： Tetsuya Okai ,  Moriaki Fuyama ,  Akira Onuma ,  Eiji Ashida ,  Hiroshi Ikeda ,  Saburo Suzuki ,  Yasuo Wakaki ,  Yoshiki Hagiwara ,  Eimi Ando

IPC分类号： G11B5/31 ,  G11B5/60 ,  G11B5/235

CPC分类号： G11B5/6005 ,  G11B5/3106 ,  G11B5/3109 ,  G11B5/3116 ,  G11B5/3163

摘要： A thin film magnetic head comprising a sintered ceramic substrate, an underlayer, a bottom magnetic core film, a magnetic gap film, an insulating film containing coil windings, a top magnetic core film, and a protective layer. The substrate and other films and layers form an air bearing surface. The under layer, the magnetic gap film and the protective layer comprise Al.sub.2 O.sub.3, and the bottom and the top magnetic core films comprise Ni--Fe alloy. This structure gives substantially the same etching rate, when the air bearing surface is polished using a working fluid of pH 6-8, for any of the substrate, the films comprising Al.sub.2 O.sub.3 and metal oxide described above, and the films of Ni--Fe alloy. Thus, steps (pole top recessions) on the air bearing surface can be made as small as 0.015 .mu.m or less. Accordingly, the magnetic head can be held in a stable attitude, thus obtaining good recording characteristics.

摘要翻译： 一种薄膜磁头，包括烧结陶瓷衬底，底层，底部磁芯膜，磁隙膜，含有线圈绕组的绝缘膜，顶部磁芯膜和保护层。 衬底和其它膜和层形成空气轴承表面。 底层，磁隙膜和保护层包括Al2O3，底部和顶部磁芯膜包括Ni-Fe合金。 当使用pH6-8的工作流体对任何基板，包含上述Al 2 O 3和金属氧化物的膜以及Ni-Fe合金膜进行抛光时，该结构基本上具有相同的蚀刻速率 。 因此，空气轴承表面上的台阶（极顶部凹陷）可以制成小至0.015μm或更小。 因此，可以将磁头保持在稳定的姿态，从而获得良好的记录特性。

公开(公告)号：US4967299A

公开(公告)日：1990-10-30

申请号：US210670

申请日：1988-06-23

申请人： Takahiro Katoh ,  Tooru Takeura ,  Masayoshi Waki ,  Yoshiki Hagiwara ,  Kazuyoshi Adachi

发明人： Takahiro Katoh ,  Tooru Takeura ,  Masayoshi Waki ,  Yoshiki Hagiwara ,  Kazuyoshi Adachi

IPC分类号： G11B5/31 ,  G11B5/39

CPC分类号： G11B5/3163 ,  G11B5/3103

摘要： A thin-film magnetic head has a first ferrite block on which a plurality of transducing elements are aligned on a predetermined surface, and a second ferrite block bonded to the first ferrite block, and has multi-track capabilities in accordance with the transducing elements. Eithr bonding surface of the first and second ferrite block is formed with an insulating film layer, the entire bonding surface is coated with an adhesive or formed with a plurality of recesses to be externally filled with the adhesive, and the adhesive is filled in gaps defined by the recesses and the surface of the opposed ferrite block. Thus, since the bonding portions of the first and second ferrite blocks are distributed over a wide region, the bonding strength can be largely increased, the transducing gap lengths are uniformly maintained, and the transducing element characteristic is not affected by the aging of the adhesive thereby improving the reliability of the magnetic head.

摘要翻译： 薄膜磁头具有第一铁氧体块，多个转换元件在其上定位在预定表面上，第二铁氧体块结合到第一铁氧体块，并且具有根据换能元件的多轨能力。 第一和第二铁氧体块的Eithr接合面由绝缘膜层形成，整个接合表面涂覆有粘合剂或形成有多个凹部以被外部填充有粘合剂，并且粘合剂填充有限定的间隙 通过相对的铁氧体块的凹部和表面。 因此，由于第一和第二铁氧体块的接合部分分布在宽的区域上，因此可以大大提高接合强度，均匀地保持换能间隙长度，并且转换元件特性不受粘合剂老化的影响 从而提高磁头的可靠性。