公开(公告)号：EP0082959A3

公开(公告)日：1983-10-26

申请号：EP82110827

申请日：1982-11-23

Applicant: International Business Machines Corporation

Inventor： Holecek, Joseph James

IPC: G11B05/42 ,  G11B21/16

CPC classification number: G11B21/16 ,  G11B21/24 ,  Y10T29/4903

Abstract: A transducer-carriage assembly (10, 16) is shown which includes an intermediate adapter (18) that enables the subassembly to be fabricated in a manner that eliminates the effect oftolerances in the component parts, prior to incorporation into the final assembly, with respect to penetration, pitch and roll of the transducer.

公开(公告)号：EP0030625A3

公开(公告)日：1981-08-26

申请号：EP80107023

申请日：1980-11-14

Applicant: International Business Machines Corporation

Inventor： Argumedo, Armando Jesus ,  Brock, George William ,  Losee, Paul Dee

IPC: G11B05/14 ,  G11B05/42 ,  G11B05/60

CPC classification number: G11B5/255 ,  G11B5/1335 ,  G11B5/193 ,  Y10T29/49041 ,  Y10T29/49055 ,  Y10T29/49057

Abstract: A magnetic head assembly includes a ferrite core (10) sandwiched between two ceramic layers (12, 14). Alumina films (11, 13, 15, 17) are deposited by sputtering on the sides of the ferrite core and on the ceramic layers in one embodiment, and on the ferrite core only in another embodiment, which are then bonded to form an integral head assembly. Slots (20, 22, 24, 26) to provide flying height control are formed in the air bearing surface of the ceramic layers. The process of making the assembly includes the steps of sputter etching the ferrite and ceramic prior to the deposition of the alumina.

Abstract translation: 磁头组件包括夹在两个陶瓷层之间的铁氧体磁芯。 氧化铝膜通过溅射沉积在铁氧体磁芯的侧面和陶瓷层的一个结构中，并且在铁氧体磁芯上仅在另一结构中沉积，然后将其结合以形成一体的磁头组件。 在陶瓷层的空气轴承表面形成有提供飞行高度控制的槽。 制造组件的过程包括在氧化铝沉积之前溅射刻蚀铁素体和陶瓷的步骤。

公开(公告)号：WO1983002032A1

公开(公告)日：1983-06-09

申请号：PCT/US1981001555

申请日：1981-11-24

Applicant: EASTMAN TECHNOLOGY, INC.

Inventor： EASTMAN TECHNOLOGY, INC. ,  FRENCH, William, W. ,  LEMKE, James, U. ,  McCLURE, Richard, J.

IPC: G11B05/42

CPC classification number: G11B5/29

Abstract: A multitrack magnetic head is made from an electrically conductive first helix (10) formed on an iron wire (12) that is, in turn, wound about a mandrel (14) to form a second helix (15). By longitudinally cutting along one side of the second helix, discrete core pieces are formed, each having a helical winding (i.e. a portion of the first helix) wrapped thereabout.

Abstract translation: 多轨磁头由形成在铁丝（12）上的导电第一螺旋（10）制成，铁丝（12）又围绕心轴（14）缠绕以形成第二螺旋（15）。 通过沿着第二螺旋的一侧纵向地切割，形成分离的芯片，每个芯片都包围螺旋绕组（即第一螺旋的一部分）。

公开(公告)号：EP0116450A3

公开(公告)日：1987-01-14

申请号：EP84300702

申请日：1984-02-03

Applicant: AMPEX CORPORATION

Inventor： Milo, Richard K.

IPC: G11B05/28 ,  G11B05/42

CPC classification number: G11B5/295 ,  G11B5/29 ,  Y10T29/49028 ,  Y10T29/49048 ,  Y10T29/49057

Abstract: A plurality of magnetic blocks (10a, 10b, 10c) is integrally joined side-by-side with a nonmagnetic material therebetween to provide an effectively monolithic block (10) defining parallel transducing gap planes, each pertaining to one multichannel transducer stack. A plurality of first parallel slots (21, 22, 23) in the monolithic block intersects the gap planes to define a plurality of partitions, each partition forming pairs of magnetic pole pieces (46, 47) defining respective transducing gaps pertaining to respective stacks. The transducing gaps of each partition define interlaced transducing channels of the multichannel assembly. Second parallel slots (40-42) provided along the gap planes have apexes defining transducing gap depths. The resulting transducing channels have uniform gap azimuth and gap depth while uniform internal stack alignment between all the respective stacks is obtained.

公开(公告)号：EP0032740A3

公开(公告)日：1982-01-27

申请号：EP81100319

申请日：1981-01-16

Applicant: OLYMPUS OPTICAL CO., LTD.

Inventor： Sakurai, Yoshifumi

IPC: G11B05/38 ,  G11B05/42

CPC classification number: G11B5/372 ,  G11B5/29 ,  G11B5/4946

Abstract: Disclosed is a multichannel magnetic head having magnetic circuits for respective channels, each positioned to traverse a magnetic flux (φ) to be detected, and a Hall element disposed in the magnetic circuits and used as magnetic-electric converter. The Hall element (14) is an amorphous magnetic thin film which consists essentially of an alloy containing a rare earth element (e.g. Gd) and a transition metal (e.g. Co). To the amorphous magnetic thin film (14) there are connected to a pair of current terminals (20, 22) and Hall voltage terminals (16)-16 4 ). The Hall voltage terminals are provided in the same numbers as the channels or the magnetic circuits (7 1 -7 4 ).

公开(公告)号：EP0039090A3

公开(公告)日：1981-12-09

申请号：EP81103292

申请日：1981-04-30

Applicant: KABUSHIKI KAISHA TOSHIBA

Inventor： Fujioka, Yoshiharu ,  Takei, Shushi

IPC: G11B05/27 ,  G11B05/42

CPC classification number: G11B5/1871 ,  G11B5/265 ,  Y10T29/49048 ,  Y10T29/49057

Abstract: A composite magnetic head structure of the following construction is disclosed. A composite magnetic head structure comprising: a front core (16) consisting of a non-magnetic spacing means (10) for separating a read/write magnetic flux path from an erase magnetic flux path and first and second core chips (12,14) adhered together with the spacing means (10) interposed therebetween, at the central portion of said first core chip (12) being formed a read/write gap (28) which is parallel to the longitudinal direction of said spacing means (10) and whose width is defined by first and second notches (30,32) extending from respective side edges of said first core chip (12), and erase gaps (34,36) being formed in said second core chip (14) which extend between the side edges of said second core chip (14) parallel to the longitudinal direction of said spacing means and whose widths are defined by a third notch (38) formed at a positon substantially corresponding to said read/write gap (28) as viewed along the direction of arrangement of said first and second core chips (12,14); a back core (18) adhered to said front core (16) forming said read/write magnetic flux path and said erase magnetic flux path, said back core (18) having a read/write magnetic leg (20) forming said read/write magnetic flux path, an erase leg (22) forming said erase magneticflux path, and a common leg (56) forming both said magnetic flux paths and having a fourth notch (58) for separating said magnetic flux paths formed at a position corresponding to said spacing means;

公开(公告)号：WO1997016825A1

公开(公告)日：1997-05-09

申请号：PCT/US1996016356

申请日：1996-10-15

Applicant: QUANTUM PERIPHERALS COLORADO, INC.

Inventor： QUANTUM PERIPHERALS COLORADO, INC. ,  QUINTANA, Dan, W. ,  BROUSSALIAN, Chris ,  KEIL, John, Jr. ,  NIELSEN, Georgene ,  JEMELKA, Jorg ,  CHESNUTT, Robert ,  TROWBRIDGE, William

IPC: G11B05/42

CPC classification number: G11B5/3173 ,  G11B5/105 ,  G11B5/3103 ,  G11B21/21 ,  Y10T29/49041 ,  Y10T29/4905 ,  Y10T29/49998 ,  Y10T29/53261 ,  Y10T29/53265 ,  Y10T29/53978 ,  Y10T29/53983

Abstract: A tool, and associated method, for batch processing the definition of air bearing surfaces on rows (48) comprising a plurality of sliders is disclosed. The tool (60) comprises a main body member (76) having a recess (126) with a lateral wall (130) defining an x-axis alignment reference surface. A central platform (86) is positioned in the recess, having an upper surface (87) defining an upwardly facing z-axis base surface and a pair of pins (112) defining y-axis alignment reference surface. The rows (48) are positioned adjacent to one another on the upper surface (87) of the platform such that an anchor row engages the pins along its longitudinal side and abuts the lateral wall at its one end for aligning respectively with the y-axis and x-axis reference surfaces. All the rows have top surfaces lie in a common plane which is parallel with the z-axis base surface.

Abstract translation: 公开了一种用于批量处理包括多个滑块的行（48）上的空气轴承表面的定义的工具和相关联的方法。 工具（60）包括具有凹口（126）的主体构件（76），其具有限定x轴对准参考表面的侧壁（130）。 中心平台（86）定位在凹部中，具有限定向上的z轴基面的上表面（87）和限定y轴对准参考表面的一对销（112）。 行（48）在平台的上表面（87）上彼此相邻地定位，使得锚定列沿着其纵向侧与销接合并且在其一端处抵靠侧壁以分别与y轴对齐 和x轴参考表面。 所有的行具有顶表面位于与z轴底表面平行的公共平面中。

公开(公告)号：WO1990001205A1

公开(公告)日：1990-02-08

申请号：PCT/US1989003122

申请日：1989-07-19

Applicant: STORAGE TECHNOLOGY CORPORATION

Inventor： STORAGE TECHNOLOGY CORPORATION ,  VON BRANDT, Kim ,  STROUD, Robert, D. ,  KEIL, John, Jr. ,  BLAKESLEE, Bruce, Lynn

IPC: G11B05/42

CPC classification number: G11B21/16 ,  G11B5/4826 ,  Y10T29/4903 ,  Y10T156/1744

Abstract: A method and apparatus for positioning a magnetic read/write head (1) with precision orientation on a suspension assembly arm (9). The arm contains a plurality of mounting indicia (2). Computer controlled apparatus (64), including an optics system (43), scans the mounting indicia (2) and the head (1) and mounts the head (1) on a predetermined desired location on the arm (9) and with the desired orientation.

公开(公告)号：WO1988004817A1

公开(公告)日：1988-06-30

申请号：PCT/JP1983000260

申请日：1983-08-10

Applicant: SAKAKIMA, Hiroshi

IPC: G11B05/42

CPC classification number: G11B5/127 ,  G11B5/3183 ,  Y10T29/49043 ,  Y10T29/49055 ,  Y10T29/49067 ,  Y10T29/49796

Abstract: A method of fabricating a magnetic head comprises the steps of forming by a sputtering or deposition method a magnetic layer (4 in Fig. 1, 1 in Fig. 3) over a surface of a first substrate of glass or a nonmagnetic substance (1 in Fig. 1, 2 in Fig. 3), then forming by a sputtering method a magnetic gap layer (6 in Fig. 1, 3 in Fig. 3) made of a nonmagnetic substance to a predetermined thickness on a side face of the composite of the first substrate and the magnetic layer, then either (1) butting a second substrate (7 in Fig. 1) of the same material as the first substrate and of substantially the same thickness thereof against the side of the first substrate with the magnetic gap layer therebetween, to integrate it with the composite, then forming by a sputtering or deposition method a magnetic layer (10 in Fig. 1) to a predetermined thickness over the side on which is formed the magnetic layer of the composite substrate, or (2) bonding the magnetic layer side of the first substrate onto part of a second substrate (4 in Fig. 3) and then forming by a sputtering or deposition method a magnetic layer (1' in Fig. 3) to a predetermined thickness over the surface of the second substrate of the obtained composite and the rear surface of the first substrate, and then polishing the magnetic layer to expose the gap layer between the magnetic layers.

Abstract translation: 制造磁头的方法包括以下步骤：通过溅射或沉积方法在第一玻璃基板或非磁性物质的表面上形成磁性层（图1中的4，图3中的1） 图1中的图1），然后通过溅射法在复合材料的侧面上形成由非磁性物质制成预定厚度的磁隙层（图1中的6，图3中的3） 的第一衬底和磁性层，然后（1）将与第一衬底相同的材料的第二衬底（图1中的7）与第一衬底的基本上相同的厚度抵靠第一衬底的一侧与磁性 然后通过溅射或沉积方法将磁性层（图1中的10）形成在形成复合衬底的磁性层的一侧上的预定厚度，或者（ 2）将第一衬底的磁性层侧接合到其上 第二基板的一部分（图1中的4）。 3），然后通过溅射或沉积方法将磁性层（图3中的1'）形成到所获得的复合材料的第二基板的表面上的预定厚度和第一基板的后表面上，然后抛光 磁性层以露出磁性层之间的间隙层。

公开(公告)号：EP0116451A3

公开(公告)日：1988-03-16

申请号：EP84300703

申请日：1984-02-03

Applicant: AMPEX CORPORATION

Inventor： Schiller, Edward

IPC: G11B05/42 ,  G11B05/22 ,  G11B05/221 ,  G11B05/28

CPC classification number: B29C70/745 ,  B29C43/18 ,  G11B5/187 ,  G11B5/193 ,  G11B5/295 ,  Y10T29/49048 ,  Y10T29/49057

Abstract: A transducer and method are described where track width reducing notches are filled with a nonmagnetic material which is heated to or slightly over its softening temperature but below its melting temperature. Concentrated high pressure at discrete locations is applied to the softened nonmagnetic material too enhance flow thereof into the notches.