DE68922356D1 - Elektrische Leiter zur Engtoleranz-Bearbeitung. - Google Patents
Elektrische Leiter zur Engtoleranz-Bearbeitung.Info
- Publication number
- DE68922356D1 DE68922356D1 DE68922356T DE68922356T DE68922356D1 DE 68922356 D1 DE68922356 D1 DE 68922356D1 DE 68922356 T DE68922356 T DE 68922356T DE 68922356 T DE68922356 T DE 68922356T DE 68922356 D1 DE68922356 D1 DE 68922356D1
- Authority
- DE
- Germany
- Prior art keywords
- sensor
- resistive
- discrete
- analog
- lapping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/187—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features
- G11B5/1871—Shaping or contouring of the transducing or guiding surface
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3103—Structure or manufacture of integrated heads or heads mechanically assembled and electrically connected to a support or housing
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3163—Fabrication methods or processes specially adapted for a particular head structure, e.g. using base layers for electroplating, using functional layers for masking, using energy or particle beams for shaping the structure or modifying the properties of the basic layers
- G11B5/3166—Testing or indicating in relation thereto, e.g. before the fabrication is completed
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
- Y10T29/49032—Fabricating head structure or component thereof
- Y10T29/49036—Fabricating head structure or component thereof including measuring or testing
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/49—Method of mechanical manufacture
- Y10T29/49002—Electrical device making
- Y10T29/4902—Electromagnet, transformer or inductor
- Y10T29/49021—Magnetic recording reproducing transducer [e.g., tape head, core, etc.]
- Y10T29/49032—Fabricating head structure or component thereof
- Y10T29/49048—Machining magnetic material [e.g., grinding, etching, polishing]
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53022—Means to assemble or disassemble with means to test work or product
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T29/00—Metal working
- Y10T29/53—Means to assemble or disassemble
- Y10T29/53026—Means to assemble or disassemble with randomly actuated stopping or disabling means
- Y10T29/5303—Responsive to condition of work or product
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Magnetic Heads (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Processing Of Terminals (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Machine Tool Sensing Apparatuses (AREA)
- Insulation, Fastening Of Motor, Generator Windings (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US07/238,868 US5023991A (en) | 1988-08-31 | 1988-08-31 | Electrical guide for tight tolerance machining |
Publications (2)
Publication Number | Publication Date |
---|---|
DE68922356D1 true DE68922356D1 (de) | 1995-06-01 |
DE68922356T2 DE68922356T2 (de) | 1995-11-09 |
Family
ID=22899657
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE68922356T Expired - Fee Related DE68922356T2 (de) | 1988-08-31 | 1989-07-19 | Elektrische Leiter zur Engtoleranz-Bearbeitung. |
Country Status (6)
Country | Link |
---|---|
US (1) | US5023991A (de) |
EP (1) | EP0357203B1 (de) |
JP (1) | JPH02124262A (de) |
AT (1) | ATE121835T1 (de) |
CA (1) | CA1311272C (de) |
DE (1) | DE68922356T2 (de) |
Families Citing this family (43)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5265378A (en) * | 1992-07-10 | 1993-11-30 | Lsi Logic Corporation | Detecting the endpoint of chem-mech polishing and resulting semiconductor device |
US5468177A (en) * | 1993-02-26 | 1995-11-21 | Quantum Corporation | Lapping fixture for disk sliders |
US5494473A (en) * | 1993-07-07 | 1996-02-27 | Quantum Corporation | Electrical access for electrical lapping guides |
JP3091404B2 (ja) * | 1995-11-09 | 2000-09-25 | 富士通株式会社 | 磁気ヘッドの製造方法 |
US5722155A (en) * | 1996-01-11 | 1998-03-03 | Seagate Technology, Inc. | Machining guide method for magnetic recording reproduce heads |
US6047224A (en) * | 1996-04-10 | 2000-04-04 | Seagate Techology, Inc. | Machining guide for magnetic recording reproduce heads |
US5755612A (en) * | 1996-10-28 | 1998-05-26 | Seagate Technology, Inc. | Small foot machining guide for recording heads |
KR100422436B1 (ko) * | 1996-10-29 | 2004-03-12 | 시게이트 테크놀로지 엘엘씨 | 개선된 전기 랩 가이드 배선 구조 |
USRE38340E1 (en) * | 1996-11-04 | 2003-12-02 | Seagate Technology Llc | Multi-point bending of bars during fabrication of magnetic recording heads |
CN1082867C (zh) * | 1996-11-04 | 2002-04-17 | 西加特技术有限责任公司 | 用于研磨承载多个滑动体的条杆的装置 |
US5951371A (en) * | 1996-11-04 | 1999-09-14 | Seagate Technology, Inc. | Multi-point bending of bars during fabrication of magnetic recording heads |
US6475064B2 (en) | 1996-12-13 | 2002-11-05 | Seagate Technology Llc | Multipoint bending apparatus for lapping heads of a data storage device |
US6287170B1 (en) | 1996-12-13 | 2001-09-11 | Seagate Technology Llc | Multipoint bending apparatus for lapping heads of a data storage device |
US5991698A (en) * | 1997-01-29 | 1999-11-23 | Seagate Technology, Inc. | Electrical lap guide data acquisition unit and measurement scheme |
US5738566A (en) * | 1997-03-31 | 1998-04-14 | Seagate Technology, Inc. | Lapping guide system, method and article of manufacture |
JP3403605B2 (ja) * | 1997-04-08 | 2003-05-06 | 富士通株式会社 | 部材接着方法及び部材接着装置 |
JPH10286766A (ja) * | 1997-04-10 | 1998-10-27 | Fujitsu Ltd | 薄膜素子の自動ラッピング方法及びその装置 |
JPH10289413A (ja) * | 1997-04-10 | 1998-10-27 | Fujitsu Ltd | 磁気ヘッドの製造方法 |
JP3395590B2 (ja) | 1997-08-07 | 2003-04-14 | ティーディーケイ株式会社 | 磁気抵抗効果ヘッドの研磨制御用センサ及び該センサを用いた研磨制御方法 |
US5997381A (en) * | 1997-09-29 | 1999-12-07 | Storage Technology Corporation | Lapping sensor for thin film recording elements and method for manufacturing same |
US6045431A (en) * | 1997-12-23 | 2000-04-04 | Speedfam Corporation | Manufacture of thin-film magnetic heads |
JP3625685B2 (ja) | 1999-04-15 | 2005-03-02 | 富士通株式会社 | ラッピング装置及びラッピング方法 |
JP2002050016A (ja) * | 2000-07-28 | 2002-02-15 | Fujitsu Ltd | 磁気ヘッドスライダの製造方法及び装置 |
JP3789744B2 (ja) | 2000-10-27 | 2006-06-28 | 富士通株式会社 | ラッピング装置及びラッピング方法 |
US6609948B1 (en) * | 2000-11-27 | 2003-08-26 | International Business Machines Corporation | Method of making an electronic lapping guide (ELG) for lapping a read sensor |
JP2002260203A (ja) * | 2001-03-02 | 2002-09-13 | Tdk Corp | 薄膜磁気ヘッドの製造方法、及びウエハ構造 |
US6950289B2 (en) * | 2001-03-16 | 2005-09-27 | Lafe Computer Magnetics Ltd. | Embedded lapping guide for a magnetic head cluster |
US6728067B2 (en) * | 2001-07-30 | 2004-04-27 | Hitachi Global Storage Technologies Netherlands B.V. | Slider having integrated lapping guides |
US6736704B2 (en) | 2002-04-18 | 2004-05-18 | Saint-Gobain Ceramics & Plastics, Inc. | Lapping carrier for use in fabricating sliders |
US6731110B2 (en) * | 2002-05-28 | 2004-05-04 | International Business Machines Corporation | Magneto-resistive device with built-in test structure and method for determining resistance and track width |
US6758722B2 (en) * | 2002-07-12 | 2004-07-06 | Sae Magentics, (H.K.) Ltd. | Dual-purpose lapping guide for the production of magneto-resistive heads |
US6786803B2 (en) | 2002-11-19 | 2004-09-07 | International Business Machines Corporation | Onboard multiphase electronic lapping guide design for MR heads |
US7369369B1 (en) * | 2003-04-03 | 2008-05-06 | Meyer Dallas W | Bidirectional micropositioning recording head for a magnetic storage device |
US7538983B1 (en) | 2003-07-29 | 2009-05-26 | Meyer Dallas W | Micropositioner recording head for a magnetic storage device |
US6994608B1 (en) | 2004-11-12 | 2006-02-07 | Hitachi Global Storage Technologies Netherlands, B.V. | Methods of manufacturing sliders |
JP2006202354A (ja) * | 2005-01-18 | 2006-08-03 | Shinka Jitsugyo Kk | 表面形成方法及び装置、磁気ヘッド及びその製造方法 |
US7643250B2 (en) | 2006-01-27 | 2010-01-05 | Hitachi Global Storage Technologies Netherlands B.V. | Pad slider design for on-slider ELGs |
US7861400B2 (en) | 2007-05-04 | 2011-01-04 | Hitachi Global Storage Technologies Netherlands, B.V. | Fabricating a write head with multiple electronic lapping guides |
US9190083B2 (en) | 2013-10-14 | 2015-11-17 | Seagate Technology Llc | Methods of manufacturing magnetic heads using a trigger reader electronic lapping guide |
US9721595B1 (en) | 2014-12-04 | 2017-08-01 | Western Digital (Fremont), Llc | Method for providing a storage device |
CN205845513U (zh) * | 2016-07-19 | 2016-12-28 | 新科实业有限公司 | 用于形成磁头的长形条及晶圆 |
US10354679B2 (en) | 2016-12-13 | 2019-07-16 | International Business Machines Corporation | Magnetic recording module having tunnel valve sensors with dissimilar tunnel barrier resistivities |
US10014014B1 (en) * | 2017-06-14 | 2018-07-03 | International Business Machines Corporation | Magnetic recording apparatus having circuits with differing tunnel valve sensors and about the same resistance |
Family Cites Families (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3821815A (en) * | 1972-10-11 | 1974-06-28 | Ibm | Apparatus for batch fabricating magnetic film heads and method therefor |
US4014141A (en) * | 1974-03-11 | 1977-03-29 | International Business Machines Corporation | Apparatus and method for controlling magnetic head surface formation |
US4477968A (en) * | 1982-09-30 | 1984-10-23 | Magnetic Peripherals Inc. | Method for using a machining sensor |
US4559743A (en) * | 1982-09-30 | 1985-12-24 | Magnetic Peripherals, Inc. | Method for calibrating a machining sensor |
GB2128747B (en) * | 1982-09-30 | 1985-11-06 | Magnetic Peripherals Inc | Machinable prism method of forming the same machining guide and method of calibrating a machining sensor |
GB2128474B (en) * | 1982-10-05 | 1986-08-28 | Braitrim | Garment hangers |
JPS61182618A (ja) * | 1985-02-07 | 1986-08-15 | Fujitsu Ltd | 薄膜磁気ヘツドのギヤツプ深さ検出法 |
JPS6212911A (ja) * | 1985-07-10 | 1987-01-21 | Hitachi Ltd | 薄膜磁気ヘツドの製造法 |
US4675986A (en) * | 1985-07-29 | 1987-06-30 | International Business Machines | Electrical lapping guide for controlling the batch fabrication of thin film magnetic transducers |
US4689877A (en) * | 1985-08-29 | 1987-09-01 | International Business Machines Corp. | Method and apparatus for controlling the throat height of batch fabricated thin film magnetic transducers |
JPS6352968A (ja) * | 1986-08-20 | 1988-03-07 | Fujitsu Ltd | 自動研磨装置 |
-
1988
- 1988-08-31 US US07/238,868 patent/US5023991A/en not_active Expired - Fee Related
-
1989
- 1989-07-18 CA CA000605966A patent/CA1311272C/en not_active Expired - Fee Related
- 1989-07-19 DE DE68922356T patent/DE68922356T2/de not_active Expired - Fee Related
- 1989-07-19 EP EP89307293A patent/EP0357203B1/de not_active Expired - Lifetime
- 1989-07-19 AT AT89307293T patent/ATE121835T1/de not_active IP Right Cessation
- 1989-08-21 JP JP1214751A patent/JPH02124262A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
EP0357203B1 (de) | 1995-04-26 |
JPH02124262A (ja) | 1990-05-11 |
EP0357203A2 (de) | 1990-03-07 |
DE68922356T2 (de) | 1995-11-09 |
CA1311272C (en) | 1992-12-08 |
US5023991A (en) | 1991-06-18 |
EP0357203A3 (en) | 1990-09-26 |
ATE121835T1 (de) | 1995-05-15 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |