JPS6412003B2 - - Google Patents
Info
- Publication number
- JPS6412003B2 JPS6412003B2 JP56112403A JP11240381A JPS6412003B2 JP S6412003 B2 JPS6412003 B2 JP S6412003B2 JP 56112403 A JP56112403 A JP 56112403A JP 11240381 A JP11240381 A JP 11240381A JP S6412003 B2 JPS6412003 B2 JP S6412003B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- recess
- magnetic head
- thin film
- base
- 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
Links
- 238000006243 chemical reaction Methods 0.000 claims description 5
- 239000010409 thin film Substances 0.000 claims 6
- 229910000859 α-Fe Inorganic materials 0.000 description 22
- 238000004519 manufacturing process Methods 0.000 description 10
- 239000000523 sample Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000000758 substrate Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007730 finishing process Methods 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical compound [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 2
- LNTHITQWFMADLM-UHFFFAOYSA-N gallic acid Chemical compound OC(=O)C1=CC(O)=C(O)C(O)=C1 LNTHITQWFMADLM-UHFFFAOYSA-N 0.000 description 2
- 229910052748 manganese Inorganic materials 0.000 description 2
- 239000011572 manganese Substances 0.000 description 2
- 229910000889 permalloy Inorganic materials 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 229910001289 Manganese-zinc ferrite Inorganic materials 0.000 description 1
- 229910001053 Nickel-zinc ferrite Inorganic materials 0.000 description 1
- JIYIUPFAJUGHNL-UHFFFAOYSA-N [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] Chemical compound [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Mn++].[Mn++].[Mn++].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Fe+3].[Zn++].[Zn++] JIYIUPFAJUGHNL-UHFFFAOYSA-N 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 229920006332 epoxy adhesive Polymers 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
Classifications
-
- 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
-
- 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
- Y10T29/49—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
- Y10T29/49055—Fabricating head structure or component thereof with bond/laminating preformed parts, at least two magnetic
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US06/208,766 US4390916A (en) | 1980-11-20 | 1980-11-20 | Single track magnetic head assembly |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5788515A JPS5788515A (en) | 1982-06-02 |
| JPS6412003B2 true JPS6412003B2 (en]) | 1989-02-28 |
Family
ID=22775969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56112403A Granted JPS5788515A (en) | 1980-11-20 | 1981-07-20 | Magnetic head |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US4390916A (en]) |
| EP (1) | EP0052708B1 (en]) |
| JP (1) | JPS5788515A (en]) |
| DE (1) | DE3167958D1 (en]) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0582903U (ja) * | 1992-04-13 | 1993-11-09 | 幸夫 平野 | ゴミ容器用シート |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8200531A (nl) * | 1982-02-12 | 1983-09-01 | Philips Nv | Magneetkop met gedeeltelijk uitgeetste wikkelopening. |
| DE3421083A1 (de) * | 1983-06-09 | 1984-12-13 | Alps Electric Co., Ltd., Tokio/Tokyo | Magnetkopf zur vertikalaufzeichnung |
| JPS60131604A (ja) * | 1983-12-20 | 1985-07-13 | Victor Co Of Japan Ltd | 磁気記録再生素子 |
| FR2570862B1 (fr) * | 1984-09-25 | 1986-11-21 | Europ Composants Electron | Procede de fabrication de tetes magnetiques a tres petits entrefers et tetes magnetiques obtenues par un tel procede |
| NL8501200A (nl) * | 1985-04-26 | 1986-11-17 | Philips Nv | Magneetkop voor loodrechte registratie. |
| FR2622340B1 (fr) * | 1987-10-27 | 1995-06-16 | Thomson Csf | Procede de realisation d'une tete magnetique d'enregistrement/lecture et tete realisee selon ce procede |
| JPH08126873A (ja) * | 1994-10-28 | 1996-05-21 | Nec Corp | 電子部品等の洗浄方法及び装置 |
| US5612843A (en) * | 1994-12-06 | 1997-03-18 | Packard; Edward L. | Method for accurately setting the gap in an inductive magnetic head |
| US7100266B2 (en) * | 2001-05-16 | 2006-09-05 | Seagate Technology Llc | Method of forming a beveled writing pole of a perpendicular writing element |
| US7249406B2 (en) * | 2005-02-28 | 2007-07-31 | Hitachi Global Storage Technologies Netherlands, B.V. | Method to detect magnetic pole defects in perpendicular recording heads at wafer level |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3229355A (en) * | 1962-01-02 | 1966-01-18 | Ibm | Method of making a magnetic transducer head |
| DE1549103A1 (de) * | 1967-10-14 | 1971-02-18 | Telefunken Patent | Zweispurmagnetkopf |
| US3700827A (en) * | 1970-01-31 | 1972-10-24 | Nippon Electric Co | Magnetic head including thin magnetic film separated by a gap spacer |
| US3821815A (en) * | 1972-10-11 | 1974-06-28 | Ibm | Apparatus for batch fabricating magnetic film heads and method therefor |
| US4037264A (en) * | 1975-09-26 | 1977-07-19 | International Business Machines Corporation | Magnetic head housing with wedge locking means |
| JPS5948448B2 (ja) * | 1975-11-05 | 1984-11-27 | 日本電気株式会社 | 磁気ヘッドの製造方法 |
| DE2751211C2 (de) * | 1977-11-16 | 1985-07-25 | Grundig E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co KG, 8510 Fürth | Verfahren zur Herstellung eines Löschkopfes |
-
1980
- 1980-11-20 US US06/208,766 patent/US4390916A/en not_active Expired - Lifetime
-
1981
- 1981-07-20 JP JP56112403A patent/JPS5788515A/ja active Granted
- 1981-09-16 DE DE8181107297T patent/DE3167958D1/de not_active Expired
- 1981-09-16 EP EP81107297A patent/EP0052708B1/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0582903U (ja) * | 1992-04-13 | 1993-11-09 | 幸夫 平野 | ゴミ容器用シート |
Also Published As
| Publication number | Publication date |
|---|---|
| EP0052708B1 (en) | 1984-12-27 |
| EP0052708A1 (en) | 1982-06-02 |
| DE3167958D1 (en) | 1985-02-07 |
| JPS5788515A (en) | 1982-06-02 |
| US4390916A (en) | 1983-06-28 |
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