JPS54103334A - Effective track width specifying method of magnetic head - Google Patents
Effective track width specifying method of magnetic headInfo
- Publication number
- JPS54103334A JPS54103334A JP1082378A JP1082378A JPS54103334A JP S54103334 A JPS54103334 A JP S54103334A JP 1082378 A JP1082378 A JP 1082378A JP 1082378 A JP1082378 A JP 1082378A JP S54103334 A JPS54103334 A JP S54103334A
- Authority
- JP
- Japan
- Prior art keywords
- grooves
- thru
- wafer
- track width
- thence
- 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.)
- Pending
Links
- 238000000034 method Methods 0.000 title abstract 3
- 235000012431 wafers Nutrition 0.000 abstract 5
- 239000011521 glass Substances 0.000 abstract 3
- 125000006850 spacer group Chemical group 0.000 abstract 2
- 238000004804 winding Methods 0.000 abstract 2
- 238000005530 etching Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 abstract 1
- 229910000859 α-Fe Inorganic materials 0.000 abstract 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
- G11B5/193—Structure or manufacture of the surface of the head in physical contact with, or immediately adjacent to the recording medium; Pole pieces; Gap features the pole pieces being ferrite or other magnetic particles
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Abstract
PURPOSE:To make work distortions less than those by machining methods and improve the reproduction output in a high frequency region by specifying the effective track width of magnetic heads by an etching method. CONSTITUTION:Resist films 2b, etc. of a specified width are coated in plural rows on a ferrite wafer 1 and the wafer is etched therethrough. After the resists are removed, gap spacer films 6a thru 6b of a desired thickness are deposited, thence grooves 7a, 7b, etc. are formed in the intermediate positions of the adjoining gap constituting faces by working with a cutter and also glass inserting grooves 8a thru 8c and winding grooves 9a, 9b are formed. On the other hand, another sheet of wafer is similarly formed (except that the spacer grooves, glass inserting grooves and winding grooves are not provided) and is then butted to the abovementioned wafer. After glasses 10a thru 10e are inserted into the grooves 8a thru 8c formed with both wafers and are then fused, the assembly is cut at A-A', B-B', C-C' and the tape contact faces are depth-worked to be rounded, thence the assembly is cut at D-D', E-E', etc. to obtain the individual head cores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1082378A JPS54103334A (en) | 1978-01-31 | 1978-01-31 | Effective track width specifying method of magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1082378A JPS54103334A (en) | 1978-01-31 | 1978-01-31 | Effective track width specifying method of magnetic head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS54103334A true JPS54103334A (en) | 1979-08-14 |
Family
ID=11761068
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1082378A Pending JPS54103334A (en) | 1978-01-31 | 1978-01-31 | Effective track width specifying method of magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS54103334A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57191825A (en) * | 1981-05-20 | 1982-11-25 | Matsushita Electric Ind Co Ltd | Manufacture of magnetic head |
| JPS57189131U (en) * | 1981-05-26 | 1982-12-01 | ||
| JPS60169708U (en) * | 1984-04-19 | 1985-11-11 | パイオニア株式会社 | magnetic head |
| JPS61129717A (en) * | 1984-11-26 | 1986-06-17 | Sharp Corp | Production of magnetic head |
| JPS61230605A (en) * | 1985-04-05 | 1986-10-14 | Hitachi Ltd | Production of magnetic head |
-
1978
- 1978-01-31 JP JP1082378A patent/JPS54103334A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS57191825A (en) * | 1981-05-20 | 1982-11-25 | Matsushita Electric Ind Co Ltd | Manufacture of magnetic head |
| JPS57189131U (en) * | 1981-05-26 | 1982-12-01 | ||
| JPS60169708U (en) * | 1984-04-19 | 1985-11-11 | パイオニア株式会社 | magnetic head |
| JPS61129717A (en) * | 1984-11-26 | 1986-06-17 | Sharp Corp | Production of magnetic head |
| JPS61230605A (en) * | 1985-04-05 | 1986-10-14 | Hitachi Ltd | Production of magnetic head |
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