JPS5468619A - Production of magnetic head - Google Patents
Production of magnetic headInfo
- Publication number
- JPS5468619A JPS5468619A JP13591677A JP13591677A JPS5468619A JP S5468619 A JPS5468619 A JP S5468619A JP 13591677 A JP13591677 A JP 13591677A JP 13591677 A JP13591677 A JP 13591677A JP S5468619 A JPS5468619 A JP S5468619A
- Authority
- JP
- Japan
- Prior art keywords
- film
- width
- ferrite
- block
- gap
- 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
Abstract
PURPOSE: To narrow the track and gap in magnetic head for home-use VTR, by forming a resist pattern with glass sputtering film for defining gap length of ferrite head.
CONSTITUTION: A gap end face 2 of one ferrite block 1 is planished to mirror- finish, and the degenerated layer is removed by electroetching. A glass sputtering film 3 having a thickness corresponding to the specified gap length is deposited on the face 2, and a pattern 4 is formed. At this time, width T of the film 3 is controlled at t+2a (t: required track width; a: required etching amount). The block 1 is electroetched, using the film 3 as the resist, and the front butt end is constructed into a comb form having width of (t). This comb-like ferrite block 5 and another ferrite block 7 having a winding window 6 are joined end to end, and molded and bonded together with glass 8. Then, the head core 9 is cut and separated along the dot-dash line.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13591677A JPS5468619A (en) | 1977-11-11 | 1977-11-11 | Production of magnetic head |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP13591677A JPS5468619A (en) | 1977-11-11 | 1977-11-11 | Production of magnetic head |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5468619A true JPS5468619A (en) | 1979-06-01 |
Family
ID=15162830
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP13591677A Pending JPS5468619A (en) | 1977-11-11 | 1977-11-11 | Production of magnetic head |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5468619A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7114241B2 (en) * | 1998-11-11 | 2006-10-03 | Western Digital (Fremont), Inc. | Method of manufacturing a magnetic head device |
-
1977
- 1977-11-11 JP JP13591677A patent/JPS5468619A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7114241B2 (en) * | 1998-11-11 | 2006-10-03 | Western Digital (Fremont), Inc. | Method of manufacturing a magnetic head device |
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