JPS5514555A - Manufacture for magnetic head - Google Patents

Manufacture for magnetic head

Info

Publication number
JPS5514555A
JPS5514555A JP8719178A JP8719178A JPS5514555A JP S5514555 A JPS5514555 A JP S5514555A JP 8719178 A JP8719178 A JP 8719178A JP 8719178 A JP8719178 A JP 8719178A JP S5514555 A JPS5514555 A JP S5514555A
Authority
JP
Japan
Prior art keywords
substrate
gap depth
providing
groove
substrates
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
Application number
JP8719178A
Other languages
Japanese (ja)
Inventor
Teizo Tamura
Oku Hanawa
Minoru Miyoshi
Noriyoshi Arakawa
Sanehiro Kudo
Hideo Fujiwara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP8719178A priority Critical patent/JPS5514555A/en
Publication of JPS5514555A publication Critical patent/JPS5514555A/en
Pending legal-status Critical Current

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  • Magnetic Heads (AREA)

Abstract

PURPOSE: To increase the machining accuracy of the head gap depth and the yield rate, by making longer the length of the substrate performed with winding window groove machining than that of other substrate, in sticking two magnetic substance substrates.
CONSTITUTION: The lengths l1, l2, of the ferrite substrates 5,9 are made as l1<l2, the winding groove 3 is formed on the substrate 5, the substrate providing the gap depth h about 4 to 5 times the final gap depth Gd is formed, and the substrate 10 providing the convex groove 7 to form the track width is formed. On the other hand, the substrate 10 providing the concave 7 on the substrate 9, the substrates 8 and 10 are butted, and glass is filled in the concave groove 7 to form the block 11. Since the substrate 8 providing the winding groove 3' is longer than another substrate 10, the gap depth can be observed from the projected part and the management can easily be made, allowing the gap depth to be machined in high accuracy and yield rate.
COPYRIGHT: (C)1980,JPO&Japio
JP8719178A 1978-07-19 1978-07-19 Manufacture for magnetic head Pending JPS5514555A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8719178A JPS5514555A (en) 1978-07-19 1978-07-19 Manufacture for magnetic head

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8719178A JPS5514555A (en) 1978-07-19 1978-07-19 Manufacture for magnetic head

Publications (1)

Publication Number Publication Date
JPS5514555A true JPS5514555A (en) 1980-02-01

Family

ID=13908089

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8719178A Pending JPS5514555A (en) 1978-07-19 1978-07-19 Manufacture for magnetic head

Country Status (1)

Country Link
JP (1) JPS5514555A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0617413A2 (en) * 1993-03-26 1994-09-28 Ngk Insulators, Ltd. Magnetic head sliders and a process for producing the same

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5173421A (en) * 1974-12-23 1976-06-25 Hitachi Metals Ltd Jikihetsudono seizohoho

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5173421A (en) * 1974-12-23 1976-06-25 Hitachi Metals Ltd Jikihetsudono seizohoho

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0617413A2 (en) * 1993-03-26 1994-09-28 Ngk Insulators, Ltd. Magnetic head sliders and a process for producing the same
EP0617413A3 (en) * 1993-03-26 1995-08-09 Ngk Insulators Ltd Magnetic head sliders and a process for producing the same.

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