Claims
- 1. A method of fabricating a back yoke for a magnetic head, the back yoke including a generally rectangularly shaped base plate having a flat base plate surface, a closure member including four sidewall portions, a plurality of shortened ribs and a plurality of leg portions with each one of the leg portions associated with a respective one of the plurality of shortened ribs, the closure member connected to the base plate with the four sidewall portions connected to each other and projecting from and substantially circumferentially about a periphery of the base plate to form a cavity as defined by the flat base plate surface and an inner surface of the closure member, the closure member including at least one gap formed between facially opposing wall surfaces of a selected one of the sidewall portions, the cavity being in communication exteriorly of the body member through the at least one gap, the plurality of shortened ribs disposed within the cavity and connected to the base plate and a remaining one of the sidewall portions, each of the plurality of shortened ribs extending from the remaining one of the sidewall portions in a spaced apart parallel relationship with respect to one another along a respective rib axis, the plurality of leg portions connected to the base plate, disposed within the cavity in a spaced apart relationship relative to each other and aligned along a central axis with each leg portion of the plurality of leg portions spaced apart from a respective one of the plurality of shortened ribs along a respective one of the rib axes, the central axis crisscrossing the rib axes substantially perpendicularly, the method comprising the steps of:
- mixing a particle-textured Mn--Zn ferrite or Ni--Zn ferrite with an organic binder to form a mixture;
- pressuring the mixture in a mold to mold the back yoke having a plurality of extended ribs, each of the plurality of extended ribs including a connecting section connecting a respective one of the plurality of shortened ribs and a respective associated one of the plurality of leg portions;
- vaporizing the organic binder contained in the back yoke by heat treatment in a high-temperature furnace at a predetermined pressure;
- sintering the Mn--Zn ferrite or the Ni--Zn ferrite; and
- removing the connecting section of each of the plurality of extended ribs.
Priority Claims (1)
Number |
Date |
Country |
Kind |
8-209204 |
Jul 1996 |
JPX |
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Parent Case Info
This is a continuation of application Ser. No. 08/780,326 filed Jan. 8, 1997 now abandoned. The entire disclosure of the prior application is hereby incorporated by reference herein in its entirety.
US Referenced Citations (4)
Foreign Referenced Citations (1)
Number |
Date |
Country |
7-235013 |
Sep 1995 |
JPX |
Continuations (1)
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Number |
Date |
Country |
Parent |
780326 |
Jan 1997 |
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