JPS61105908U

JPS61105908U -

Info

Publication number: JPS61105908U
Application number: JP19102884U
Authority: JP
Priority date: 1984-12-17
Filing date: 1984-12-17
Publication date: 1986-07-05

Description

[Brief explanation of the drawing]

第１図は本考案に係る薄膜磁気ヘツドの構成例
を示す断面図、第２図は第１図ヘツドの全体を示
した斜視図、第３図と第４図は従来の薄膜磁気ヘ
ツドの構成を示す断面図、第５図は本考案に係る
薄膜磁気ヘツドの別の構成を示す断面図である。７……非磁性体層、８……励磁コイル、９……
上部磁極隔離層、１０……下部磁極隔離層、１１
……上部磁極、１２……下部磁極、１３……絶縁
層、１４……非磁性基板。 FIG. 1 is a sectional view showing an example of the configuration of a thin film magnetic head according to the present invention, FIG. 2 is a perspective view showing the entire head of FIG. 1, and FIGS. 3 and 4 are configurations of conventional thin film magnetic heads. FIG. 5 is a sectional view showing another structure of the thin film magnetic head according to the present invention. 7... Non-magnetic layer, 8... Excitation coil, 9...
Upper magnetic pole isolation layer, 10...Lower magnetic pole isolation layer, 11
...Top magnetic pole, 12...Bottom magnetic pole, 13...Insulating layer, 14...Nonmagnetic substrate.

Claims

[Scope of utility model registration request]

a non-magnetic substrate; an electrically insulating layer disposed with one surface in contact with the non-magnetic substrate and having a recessed portion on at least the other surface; a lower magnetic pole made of a thin film made of a ferromagnetic material having
A non-magnetic layer provided on the lower magnetic pole surface with the concave portion filled, an excitation coil provided on the non-magnetic layer, and an upper magnetic pole arranged to cover the excitation coil portion and having a convex shape. A thin-film magnetic head comprising: an isolation layer; and a thin-film upper magnetic pole provided along the surface of the upper magnetic pole isolation layer and the non-magnetic layer and made of the same material as the lower magnetic pole.