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AssigneeNEC Corporation
InventorsKazuhiko Hayashi, Junichi Fujikata, Tsutomu Ishi, Shigeru Mori, Keishi Ohashi, Masafumi Nakada, Kiyokazu Nagahara, Kunihiko Ishihara, Nobuyuki Ishiwata
Estimating the term…
A magneto-resistance effect head is provided with a lower conductive layer which is provided with a recessed portion, and a vertical bias layer is provided in the recessed portion. A free layer is provided on the lower conductive layer. On the free layer, layered in the following order are the non-magnetic layer, the fixed layer, the fixing layer, and the upper layer so as not to be placed immediately above the vertical bias layer. The non-magnetic layer, the fixed layer, the fixing layer, and the upper layer are buried in an insulation layer. Furthermore, an upper conductive layer is provided on the upper layer and the insulation layer. In the direction of the magnetic field applied by the vertical bias layer, the free layer is made greater in length than the fixed layer and the free layer is disposed in proximity to the vertical bias layer with the distance between the fixed layer and the vertical bias layer remaining unchanged.
A magneto-resistance effect element comprising:
A magneto-resistance effect element comprising:
A magneto-resistance effect element comprising:
A magneto-resistance effect element comprising:
A magneto-resistance effect element comprising:
A magneto-resistance effect element comprising:
A magneto-resistance effect element comprising:
A magneto-resistance effect element comprising:
Dependencies are inferred from the claim text.
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Analysis of signal quality: bER [Bit Error Rate] test
Nanotechnology for information processing, storage or transmission
Nanomagnetism
Magnetoresistive devices: using multilayer structures, e.g. giant magnetoresistance sensors
Term end not estimated
1. Field of the Invention
The present invention relates to a magneto-resistance effect element for writing and reading an information signal on magnetic storage media, a magneto-resistance effect head comprising the magneto-resistance effect element, a magneto-resistance transducer system comprising the magneto-resistance effect head, and a magnetic storage system comprising the magneto-resistance transducer system. More particularly, the present invention relates to a magneto-resistance effect element that reduces noise in a read signal.
2. Description of the Related Art
FIG. 1 is a fragmentary sectional view illustrating the structure of a magneto-resistance effect head according to a prior-art;
FIG. 2 is a fragmentary sectional view illustrating the structure of a magneto-resistance effect head according to a prior-art;
FIG. 3 is a fragmentary sectional view illustrating the structure of a magneto-resistance effect head according to a prior-art;
Now, the present invention will be explained below more specifically with reference to the accompanying drawings in accordance with the embodiments. Incidentally, all the fragmentary sectional views employed in the embodiments of the present invention illustrate a magneto-resistance effect head cut in parallel to the surface of an air bearing. In addition, in the embodiments of the present invention, the expression of “patterning” of layers or the like denotes allowing part of the layers or the like to remain and part thereof to be removed by etching or like means in illustrated regions within illustrated sections. Thus, this expression will never mean allowing part of the layers or the like to remain and part thereof to be removed by etching or like means in non-illustrated sections or regions. In other words, in the embodiments of the present invention, the layers or the like that are not denoted with the expression of “patterning” may also allow part thereof to remain and part thereof to be removed by etching or like means in non-illustrated sections or regions.
Now, described below are a magneto-resistance effect head according to a first embodiment of the present invention and a method for fabricating the head. FIGS. 4-10 are fragmentary sectional views illustrating the steps of the method for fabricating the magneto-resistance effect head according to this embodiment in the order in which they appear in the method.
First, as shown in FIG. 4, a lower shield layer 16 and a lower conductive layer 1 are formed successively on a substrate (not shown).