Abstract:
A magnetic head has substrate(s) having a thermal expansion coefficient nearly equal to that of a soft magnetic film formed thereon, and the substrate has a composition consisting of .alpha.-Fe.sub.2 O.sub.3, or a ceramic composition containing 57-96 mol % of MgO, 2-41 mol % of NiO and 2-41 mol % of TiO.sub.2, and the soft magnetic film is an amorphous alloy film.
Abstract:
A composite material is provided which includes a discrete phase including grains made of a first substance; and a continuous phase including a thin coating film made of a second substance and formed on the surface of each of the grains. The thin coating film has a mean thickness smaller than the mean particle size of the grains. The grains are separated substantially from each other by the thin coating film. The porosity of the composite material is 5% or less.
Abstract:
A magnetic material is provided which includes a discrete phase including grains made of a first substance which comprises a magnetic metal; and a continuous phase including a thin coating film made of a second substance which comprises a dielectric or insulating substance. The thin coating film is formed on the surface of the grains and has a mean thickness smaller than the mean particle size of the grains. The grains are separated substantially from each other by the thin coating film.
Abstract:
A composite material is provided which includes a discrete phase including grains made of a first substance; and a continuous phase including a thin coating film made of a second substance and formed on the surface of each of the grains. The thin coating film has a mean thickness smaller than the mean particle size of the grains. The grains are separated substantially from each other by the thin coating film. The porosity of the composite material is 5% or less.
Abstract:
A magnetic material is provided which includes a discrete phase including grains made of a first substance which comprises a magnetic metal; and a continuous phase including a thin coating film made of a second substance which comprises a dielectric or insulating substance. The thin coating film is formed on the surface of the grains and has a mean thickness smaller than the mean particle size of the grains. The grains are separated substantially from each other by the thin coating film.
Abstract:
Tape contact surface of a magnetic head is made of magnetic substance of multi-layered structure; interface insulation material for said multi layered structure and/or gap spacer material are made of oxides, complex oxides, nitrides and carbides of transition metal elements, IIa group elements of the periodic table and Zn; and accumulation of magnetic material from magnetic tape is prevented and output of magnetic head is stabilized.
Abstract:
A standard member for automatically, stably, and highly accurately performing magnification calibration used in an electron microscope, the standard member including, on the same plane, a multilayer film cross section formed by alternately laminating materials different from each other, a plurality of first mark patterns arranged across a first silicon layer and in parallel to the multilayer film cross section, at least a pair of second mark patterns arranged across a second silicon layer thicker than the first silicon layer on the opposite side of the first mark patterns with respect to the multilayer film cross section and in parallel to the multilayer film cross section, and a silicon layer arranged on the outer side of the first mark patterns and the second mark patterns with respect to the multilayer film cross section.
Abstract:
In a method of manufacturing an electronic component built-in substrate of the present invention, a mounted body including a first insulating layer, a stopper metal layer formed under the first insulating layer of a portion corresponding to a component mounting region and a second insulating layer formed on a lower surface of the first insulating layer and covering the stopper metal layer is prepared, and a concave portion is obtained by penetration-processing a portion of the first insulating layer, which corresponds to the component mounting region to form an opening portion, while using the stopper metal layer as a stopper. Also, the stopper metal layer in the concave portion is removed, then an electronic component is mounted on the concave portion, and then a third insulating layer is formed on the electronic component.
Abstract:
A material suitable for improving the secondary electron emission coefficient of PDPs is provided to thereby enable a PDP to operate at a higher efficiency. Provided is a PDP (200) which includes a protective layer (7) formed by MgO and electron-emitting particles constituted of a crystalline compound dispersed on the protective layer (7) to form an electron emission layer (20). The electron-emitting particles are a crystalline compound whose primary components are indium, oxygen, and one or more selected from the group consisting of calcium, strontium, barium, and rare earth metals.
Abstract:
There are provided an upper electrode 18 and a lower electrode which are formed like flat plates, a dielectric layer interposed between the upper electrode and the lower electrode, and a covering portion which covers an external surface of at least one of the upper electrode and the lower electrode and is formed by an insulating resin. At least one of the upper electrode and the lower electrode is provided with at least one of opening holes having larger diameters than a via formed in a connection to a wiring pattern when a capacitor component is to be included in a substrate.