摘要:
A slider including a magnetic head part, an optical waveguide, and a near field element is fixed by first and second adhesives to a submount on which a semiconductor laser and a mirror are mounted, the mirror being placed at one end of the semiconductor laser in a resonance direction thereof and reflecting a laser in a direction intersecting with the resonance direction. At this time, at least parts of the first and second adhesives are applied to a position opposed to the semiconductor laser with an intermediation of the submount. The first adhesive having a higher Young's modulus than that of the second adhesive is applied onto an inflow end side of the slider including a solder connection portion, the second adhesive being applied onto an outflow end side of the slider.
摘要:
In laser welding an optical part to a pickup case of an optical pickup device, outgas deposition on a lens surface can be inhibited, and positional shifting of the optical part can be reduced. The optical part has a lens surface facing in an optical axis direction and a protruding part formed, to be joined to the pickup case, at an end portion thereof in a direction perpendicular to the optical axis. A joint surface between the protruding part and the pickup case extends in a direction parallel to the optical axis, and the joint surface is fixed by a weld portion formed by laser irradiation. The joint surface is parallel to a bottom surface of the pickup case, and the height from the bottom surface is approximately equal to the height of the center of the lens surface.
摘要:
In a thermally assisted magnetic recording head (10A), a sub-mount (8A) on which a laser diode is mounted is arranged between an HGA (41) and a magnetic head slider (9). The sub-mount has a wiring line (81) which electrically connects a terminal (91) arranged on the magnetic head slider (9) and a terminal (411) arranged on the HGA (41).
摘要:
A multilayer printed circuit board includes an inner magnetic layer essentially consisting of magnetic material. The inner magnetic layer may be formed by an action of chemical bond or van der Waals force. The inner magnetic layer may comprise a plurality of magnetic units, each of which provides magnetism, and may be formed by magnetically coupling the magnetic units with each other by using a strong interaction. The inner magnetic layer may essentially consist of a ferrite film. The ferrite film may be formed directly on the inner conductive layer by means of an electroless plating method. The ferrite film may essentially consist of an oxide metal composition, the metal composition being represented by the formula of FeaNibZncCod, where: a+b+c+d=3.0; 2.1≦a≦2.7; 0.1≦b≦0.3; 0.1≦c≦0.7; and 0≦d≦0.15.
摘要翻译:多层印刷电路板包括基本由磁性材料组成的内部磁性层。 内部磁性层可以通过化学键或范德华力的作用形成。 内磁性层可以包括多个磁性单元,每个磁性单元提供磁性,并且可以通过使用强相互作用将磁性单元彼此磁耦合而形成。 内部磁性层可以基本上由铁氧体膜组成。 铁氧体膜可以通过化学镀方法直接形成在内导电层上。 铁氧体膜可以基本上由氧化物金属组合物组成,金属组成由式FeaNibZncCod表示,其中:a + b + c + d = 3.0; 2.1≦̸ a≦̸ 2.7; 0.1≦̸ b≦̸ 0.3; 0.1≦̸ c≦̸ 0.7; 和0≦̸ d≦̸ 0.15。
摘要:
In a thermally assisted magnetic recording head (10A), a sub-mount (8A) on which a laser diode is mounted is arranged between an HGA (41) and a magnetic head slider (9). The sub-mount has a wiring line (81) which electrically connects a terminal (91) arranged on the magnetic head slider (9) and a terminal (411) arranged on the HGA (41).
摘要:
A heating device capable of evenly heating a thermal recording medium without increasing the cost of the device is disclosed. The heating device evenly heats the recording surface of a thermally-reversible recording card by conducting the heat energy transferred from a heat generating member by way of a heating member, made of aluminum having high heat conductivity and high heat capacity characteristics. By this feature, it becomes possible to accurately erase the information recorded on the recording card and to use an inexpensive heat generating member as the heat generating member.
摘要:
Grain-oriented electrical steel sheet excellent in coating adhesion is provided. The steel sheet contains Si: 2 to 7% mass % and has a primary coating composed mainly of forsterite on its surface. A compound (A) containing one or more elements selected from among Ca, Sr and Ba, at least one rare earth metal, and sulfur is incorporated in the primary coating so as to reside in the interface layer between the primary coating and the steel sheet. As a result, occurrence of primary coating exfoliation at regions that are strongly worked during manufacture of a wound core transformer or the like is prevented.
摘要:
The present invention provides oriented magnetic steel plate with excellent coating adhesion, in particular coating edge peeling resistance, that is, oriented magnetic steel plate with excellent coating adhesion containing, by mass %, Si: 1.8 to 7% and having a primary coating having forsterite as its main ingredient on its surface, said oriented magnetic steel plate characterized in that said primary coating contains one or more of Ce, La, Pr, Nd, Sc, and Y in an areal weight per side of 0.001 to 1000 mg/m2; characterized in that said primary coating contains Ti in an areal weight per side of 1 to 800 mg/m2; and characterized in that said primary coating contains one or more of Sr, Ca, and Ba in an areal weight per side of 0.01 to 100 mg/m2.
摘要翻译:本发明提供了具有优异的涂层附着力,特别是涂覆边缘剥离性的取向磁性钢板,即具有优异的涂层粘合性的定向磁性钢板,以质量%计含有Si:1.8〜7%,并具有含镁橄榄石的初级涂层 作为其表面的主要成分,所述取向磁钢板的特征在于,所述初级涂层含有0.001至1000mg / m 2的每面重量的Ce,La,Pr,Nd,Sc和Y中的一种或多种; 其特征在于,所述初级涂层含有每面面积重量为1至800mg / m 2的Ti; 其特征在于,所述初级涂层含有每面面积重量为0.01至100mg / m 2的Sr,Ca和Ba中的一种或多种。
摘要:
An object of the present invention is to provide a grain-oriented electrical steel sheet with low core loss and low magnetostriction and a method for producing the same. The grain-oriented electrical steel sheet is excellent in reduced core loss and magnetostriction while under a high flux density of 1.9 T, comprises a refined magnetic domain comprising a laser irradiated portion which has melted and resolidified to form a solidified layer, wherein the thickness of the solidified layer is 4 μm or less. The grain-oriented electrical steel sheet may further comprise a laser irradiated portion where a surface roughness Rz is small and a cross section viewed from a transverse direction has a concave portion having a width of 200 μm or less and a depth of 10 μm or less for further improvement.
摘要:
In laser welding an optical part to a pickup case of an optical pickup device, outgas deposition on a lens surface can be inhibited, and positional shifting of the optical part can be reduced. The optical part has a lens surface facing in an optical axis direction and a protruding part formed, to be joined to the pickup case, at an end portion thereof in a direction perpendicular to the optical axis. A joint surface between the protruding part and the pickup case extends in a direction parallel to the optical axis, and the joint surface is fixed by a weld portion formed by laser irradiation. The joint surface is parallel to a bottom surface of the pickup case, and the height from the bottom surface is approximately equal to the height of the center of the lens surface.