摘要:
A ring-type magnetic head is of a structure in which a metallic magnetic film is sandwiched between two substrates, and the metallic magnetic film has a saturation magnetic field not less than 50 A/m in all directions parallel to a film plane thereof. Where the metallic magnetic film is a Co-containing magnetically soft film having a crystallization temperature Tx greater than the Curie temperature Tc, the metallic magnetic film is subjected to a first heat treatment at a temperature not less than Tc and a second heat treatment at a temperature Ta of Tc-180.degree. C..ltoreq.Ta.ltoreq.Tc-30.degree. C. in the absence of any applied magnetic field. Where the metallic magnetic film is a Co-containing magnetically soft film having a crystallization temperature Tx less than the Curie temperature Tc, the metallic magnetic film is subjected to a first heat treatment at a temperature not greater than Tx while a rotating magnetic field is being applied thereto and a second heat treatment at a temperature Ta of Tx-200.degree. C..ltoreq.Ta.ltoreq.Tx-50.degree. C. in the absence of any applied magnetic field.
摘要翻译:环形磁头具有将金属磁性膜夹在两个基板之间的结构,并且该金属磁性膜在与其膜平面平行的所有方向上具有不小于50A / m的饱和磁场。 在金属磁性膜是结晶化温度Tx大于居里温度Tc的含Co磁性软膜的情况下,金属磁性膜在不低于Tc的温度下进行第一次热处理,在 在没有任何施加的磁场的情况下,Tc-180℃的温度Ta Ta = Tc-30℃。 当金属磁性膜是结晶温度Tx小于居里温度Tc的含Co磁性软膜时,金属磁性膜在不大于Tx的温度下进行第一次热处理,同时旋转磁场为 在不存在任何施加的磁场的情况下,在Tx-200℃的温度Ta下进行第二次热处理。 = Ta Tx-50℃。
摘要:
A ring-type magnetic head is of a structure in which a metallic magnetic film is sandwiched between two substrates, and the metallic magnetic film has a saturation magnetic field not less than 50 A/m in all directions parallel to a film plane thereof; the direction of lamination of the sandwich is generally perpendicular to a gap-forming surface of the head; where the metallic magnetic film is a Co-containing magnetically soft film having a crystallization temperature Tx greater than the Curie temperature Tc, the metallic magnetic film is subjected to a first heat treatment at a temperature not less than Tc and a second heat treatment at a temperature Ta of Tc-180.degree. C..ltoreq.Ta.ltoreq.Tc-30.degree. C. in the absence of any applied magnetic field; where the metallic magnetic film is a Co-containing magnetically soft film having a crystallization temperature Tx less than the Curie temperature Tc, the metallic magnetic film is subjected to a first heat treatment at a temperature not greater than Tx while a rotating magnetic field is being applied thereto and a second heat treatment at a temperature Ta of Tx-200.degree. C..ltoreq.Ta.ltoreq.Tx-50.degree. C. in the absence of any applied magnetic field.
摘要翻译:环形磁头具有金属磁性膜夹在两个基板之间的结构,并且金属磁性膜在与其膜平面平行的所有方向上具有不小于50A / m的饱和磁场; 夹层的层压方向一般垂直于头部的间隙形成表面; 其中金属磁性膜是结晶温度Tx大于居里温度Tc的含Co磁性软膜,金属磁性膜在不低于Tc的温度下进行第一次热处理,在 在没有任何施加的磁场的情况下,Tc-180℃的温度Ta Ta = Tc-30℃。 其中金属磁性膜是具有低于居里温度Tc的结晶温度Tx的含Co磁性软膜,金属磁性膜在不大于Tx的温度下进行第一次热处理,同时旋转磁场为 在不存在任何施加的磁场的情况下,在Tx-200℃的温度Ta下进行第二次热处理。 = Ta Tx-50℃。
摘要:
The present invention aims to provide a surface-treated phosphor having high dispersibility and capable of significantly enhancing moisture resistance without deteriorating the fluorescence properties, and a method for producing the surface-treated phosphor. The surface-treated phosphor includes: a phosphor body; and a surface treatment layer containing at least one specific element selected from elements of the third to sixth groups of the periodic table, and fluorine, the phosphor body having the surface treatment layer on the surface thereof, wherein, when a cross section of the surface treatment layer is subjected to a thickness-wise elemental distribution analysis by a combination of an electron microscopic analysis and an energy-dispersive X-ray element analysis, a peak indicating the maximum content of the specific element appears nearer to the surface than a peak indicating the maximum fluorine content.
摘要:
It is an object of the present invention to provide a multilayer circuit board, and a method for manufacturing the same, in which a plurality of circuit boards are layered, wherein as regards at least one circuit board positioned on an outer side, a conductive substance is filled into holes passing through the circuit board in the thickness direction and cured, and the wiring layers of the plurality of circuit boards are electrically connected by the conductive substance that has been cured, wherein in the multilayer circuit board, the wiring layer positioned outside the conductive substance that has been cured projects outward from its surroundings. Thus, the conductive paste is sufficiently compressed during hot pressing to yield a stable electrical connection, and thermosetting resin can be filled in between the inner layer wiring pattern without leaving gaps.
摘要:
The present invention provides a method of manufacturing a printed circuit board, which includes preparing a dielectric substrate, coating surfaces of the dielectric substrate, filling a via hole with a conductor, peeling mold-releasing films, compressing the dielectric substrate and forming metal foils. The dielectric substrate has patterned wiring layers on both surfaces, and the wiring layers are connected electrically with each other by the conductor. The dielectric substrate is made of a glass cloth or a glass nonwoven fabric impregnated with a thermosetting epoxy resin mixed with fine particles, and the conductive filler in the conductor has an average particle diameter larger than that of the fine particles. Accordingly, the printed circuit board has an improved moisture resistance as a whole and also excellent connection reliability and repair resistance. In addition, the dielectric substrate of the printed circuit board has an improved mechanical strength such as flexural rigidity.
摘要:
Removable mask films 303 are formed on the both sides of the substrate having the adhesive layer 302 by applying and drying a resin varnish 304 including a ultraviolet-absorbing agent, and fine through holes 306 are formed by using a third harmonics YAG solid-state laser light with a relatively short wavelength not longer than that in the ultraviolet range in such a way that the effects of such a residual strain as the conventional embodiment forming a removable mask film by a laminating process may be decreased as well as the more fine hole drilling compared with conventional embodiment using the carbon dioxide gas laser with a relatively long wavelength may be performed.
摘要:
A circuit board is configured so as to include not less than two wiring layers, an insulator layer for electric insulation between the wiring layers, and an inner-via-hole conductive member provided in the insulator layer in a thickness direction of the insulator layer, for electric connection between the wiring layers. The insulator layer is made of a composite material containing an organic resin and a material having a smaller thermal expansion coefficient than that of the organic resin, and includes a surface part, a core part, and a surface part laminated in the stated order, the surface part having a high content of the organic resin, the core part having a low content of the organic resin. The wiring layers have a land portion that is connected with the inner-via-hole conductive member, the land portion being embedded so as to be substantially in contact with the core part, and the inner-via-hole conductive member has a thickness substantially equal to a thickness of the core part. According to this configuration, a part of the metal foil is embedded in the insulator layer so as to be in contact with the core layer. Therefore, this makes it possible to provide a circuit board in which portions of the conductive material can be selectively compressed, and which hence is capable of ensuring stable connection between layers.
摘要:
The present provides a method for preparing resin fine particles of a homogeneous particle size used in the fields of chemistry, medicine, electronic material or the like, resin fine particles, and a production apparatus for resin fine particles.The present invention provides a method for preparing a resin fine particle, which comprises discharging a liquid comprising a polymerizable monomer as a dispersion phase into a continuous phase; splitting the liquid comprising the polymerizable monomer by applying mechanical vibration to form a liquid droplet; and polymerizing the liquid droplet in a state without splitting or integrating the liquid droplet, said method comprising recognizing a state of said liquid being split into a liquid droplet, and a condition of said discharging and/or said mechanical vibration of the liquid being determined by feedback from a result of the recognition.
摘要:
It is an object of the present invention to provide a multilayer circuit board, and a method for manufacturing the same, in which a plurality of circuit boards are layered, wherein as regards at least one circuit board positioned on an outer side, a conductive substance is filled into holes passing through the circuit board in the thickness direction and cured, and the wiring layers of the plurality of circuit boards are electrically connected by the conductive substance that has been cured, wherein in the multilayer circuit board, the wiring layer positioned outside the conductive substance that has been cured projects outward from its surroundings. Thus, the conductive paste is sufficiently compressed during hot pressing to yield a stable electrical connection, and thermosetting resin can be filled in between the inner layer wiring pattern without leaving gaps.
摘要:
There is provided a wiring substrate for intermediate connection comprising: (1) a wiring board having a plurality of wiring layers which are connected through a via hole conductor(s) with each other; and (2) a prepreg sheet having a via hole conductor(s) at a predetermined position(s) which sheet is disposed on at least one side of the wiring board.