摘要:
A ground conductor and a signal conductor are provided in an insulating magnetic body respectively. The insulating magnetic body is a compound member that combines ferromagnetic metal particles and an insulating resin. A signal transmission element, a connector or a circuit board with high frequency stopping and low pass characteristics which will ensure reliable absorption of high frequency components in the high frequency range, can be provided.
摘要:
A ground conductor and a signal conductor are provided in an insulating magnetic body respectively. The insulating magnetic body is a compound member that combines ferromagnetic metal particles and an insulating resin. A signal transmission element, a connector or a circuit board with high frequency stopping and low pass characteristics which will ensure reliable absorption of high frequency components in the high frequency range, can be provided.
摘要:
A ground conductor and a signal conductor are provided in an insulating magnetic body respectively. The insulating magnetic body is a compound member that combines ferromagnetic metal particles and an insulating resin. A signal transmission element, a connector or a circuit board with high frequency stopping and low pass characteristics which will ensure reliable absorption of high frequency components in the high frequency range, can be provided. The ground conductor and the signal conductor are provided on opposite sides of the insulating magnetic body.
摘要:
Magnetic material has a ceramics having a composition in the range of Fe2O3 35.0 to 44.5 mol %, NiO 47.0 to 56.5 mol % and CuO 5.0 to 12.0 mol %, and the ceramics having relative magnetic permeability of 15 or less, and composes the inductance element comprising this magnetic material and the internal metallic conductor. For making laminated inductance elements by concurrently baking ceramic green sheets and internal metallic conductors, substances to be used as ceramic green sheets, which substances have the composition in the above mentioned range are used, and a silver or silver alloys are used as the internal metallic conductor, and the calcination is carried out at temperature of 880 to 920° C.
摘要:
A photo-resist 11 of a dry film 10 is patterned to form opening portions 111 and non-opening portions 112 (see FIG. 1(a)). An electrically conductive paste 21 is applied by a doctor blade 31 (see FIG. 1(b)) and thereafter is dried (see FIG. 1(c)). Then, a release film 12 of the dry film 10 is removed (see FIG. 1(d)) and thereafter the dry film 10 is adhered to a ceramic green sheet 41 (see FIG. 1(e)). The photo-resist 11 is removed from the ceramic green sheet 41 to form an electrically conductive film 42 on the ceramic green sheet 41 (see FIG. 1(e)). The ceramic electronic component is manufactured by sintering the ceramic green sheet 41 having the electrically conductive film 41 formed.
摘要:
A method for manufacturing radio frequency module components with a surface acoustic wave element includes a gold plating step of plating gold at a component bonded portion on a conductive surface of a ceramic multi-layer substrate 40 to have a mounted electrode 43, a surface acoustic wave element mounting step of face down bonding a flip chip 30 as the surface acoustic wave element on the ceramic multi-layer substrate 40 by the gold—gold connection, a side wall formation step of bonding a side wall member 60 surrounding the flip chip 30 onto the ceramic multi-layer substrate 40 by adhesives, a lid formation step of bonding a lid member 61 enclosing an opening of the side wall onto the side wall member by adhesives, after mounting the flip chip 30, and a soldered component mounting step of mounting a soldered component 50 by the use of solder, after the lid formation step.
摘要:
The surface acoustic wave elements and the other surface mounting elements are mounted on a ceramic multi-layer substrate. The surface acoustic wave elements may be flip chips face-down-bonded to the gold coated mounting electrodes of the multi-layer ceramic substrate by gold-to-gold bonding. At least the surface acoustic wave elements are covered as sealed airtight with the side walls fixed to the multi-layer ceramic substrate and a cover closing the opening of the side walls.
摘要:
An inductor device including a device body having a plurality of insulating layers; a plurality of conductive coil pattern units formed inside the device body between insulating layers along a single planar direction, coil pattern units adjoining each other in the single plane being centro-symmetric patterns with respect to a center point of a boundary line between unit sections containing coil pattern units; and connection portions connecting upper and lower coil pattern units separated by the insulating layers to form a coil. It is possible to obtain an inductor device able to suppress the stack deviation without complicating the production process even if the device is made small in size.
摘要:
A multi-layer ferrite chip inductor array, wherein an element main body 11 is composed by laminating a ferrite layer and a conductor layer in such a manner that the laminated face thereof is vertical with an element mounting surface 15, a plurality of coil shaped internal conductors are furnished within the element main body 11, the coiling direction of said coil shaped internal conductor being parallel with the element mounting surface, and the ferrite sheets formed with through-holes are printed with a plurality of coil shaped internal conductors and conductor patterns with the electrically conductive material, and the ferrite sheets are laminated such that the laminated face thereof is vertical with the element mounting surface. This realization of the invention depends on the production method having the process enabling to obtain the laminated body where the plurality of coil shaped internal conductors are formed, the coiling direction of said conductors being parallel with said element mounting surface.
摘要:
In the multilayer inductor, the substrate thereof is composed of a constituent belonging to spinel ferrite, and is furnished with internal conductors of a main constituent being silver at the interior of the substrate. The internal conductors are drawn outside of the substrate, and the drawn portions are provided with external electrodes. The internal conductors contain manganese and bismuth, and the manganese and bismuth contents at an interface between the internal conductors and the substrate are more than those of other ranges. MnO2 of 0.02 to 0.1 wt % and Bi2O3 of 0.5 to 1.2 wt % are added to a paste of the main constituent being silver to be used to the internal conductors, and the paste is baked together with spinel ferrite material.
摘要翻译:在多层电感器中,其基板由属于尖晶石型铁氧体的构成构成,并且在基板的内部配备有主要成分为银的内部导体。 内部导体被拉出到基板的外部,并且拉出部分设置有外部电极。 内部导体含有锰和铋,内部导体和基板之间的界面处的锰和铋含量大于其他范围。 将0.02〜0.1重量%的MnO 2和0.5〜1.2重量%的Bi 2 O 3添加到用于内部导体的主要成分为银的糊料中,并将该糊料与尖晶石铁氧体材料一起烘烤。