摘要:
A mullite ceramic composition comprises mullite powder as a raw material; at least one of a rare earth element compound and an alkaline earth element compound; and at least one of a Group 6B vanadium compound, niobium compound and a tantalum compound, and the mixture is fired.
摘要:
A sintered mullite-based body having an excellent dielectric constant and thermal expansion coefficient, and an improved flexural strength and surface smoothness, is obtained by heat treating a composition of 99.1 to 80% by weight of a mullite powder and 0.1 to 20% by weight of yttrium oxide as a sintering agent, optionally together with a colorant of MoO.sub.3.
摘要:
A ceramic package includes a high thermal conductive ceramic substrate (AlN or SiC sintered substrate) on which a semiconductor element is mounted, and a mullite sintered frame having metal conductive paths therein and joined to the substrate.
摘要:
A wiring substrate includes a composite substrate including an oxidized aluminum substrate portion in which a large number of penetration conductors penetrating in a thickness direction are provided, and a frame-like aluminum substrate portion provided around the oxidized aluminum substrate portion, and a wiring layer of n layers (n is an integer of 1 or more) connected to the penetration conductors.
摘要:
A base member includes: a core layer including: a plate-like body, made of aluminum oxide; and plural linear conductors, which penetrate through the plate-like body in a thickness direction of the plate-like body; a bonding layer, formed on at least one of a first surface and a second surface of the core layer; and a silicon layer or a glass layer, formed on the bonding layer.
摘要:
A wiring board includes a core substrate having a structure including an insulating base material and a large number of filamentous conductors densely provided in the insulating base material and piercing the insulating base material in a thickness direction thereof. Pads made of portions of wiring layers are oppositely disposed on both surfaces of the core substrate and electrically connected to opposite ends of a plurality of filamentous conductors in such a manner that the pads share the filamentous conductors. A wiring connection between one surface side and the other surface side of the core substrate is made through the pads. The insulating base material is made of an inorganic dielectric. Pads made of portions of the wiring layers are disposed on both surfaces of the core substrate and electrically connected only to corresponding one end sides of different groups each formed of a plurality of filamentous conductors.
摘要:
An inductor includes a core substrate including minute column-like electrical conductors extending between a front surface and a back surface of the core substrate. Each column-like electrical conductor is insulated from adjacent column-like electrical conductors by being surrounded by an insulating material. Insulation layers are formed on the front surface and the back surface of the core substrate, respectively. At least two connection electrical conductors extend through each of the insulation layers. Each connection electrical conductor is electrically connected to a plurality of the column-like electrical conductors. Wirings are formed on each of the insulation layers to connect said connection electrical conductors to each other electrically. The wirings, the connection electrical conductors and the column-like electrical conductors are connected to form a coil in a three-dimensional manner.
摘要:
A solid oxide fuel cell includes: a solid electrolyte; and electrodes on both surfaces of the solid electrolyte, wherein at least one of joint surfaces where the solid electrolyte and the electrodes are in contact with each other is a roughened surface having at least two different types of surface roughness.
摘要:
A wiring substrate includes a core substrate including an inorganic dielectric insulating base material having first and second surfaces, and linear conductors penetrating the insulating base; a first wiring layer on the first surface electrically connected to a portion of linear conductors; a second wiring layer on the second surface electrically connected to the portion of the linear conductors; a first insulating layer on the first surface covering the first wiring layer and including a first through-hole; a third wiring layer on the first insulating layer electrically connected to the first wiring layer via the first through-hole; a second insulating layer on the second surface covering the second wiring layer and including a second through-hole; and a fourth wiring layer on the second insulating layer electrically connected to the second wiring layer via the second through-hole.
摘要:
A wiring board includes a core substrate including an insulation base member; linear conductors configured to pierce from a first surface of the insulation base member to a second surface of the insulation base member; a ground wiring group including a first ground wiring formed on the first surface of the core substrate, and a belt-shaped second ground wiring formed on the second surface of the core substrate and electrically connected to the first ground wiring by way of a part of the linear conductors; and an electric power supply wiring group including a first electric power supply wiring formed on the first surface, and a second electric power supply wiring formed on the second surface and electrically connected to the first electric power supply wiring by way of a part of the plural linear conductors.