Abstract:
PROBLEM TO BE SOLVED: To provide a constraining green sheet and a manufacturing method of a multi-layer ceramic substrate using the same. SOLUTION: There is provided the constraining green sheet including: a first constraining layer having a surface disposed on one of the top and bottom surfaces of a ceramic laminated body and containing first inorganic powder; and a second constraining layer disposed on the top of the first constraining layer and containing second inorganic powder and a fly ash. Also, there is provided the manufacturing method of the multi-layer ceramic substrate including: a step of providing a non-sintered ceramic laminated body including a plurality of ceramic green sheets; a step of providing at least one constraining green sheet including the first constraining layer containing the first inorganic powder and the second constraining layer containing the second inorganic powder and the combustion material; a step of disposing the constraining green sheet by bonding a surface of the first constraining layer to one of top and bottom parts of the ceramic laminated body; and a step of sintering the ceramic laminated body at a predetermined sintering temperature. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
A capacitive touch-sensitive device includes a sensor electrode layer, a signal trace layer, a flexible circuit board and an electrically-conductive adhesive layer. The sensor electrode layer includes electrically isolated sensor lines. The signal trace layer includes electrically isolated signal lines, each having an outer terminal portion coupled to a respective one of the sensor lines. The flexible circuit board has isolated mutually bonding pads, each corresponding to the outer terminal portion. The electrically-conductive adhesive layer includes a plurality of zones, each having a first adhesive matrix and first conductors dispersed therein. The first conductors bridge the outer terminal portion to the bonding pad.
Abstract:
To provide: an electronic component which comprises a copper electrode on an inorganic material substrate and wherein the adhesion strength between the substrate and the copper electrode is high, thereby achieving improved adhesion of the copper electrode; and a method for manufacturing this electronic component. An electronic component which comprises a copper electrode on an inorganic material substrate and wherein an interface layer containing copper, manganese, silicon and oxygen is provided at the interface between the substrate and the copper electrode, and the interface layer contains crystal grains that are mainly formed of copper and dispersed in the interface layer. A method for manufacturing this electronic component comprises: an interface layer formation step for forming an interface layer on the substrate; and an electrode formation step for forming the copper electrode on the interface layer.
Abstract:
Provided is a silicon nitride substrate capable of enhancing the bond strength when a member made of a metal is bonded to the substrate, and a circuit substrate and an electronic device capable of improving reliability by using the silicon nitride substrate. The silicon nitride substrate 1 comprises a substrate 1a comprising a silicon nitride sintered body, and a plurality of granular bodies 1b containing silicon and integrated to a principal surface of the substrate 1a, wherein a plurality of needle crystals 1c or column crystals 1d comprising mainly silicon nitride are extended from a portion of the granular bodies 1b. A brazing material is applied to a principal surface of the substrate 1a, and a circuit member and a heat radiation member are arranged on the applied brazing material, and bonded by heating. Because of a plurality of granular bodies 1b integrated to the principal surface of the substrate 1a, and a plurality of the needle crystals 1c or the column crystals 1d extended from a portion of the granular bodies 1b, a high anchor effect is produced so that the circuit member and the heat radiation member are firmly bonded to the silicon nitride substrate 1.
Abstract:
To provide a wiring substrate that meets the demand for improving connection reliability with an electronic component, a component embedded substrate that incorporates an embedded component into the wiring substrate, and a package structure in which an electronic component is mounted on the wiring substrate or the component embedded substrate. [Solution] The wiring substrate is provided with a metal plate (2), and a wiring layer (5) that has a plurality of insulating layers (3) and a conductive layer (4) arranged on the plurality of insulating layers (3) and is arranged on at least one principal surface of the metal plate (2). The plurality of insulating layers (3) in the wiring layer (5) has a first insulating layer (6) which is provided so as to contact the principal surface of the metal plate (2) and has a larger thermal expansion rate in the planar direction than the metal plate (2) and a second insulating layer (7) which is laminated on the first insulating layer (6) so as to contact the first insulating layer (6) and has smaller thermal expansion rate in the planar direction than the metal plate (2). The first insulating layer (6) includes a resin (8). The second insulating layer (7) includes a plurality of first particles (10) that are made of an inorganic insulating material and mutually connected, and has a part of the first insulating layer (6) arranged in a gap between the plurality of first particles (10).
Abstract:
A capacitive touch-sensitive device includes a sensor electrode layer, a signal trace layer, a flexible circuit board and an electrically-conductive adhesive layer. The sensor electrode layer includes electrically isolated sensor lines. The signal trace layer includes electrically isolated signal lines, each having an outer terminal portion coupled to a respective one of the sensor lines. The flexible circuit board has isolated mutually bonding pads, each corresponding to the outer terminal portion. The electrically-conductive adhesive layer includes a plurality of zones, each having a first adhesive matrix and first conductors dispersed therein. The first conductors bridge the outer terminal portion to the bonding pad.
Abstract:
To provide a wiring substrate that meets the demand for improving connection reliability with an electronic component, a component embedded substrate that incorporates an embedded component into the wiring substrate, and a package structure in which an electronic component is mounted on the wiring substrate or the component embedded substrate. [Solution] The wiring substrate is provided with a metal plate (2), and a wiring layer (5) that has a plurality of insulating layers (3) and a conductive layer (4) arranged on the plurality of insulating layers (3) and is arranged on at least one principal surface of the metal plate (2). The plurality of insulating layers (3) in the wiring layer (5) has a first insulating layer (6) which is provided so as to contact the principal surface of the metal plate (2) and has a larger thermal expansion rate in the planar direction than the metal plate (2) and a second insulating layer (7) which is laminated on the first insulating layer (6) so as to contact the first insulating layer (6) and has smaller thermal expansion rate in the planar direction than the metal plate (2). The first insulating layer (6) includes a resin (8). The second insulating layer (7) includes a plurality of first particles (10) that are made of an inorganic insulating material and mutually connected, and has a part of the first insulating layer (6) arranged in a gap between the plurality of first particles (10).
Abstract:
A method of manufacturing an organic substrate used for printed circuits, which includes the steps of forming through-holes (3) in a porous raw material (2) provided with free tackness films (1) and having compressive shrinkage, filling electro-conductive paste (4) into the through-holes (3), separating the free tackness films (1) from the porous raw material (2) filled with the electro-conductive paste (4) in its through-holes (3), applying metal foils (5) onto the surfaces of the porous raw material (2) from which the free tackness films (1) have been separated, and compressing the porous raw material (2) applied with the metal foils (5) through heating and pressurization, whereby the electro-conductive substances in the electro-conductive paste (4) are connected for electrical connection between the metal foils (5).