Abstract:
A technique for anchoring carbon nanotube columns to a substrate can include use of a filler material placed onto the surface of the substrate into area between the columns and surrounding a base portion of each of the columns.
Abstract:
Disclosed is a process which comprises bringing an acidic organic substance or phosphoric acid into contact with a metal to form, on the surface of the metal, a layer that contains either an organic acid salt formed from both the acidic organic substance and the metal or a phosphoric acid salt formed from both the phosphoric acid and the metal. In the process, the layer can be selectively formed only on the surface of the metal. When the process is applied to the production of core-shell particles, neither agglomeration of the particles nor viscosity increase of the fluid occurs, while when the process is applied to the production of a covered metal-wiring circuit board, the layer can be selectively formed only in the metal area to be covered.
Abstract:
Three-dimensional structure (40) of the present invention includes first module board (28), second module board (37), and substrate joining member (10) that unifies board (28) and board (37) into one body, thereby electrically connecting these two elements together. The unification is done by molding the outer wall of housing (12) of substrate joining member (10) with resin (29). Substrate joining member (10) used in the three-dimensional structure (40) includes multiple lead terminals (14) made of conductive material, and a frame-shaped and insulating housing (12) to which frame the lead terminals (14) are fixed vertically in a predetermined array. Housing (12) includes projections (18) on at least two outer wall faces of its frame shape.
Abstract:
To reduce connection defects between a circuit substrate provided on a core substrate and a circuit to be mounted thereon, thereby improving reliability as a multilayered device mounting substrate. The device mounting substrate includes: a first circuit substrate composed of a substrate, an insulating layer formed on this substrate, and a first conductive layer (including conductive parts) formed on this insulating layer; and a second circuit substrate mounted on the first circuit substrate, being composed of a base, a second conductive layer (including conductive parts) formed on the bottom of the base, and a third conductive layer (including conductive parts) formed on the top of the base. Here, the first and second circuit substrates are bonded by pressure so that the first and second conductive parts are laminated and embedded together into the insulating layer. The first and second conductive parts form connecting areas in the insulating layer, thereby connecting the first and second circuit substrates electrically.
Abstract:
A mounting structure of an electronic component includes: a bump electrode included in the electronic component, the bump electrode having an internal resin as a core and a conductive film covering a surface of the internal resin, and elastically deforming so as to follow a shape of at least one corner of a terminal so that the conductive film makes direct conductive contact with at least part of a top surface of the terminal and at least part of a surface along a thickness direction of the terminal; a substrate having the terminal and the electronic component that is mounted on the substrate; and a holding unit provided to the substrate and the electronic component so as to hold a state in which the bump electrode electrically deformed makes conductive contact with the terminal.
Abstract:
A semiconductor package and a method of manufacturing the semiconductor package are provided. A semiconductor package according to the present general inventive concept may include a base substrate having one surface on which a connection terminal is formed and a first package substrate having a molding layer covering the base substrate. The molding layer faces a circumference of the connection terminal and includes a side surface having first and second surfaces having a circumference of a different size, respectively.
Abstract:
An electronic component mounting package includes a structure (coreless substrate) in which a plurality of wiring layers are stacked one on top of another with insulating layers interposed therebetween and are interconnected through via holes formed in the insulating layers. The entire surface of the coreless substrate, exclusive of pad portions defined at desired positions of the outermost wiring layers thereof, is covered with a molding resin. Further, an interposer is mounted on the side of the electronic component mounting surface of the coreless substrate, and the molding resin is partially filled into a gap between the coreless substrate and the interposer.
Abstract:
A printed board comprising a packaging surface on which an electronic component is packaged, an adhesion prohibited portion which is provided at a region of the printed board different from a region where the electronic component is provided, and to which adhesion of the adhesive material is prohibited, and a blocking step portion which is formed at a region between the region where the electronic component is provided and the region where the adhesion prohibited portion is provided, which blocks any adhesive material which has spilled out from between the bottom surface of the electronic component and the packaging surface from reaching the adhesion prohibited portion.
Abstract:
In accordance with an example embodiment of the present invention, a method, comprises receiving an integrated circuit component comprising at least one solder ball substantially surrounded by a first epoxy flux, applying a second epoxy flux to at least one integrated circuit component contact point of a printed circuit board, and performing a reflow process such that the integrated circuit component adheres to the printed circuit board and the first and second epoxy flux forms an encapsulating layer around at least one solder joint.
Abstract:
A semiconductor component including: a substrate, at least one semiconductor chip arranged on the substrate and at least one passive device likewise arranged on the substrate. The passive device is mounted with its underside on the substrate. The semiconductor component further includes an interspace disposed between the underside of the passive device and the substrate. The interspace is filled with an underfilling material. In order to avoid the solder pumping effect, the upper side and the lateral sides of the passive device are also embedded in a plastic compound.