Abstract:
The present invention provides a coated fiber strand comprising at least one fiber having a layer of a dried residue of a resin compatible coating composition on at least a portion of a surface of the at least one fiber, the resin compatible coating composition comprising: a) a plurality of discrete, dimensionally stable particles formed from materials selected from the group consisting of organic materials, polymeric materials, composite materials and mixtures thereof that provide an interstitial space between the at least one fiber and at least one adjacent fiber, the particles having an average particle size of about 0.1 to 5 micrometers; b) at least one lubricious material; c) at least one polymeric film former; and d) at least one coupling agent, and a fabric incorporating at least one of the fiber strands.
Abstract:
The invention aims at providing a resin composition for electronic parts which is in great demand as a circuit board material for electric and electronic equipments, and which has a low dielectric constant, low dielectric dissipation factor and a thermal resistance. This resin consists of a thermoplastic resin or a thermosetting resin, and wollastonite or zonotolite, fibrous material containing CaO.SiO2 as a main component, mixed as reinforcing fiber with the resin at a mixing ratio of 5-60 % based on the total weight of the resin and fiber.
Abstract:
A prepreg, a printed circuit board and a method of manufacturing the same are provided. A prepreg includes a core layer including nanofibers having a thickness in a range of 10 to 100 nm, a first insulating layer on a first surface of the core layer, and a second insulating layer on a second surface of the core layer.
Abstract:
An electronic apparatus includes a first electronic part with a first terminal, a second electronic part with a second terminal opposite the first terminal, and a joining portion which joins the first terminal and the second terminal. The joining portion contains a pole-like compound extending in a direction in which the first terminal and the second terminal are opposite to each other. The joining portion contains the pole-like compound, so the strength of the joining portion is improved. When the first terminal and the second terminal are joined, the temperature of one of the first electronic part and the second electronic part is made higher than that of the other. A joining material is cooled and solidified in this state. By doing so, the pole-like compound is formed.
Abstract:
A resin composition for packaging, an insulating film and a printed circuit board manufactured with the resin composition, and a method of manufacturing a printed circuit board with the resin composition are provided. The resin composition for packaging includes an epoxy resin, and inorganic filler particles dispersed in the epoxy resin, and an aspect ratio of the inorganic filler particles is 1.0 or more and 3.0 or less.
Abstract:
A silicon nitride substrate comprises a substrate comprising a silicon nitride sintered body, and a plurality of granular bodies containing silicon and integrated to a principal surface of the substrate, wherein a plurality of needle crystals or column crystals comprising mainly silicon nitride are extended from a portion of the granular bodies. A brazing material is applied to a principal surface of the substrate, 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 integrated to the principal surface of the substrate, and a plurality of the needle crystals or the column crystals extended from a portion of the granular bodies, a high anchor effect is produced so that the circuit member and the heat radiation member are firmly bonded to the silicon nitride substrate.
Abstract:
The present invention relates to a printed circuit board arrangement and a method for forming an electrical connection at a printed circuit board. The printed circuit board arrangement comprises a printed circuit board having an electrical connection electrically connecting a first conductive layer on a first side of the printed circuit board and a second conductive layer on a second side of the printed circuit board. The electrical connection comprises a passage extending from an opening in one of the sides of the printed circuit board through the printed circuit board between the first and second layers. Electrically conducting material is formed on the walls of the passage and forms a first path electrically connecting the first conductive layer with the second conductive layer. At least one first ball is enclosed by the passage and forms part of a second electrical path between the first and second conductive layers of the printed circuit board, said second electrical path having a lower resistance than the first path.
Abstract:
An exemplary implementation of the present disclosure includes a programmable interposer having top and bottom interface electrodes and conductive particles interspersed within the programmable interposer. The conductive particles are capable of forming an aligned configuration between the top and bottom interface electrodes in response to application of an energy field to the programmable interposer so as to electrically connect the top and bottom interface electrodes. The conductive particles can have a conductive outer surface. Also, the conductive particles can be spherical. The conductive particles can be within a bulk material in an interface layer in the programmable interposer, and the bulk material can be cured to secure programmed paths between the top and bottom interface electrodes.
Abstract:
This conductive paste is such that the printing properties and sintering properties are superior and is formed such that resistance of wiring after sintering is lowered. This conductive paste is characterized by being formed from copper-based metal particles and by an aspect ratio (dmax/dmin), which is defined as the ratio of the maximum diameter (dmax) and minimum diameter (dmin) for the metal particles, being greater than or equal to 1.0 and smaller than 2.2.
Abstract:
A transparent conductor including a conductive layer coated on a substrate is described. More specifically, the conductive layer comprises a network of nanowires that may be embedded in a matrix. The conductive layer is optically clear, patternable and is suitable as a transparent electrode in visual display devices such as touch screens, liquid crystal displays, plasma display panels and the like.