Abstract:
A method for fabrication of a circuit board laminate (10) in a continuous process employs an extruded laminate core (12). Streams of a fibrous material, microspheres or fused silica, a catalyst and a thermosetting resin are added to an extruder and the core extruded as a film; outer layers (18, 19) can be applied to the extruded core.
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:
Biodegradable printed circuit boards, or PCBs, may be produced from substrate sheets that include at least one biodegradable polymer. In addition, the electrical traces used on the PCBs, may also include a biodegradable polymer incorporated with an electrically conductive material. The PCBs may be composted to degrade the PCBs, and the electrically conductive material may be reclaimed for re-use.
Abstract:
Verbund material bestehend aus wenigstens einer Keramikschicht oder aus wenigstens einem Keramiksubstrat und aus wenigstens einer von einer Metallschicht gebildeten Metallisierung an einer Oberflächenseite des wenigstens einen Keramiksubstrates.
Abstract:
Bei einem Mehrschichtmaterial sind wenigstens zwei Komponenten über eine Klebeverbindung miteinander verbunden. Die Klebeverbindung ist von einer Nanofasermaterial enthaltenden Kleber- oder Bondschicht gebildet, die das Nanofasermaterial in einer als Kleber geeigneten Matrix enthält.
Abstract:
The present invention comprises microfiller-reinforced polymer films. Microfiller-reinforced polymer films are films having high aspect-ratio fillers incorporated therewith, which filler have a minor dimension less that 20 µm and a major dimension at least three times greater than the minor dimension.
Abstract:
Die vorliegende Erfindung betrifft Formmassen aus thermoplastischen Polymeren, beschlichteten Glasfasern und weiteren üblichen Zusatz- und Hilfsstoffen sowie deren Verwendung.
Abstract:
A sheet comprising thermoplastic polymer (TP) (4) and short high tensile modulus fibers (3) , in which the concentration of TP (4) in the middle of the sheet is higher than at the surface of the sheet, useful for making prepregs with a thermoset resin.
Abstract:
A printed circuit board composed of a low Tg epoxy filled with a low CTE filler in the range of 45 to 65 % by volume and laminated to electrically conductive sheets is presented. The printed circuit board of this invention does not include any woven or nonwoven fabrics. The printed circuit board is flexible in the sense that it can be bent to any desired multiplanar shape and will retain that shape after installation as required by electronic interconnection systems.