Abstract:
A resin composition for forming conductor patterns comprising a photo curable resin, a photopolymerization initiator, a thermosetting resin, photosensitive semiconductor particles, and if necessary a polyfunctional unsaturated compound is suitable for forming very fine conductor patterns in a build-up method.
Abstract:
A circuit board of which the main wires (2), which are conventionally printed, by silk screening on one side of a polyester film (1), are covered and protected by a second film of polyester (5) which also covers the holes (1a) made in the film (1) at the various intersection points at which the electric contact is made between the main and secondary wires (4), which are subsequently silk-printed on the other side of the film (1) and if necessary covered by a layer of protecting varnish (6).
Abstract:
A resin composition comprising 5-60% by weight of fibre obtained by melt spinning an aromatic polyester which exhibits anisotropy when melted and 40-95% by weight of a thermoplastic resin can provide a circuit board which suffers a lineal dimensional change no more than 1% when immersed in a soldering alloy bath at 260°C for 5 seconds and which is also light in weight, nonhygroscopic and has excellent electrical properties.
Abstract:
A resin composition comprising a polyphenylene ether (A) having a number average molecular weight of 500 to 5000; a cyclophosphazene compound (B); a non-halogen-based epoxy resin (C); a cyanate compound (D); and a filler (E).
Abstract:
The present invention relates to a curved-type rigid board and a manufacturing method thereof. According to the present invention, it is possible to maximize space utilization in a portable terminal by easily applying a three-dimensional antenna to the portable terminal by means of a curved-type rigid board having a curved state with a certain curvature.
Abstract:
A resin composition comprising a polyphenylene ether (A) having a number average molecular weight of 500 to 5000; a cyclophosphazene compound (B); a non-halogen-based epoxy resin (C); a cyanate compound (D); and a filler (E).
Abstract:
The present invention discloses a phenoxycyclotriphosphazene active ester, a halogen-free resin composition and uses thereof. The phenoxycyclotriphosphazene active ester comprises at least 65 mol.% of a substance having the following structural formula. The halogen-free resin composition comprises 5-50 parts by weight of a phenoxycyclotriphosphazene active ester, 15-85 parts by weight of a thermosetting resin, 1-35 parts by weight of a curing agent, 0-5 parts by weight of a curing accelerator and 0-100 parts by weight of an inorganic filler. The present invention discloses introducing phenoxycyclotriphosphazene active ester into a thermosetting resin, reacting active esters with thermosetting resins, such as epoxy resin, without producing hydroxy groups, which not only satisfies the requirements on being halogen-free and flame retardancy, but also improves the electrical properties (decreasing and stabilizing Dk and Df) of the system, so as to make non-halogenation of high frequency and high speed substrate materials possible.
Abstract:
There is disclosed a transparent conductor comprising a substrate and a conductive layer on the substrate, the conductive layer including a plurality of metal nanowires and a matrix.