摘要:
A via in a printed circuit board is composed of a patterned metal layer that extends through a hole in dielectric laminate material that has been covered with catalytic adhesive material on both faces of the dielectric laminate material. The layer of catalytic adhesive coats a portion of the dielectric laminate material around the hole. The patterned metal layer is placed over the catalytic adhesive material on both faces of the dielectric laminate material and within the hole.
摘要:
A via in a printed circuit board is composed of a patterned metal layer that extends through a hole in dielectric laminate material that has been covered with catalytic adhesive material on both faces of the dielectric laminate material. The layer of catalytic adhesive coats a portion of the dielectric laminate material around the hole. The patterned metal layer is placed over the catalytic adhesive material on both faces of the dielectric laminate material and within the hole.
摘要:
Provided is a thermoplastic resin composition which is excellent in platability (appearance of plating), and keeps high reflectance even after thermal aging. A thermoplastic resin composition comprising: per (A) 100 parts by weight of a crystalline thermoplastic resin having a melting point, measured by differential scanning calorimetry (DSC) at a heating rate of 10° C./min, of 250° C. or above; (B) 10 to 80 parts by weight of a glass filler; (C) 1 to 30 parts by weight of a laser direct structuring additive having a reflectance at 450 nm of 25% or above; and (D) 20 to 150 parts by weight of titanium oxide.
摘要:
Conductive microparticles, each are composed of a polymer microparticle and a conductive layer formed by coating the surface of the polymer microparticle with a metal. The conductive microparticles have an elastic modulus (E) at 5% displacement of 1-100 MPa. Especially when the conductive microparticles have a shape recovery ratio (SR) of 0.1-13% under a load of 9.8 mN, a particle size distribution index of 1-3 and a particle size of 0.1-100 μm, the conductive microparticles can exhibit excellent conduction reliability in applications such as conductive adhesives for flexible boards.
摘要:
Conductive particles each includes a polymer base particle and a conductive layer coating the polymer base particle. Let the compressive elastic deformation characteristic KX of one conductive particle when the displacement of particle diameter of the conductive particles is X % be defined by the following formula: KX=(3/√2)·(SX−3/2)·(R−1/2)·FX. FX is the load (N) necessary for X % displacement of the conductive particles. SX is the compressive deformation amount (mm) upon X % displacement of the conductive particles. R is the particle radius (mm) of the conductive particles. The compressive elastic deformation characteristic K50 when the displacement of particle diameter of the conductive particles is 50% is 100 to 50000 N/mm2 at 20° C., and the recovery factor of particle diameter of the conductive particles when the displacement of particle diameter of the conductive particles is 50% is not less than 30% at 20° C.
摘要:
Illustrative embodiments of anisotropic conductive adhesive (ACA) and associated methods are disclosed. In one illustrative embodiment, the ACA may comprise a binder curable using UV light and a plurality of particles suspended in the binder. Each of the plurality of particles may comprise a ferromagnetic material coated with a layer of electrically conductive material. The electrically conducting material may form electrically conductive and isolated parallel paths when the ACA is cured using UV light after being subjected to a magnetic field.
摘要:
Structures and manufacturing processes of an ACF array and more particularly a non-random particles are transferred to the array of microcavities of predetermined configuration, shape and dimension. The manufacturing process includes fluidic filling of conductive particles surface-treated with a block copolymer composition onto a substrate or carrier web comprising a predetermined array of microcavities. The thus prepared filled conductive microcavity array is then over-coated or laminated with an adhesive film.
摘要:
An anisotropic conductive film includes an insulating adhesive resin layer, and a plurality of conductive particles located at the insulating adhesive resin layer and comprising acutely angled edges.
摘要:
Provided is a thermoplastic resin composition which is excellent in platability (appearance of plating), and keeps high reflectance even after thermal aging. A thermoplastic resin composition comprising: per (A) 100 parts by weight of a crystalline thermoplastic resin having a melting point, measured by differential scanning calorimetry (DSC) at a heating rate of 10° C./min, of 250° C. or above; (B) 10 to 80 parts by weight of a glass filler; (C) 1 to 30 parts by weight of a laser direct structuring additive having a reflectance at 450 nm of 25% or above; and (D) 20 to 150 parts by weight of titanium oxide.
摘要:
The present invention provides electrically and thermally conductive compositions for forming interconnections between electronic elements. Invention compositions comprise three or more metal or metal alloy particle types and an organic vehicle comprising a flux that is application specific. The first particle type includes a reactive high melting point metal that reacts with a reactive low melting point metal(s) in the other particles to form intermetallic species. The reactive low melting point metal(s) of the invention are provided in two distinct particle forms. The first reactive low melting point metal particle includes a carrier that facilitates the reaction with the reactive high melting point metal. The second reactive low melting point metal particle acts primarily as a source of the reactive low melting point metal. Combination of the three particle types provides several advantages including reduction of the undesirable characteristics of the carrier metal while preserving and, in some embodiments, enhancing, the advantageous facilitation of the metallic reaction.