Abstract:
A method for preparing particles to retain a charge such that the particles are rendered electrostatically or electrokinetically mobile. The method involves coating the particles with a coating medium which facilitates attachment of a charge director material, and contacting the particles with the coating medium thereon with a charge director medium to impart a positive or negative charge thereto and thereby render the particles electrostatically or electrokinetically mobile. Electrostatically and electrokinetically mobile particles for use in an electrostatic or electrokinetic deposition process. The particles include a coating medium and a charge director on particle bodies.
Abstract:
This invention provides such solder paste that prevents, when a minute-size passive component or a semiconductor integrated circuit element having a small terminal pitch is soldered by the solder paste, the solder particles from being oxidized to provide highly-reliable solder joint even when the solder paste is used in a very small amount. Specifically, solder paste obtained by mixing solder alloy powders with flux is structured so that the flux has, at a pre-heating temperature in a heating/melting step, a high temperature retention property by which the flux covers the surface of the solder alloy powders.
Abstract:
A liquid crystal display (LCD) device includes a LCD panel and a flexible wiring member coupled together by an anisotropic-conductive adhesive film (ACF). The ACF includes insulating resin and a plurality of conductive particles dispersed therein and each having an insulating film on a conductive body. The insulating film is broken by the thermal compression of the ACF during manufacture of the LCD device, thereby allowing terminals of the LCD panel and terminals of the flexible wiring member to be electrically coupled together.
Abstract:
The insulated conductive particles of the present invention comprise a resin core 41 having an average particle size of 1 to 10 μm, a Ni layer 42 coated on the surface of the resin core with a thickness of 0.01-0.1 μm, an Au layer 43 coated on the Ni layer with a thickness of 0.03-0.3 μm, and an inorganic insulating layer 44 coated on the Au layer with a thickness of 0.05-1 μm. An anisotropic conductive film of the present invention comprises the insulated conductive particles in the number of 10,000-80,000 per square millimeter (mm2).
Abstract:
A voltage variable material (“VVM”) including an insulative binder that is formulated to intrinsically adhere to conductive and non-conductive surfaces is provided. The binder and thus the VVM is self-curable and applicable in a spreadable form that dries before use. The binder eliminates the need to place the VVM in a separate device or to provide separate printed circuit board pads on which to electrically connect the VVM. The binder and thus the VVM can be directly applied to many different types of substrates, such as a rigid (FR-4) laminate, a polyimide or a polymer. The VVM can also be directly applied to different types of substrates that are placed inside a device. In one embodiment, the VVM includes doped semiconductive particles having a core, such which can be silicon, and an inert coating, which can be an oxide. The particles are mixed in the binder with conductive particles.
Abstract:
Disclosed are liquid crystalline polymer compositions, which are melt moldable, and which contain a perfluorinated polymer, and a particulate aramid, and optionally contain hollow glass or quartz spheres, and which usually have low dielectric constants. They are particularly useful as electrical connectors and substrates for other electronic applications which use high frequency signals.
Abstract:
A microencapsulated particulate metal material includes metal particles, a polymer coating the metal particles, and an ionic group provided on a surface of the polymer.
Abstract:
The main object of the present invention is to provide a conductive pattern formed body with a conductive pattern formed efficiently and highly precisely in a simple process, a conductivity variable laminated body used for formation of the conductive pattern, and the like. To attain the object, the invention provides a conductivity variable composition characterized by containing insulating particle including a conductive inorganic material and an organic material adhered on the circumference of the conductive inorganic material, and a photocatalyst.
Abstract:
An objective of the invention is to provide a coated conductive particle having superior connection reliability, a method for manufacturing such coated conductive particle, an anisotropic conductive material and a conductive-connection structure. A coated conductive particle comprising a particle having a surface made of conductive metal and an insulating particles to coat the surface of the particle having the surface made of conductive metal there with, wherein the insulating particles are chemically bonded to the particle having the surface made of conductive metal via a functional group (A) having a bonding property to the conductive metal so that a single coating layer is formed.
Abstract:
A curable composition for forming anisotropically conductive bonds comprising: (i) an amount of first substantially uncured curable component; (ii) conductive particles coated with a substantially uniformly thick coating of the cure product of a second curable component dispersed within the first curable cyanoacrylate component. The composition is suitable for use as an adhesive composition for bonding chips to electronic circuits. Desirably the first component and the second component are both cyanoacrylates.