Abstract:
An anisotropic conductive adhesive composition comprising an insulating adhesive component and particles dispersed in said insulating adhesive component, said anisotropic conductive adhesive composition being characterized in that said insulating adhesive component comprises a copolymer of acrylic ester having an alkyl group of 1-4 carbon atoms and a maleimide derivative, 5 to 60 parts by weight, based on 100 parts by weight of the copolymer, of a thermosetting resin, and 0.05 to 5.0 parts by weight, based on 100 parts by weight of the copolymer, of a coupling agent, and said particles are metallic-layer containing particles comprising a core made of resin, a metallic layer covering said core and a resin layer formed from finely divided resin fixed by the dry blending method on the surface of said metallic layer.
Abstract:
A connection electrodes (12) producing method has a step of forming resin layer (13) which can be softened after hardened, on a circuit substrate (11) on which an electrode pattern is formed. Then, only the resin layer material on the electrode pattern is cured and left. Thereafter, conductive particles (14) are adhered to only the resin layer on the electrode pattern by softening the resin layer and by scattering the conductive particles on the circuit substrate with the softened resin layer.
Abstract:
A composition (18) comprising (A) an epoxy resin type adhesive, (B) particles obtained by coating a nucleus of a curing agent with a film, (C) pressure-deformable electroconductive particles (3) having an average particle size larger than that of the particles (B), and if necessary (D) rigid particles having an average particle size smaller than that of the particles (B), is effective for connecting circuits electrically or connecting a semiconductive chip (11) to a wiring substrate (14).
Abstract:
A composition (18) comprising (A) an epoxy resin type adhesive, (B) particles obtained by coating a nucleus of a curing agent with a film, (C) pressure-deformable electroconductive particles (3) having an average particle size larger than that of the particles (B), and if necessary (D) rigid particles having an average particle size smaller than that of the particles (B), is effective for connecting circuits electrically or connecting a semiconductive chip (11) to a wiring substrate (14).
Abstract:
The invention relates inter alia to a method for producing an arrangement, in which (a) a first electrical component (60) is arranged on a first carrier (10), (b) a second electrical component (260) is arranged on a second carrier (200) and (c) the two carriers are connected to one another, wherein the sequence of steps (a) to (c) is arbitrary. According to the invention, the two carriers are adhesively bonded to one another with an adhesive (310) containing electrically conductive particles (300) so as to form an anisotropically conductive adhesive layer (320), wherein the adhesive layer is used to produce an electrical connection between at least one electrical contact surface (80) on the first carrier and at least one electrical contact surface (240) on the second carrier.
Abstract:
The present invention provides a microelectronic element (1) and method of manufacturing the same. The microelectronic element (1) comprises a semiconductor chip (2) and a bump (4) located on the pad (3) of the semiconductor chip (2). The bump (4) includes a conductive layer (5) and an elastic conductor layer (6). The conductive layer (5) is connected with the pad (3) of the semiconductor chip (2) and the elastic conductor layer (6) is fixed on the conductive layer (5) by inter-metallic connection. The elastic conductor layer (6) consists of conductive particles (7). The present invention also provides a package structure and a LCD device (15) including the microelectronic element (1). There is no need for anisotropic conductive film in method of manufacturing the microelectronic element (1).
Abstract:
Embodiments of the present invention include a conductive particle that includes a conductive nickel/gold (Ni/Au) complex metal layer having a phosphorous content of less than about 1.5 weight percent formed on the surface of a polymer resin particle. Methods of forming the same are also included. A conductive particle with a Ni/Au complex metal layer having less than about 1.5 weight percent of phosphorous may have relatively high conductivity while providing relatively good adhesion of the Ni/Au metal layer to the polymer resin particle. Further embodiments of the present invention provide an anisotropic adhesive composition comprising a conductive particle according to an embodiment of the invention.