Abstract:
In a construction for electrically connecting electrical unit with joint surfaces thereof opposed to each other, wiring patterns electrically connected with distortion gauges are formed on function-element forming surfaces of each electrical three-dimensional unit and are extended to edge portions formed between the function-element forming surfaces and adjacent wiring surfaces as the joint surfaces to form first lands; second lands extending from the edge portions by a specified distance are formed at positions of the wiring surfaces corresponding to the first lands; and electrical connectors displaying a joining performance upon being pressed together are formed to bridge the first and second lands while being held in close contact with the first and second lands. A plurality of three-dimensional electrical unit can be securely and easily electrically connected with each other with high precision.
Abstract:
Microscopic particle decentralized solution having microscopic particles with different diameters are decentralized, wherein: the microscopic particle decentralized solution has two peaks in a granularity distribution, at a large diameter and a small diameter; and microscopic particle mixtures satisfying the following relationships are decentralized in the solution; R>r and n>3.84×(R/r)3×N, where R is a large particle diameter, r is a small particle diameter, N is the number of large particles, and n is the number of small particle.
Abstract:
Method and apparatus for low temperature sintering of sintering of printable conductive inks, preferably using a plasma. The inks can be deposited on a substrate using any number of deposition techniques, and can be applied to processing on materials including, but not limited to, electronic, biologic, and low-temperature substrates. The inks preferably comprise metallic nanoparticles coated with an organic non-conductive material. The plasma removes the organic material and facilitates the sintering of the metallic particles into a continuous deposit, without exposing the substrate to high temperatures.
Abstract:
There is disclosed is a method comprising surface-processing a Sn based, Sn alloy based or Sn—Zn alloy based solder particle (1), applied as a coating, such as by electrical plating or melt plating, to the surface of a metal material, such as iron, a steel plate or copper, with a phosphate and a silicium containing compound, to form a protective film (2). There are also disclosed a solder material (6) in which a protective film (2) formed of a phosphate and a silicium containing compound is formed on the surface of the Sn—Zn based solder particle (1), and a solder paste formed of this solder material (6) and the flux.
Abstract:
A circuit board structure and a dielectric layer structure thereof are proposed. The dielectric layer structure has a dielectric layer and a plurality of bonding particles dispersed in the dielectric layer. The bonding particle is a metal powder particle coated with an insulating film. There is an additional circuit structure formed on the dielectric layer. The dielectric layer structure can be applied to any circuit board, such that the circuit board can be formed with a dielectric layer having bonding particles. The circuit board may form a circuit structure on the dielectric layer, so that the connection between the circuit structure and the dielectric layer can be reinforced by the bonding particles. Therefore, the structures of the present invention can ease the fabrication of forming fine pitch wiring in the circuit board structure, so as to form a circuit structure with finer pitch.
Abstract:
A metal particle dispersion liquid compries: a compound including a sulfur atom; metal particles whose diameter ranges from 1 to 100 nm and made of a material including a precious metal material; and a dispersion medium. The metal particles is covered by the compound.
Abstract:
Disclosed is an anisotropic-electroconductive adhesive, which includes an insulating adhesive component containing a radical polymerizable compound and a polymerization initiator; and a plurality of insulating coated electroconductive particles dispersed in the insulating adhesive component, the insulating coated electroconductive particle having a coating layer made of insulating thermoplastic resin on a surface of an electroconductive particle, wherein a softening point of the insulating thermoplastic resin is lower than an exothermic peak temperature of the insulating adhesive component. The anisotropic-electroconductive adhesive enables rapid curing of the insulating adhesive component at a low temperature and is very useful for making a circuit connection structure since it may prevent a short of circuit without connection failure even when the electroconductive particles are condensed.
Abstract:
A plasma display device may include a plasma display panel, a driving circuit portion for driving the plasma display panel, a connecter for electrically connecting electrodes of the plasma display panel with the driving circuit portion, and an interconnecter for electrically connecting the connecter with the plasma display panel. The interconnecter may include an adhesive layer, a plurality of conductive pellets, and a plurality of non-conductive pellets dispersed in the adhesive layer. The conductive pellets may be positioned substantially within a first region where the wiring of the connecter overlaps the electrodes of the plasma display panel. The non-conductive pellets may be positioned substantially at least at a second region other than the first region in the adhesive layer.
Abstract:
There are disclosed insulated ultrafine powder comprising electroconductive ultrafine powder which is in the form of sphere, spheroid or acicular each having a minor axis in the range of 1 to 100 nm and an insulating film applied thereto; a process for producing the same which is capable of covering the surfaces of the insulated ultrafine powder with the insulating film having a thickness in the range of 0.3 to 100 nm without causing any clearance or vacancy; and a resin composite material which uses the same. A high dielectric constant of the material is assured by adding a small amount of insulated ultrafine powder wherein an insulating film is applied to the electroconductive ultrafine powder, while maintaining the processability and moldability that are the characteristics inherent in a resin material.
Abstract:
An anisotropic electrically conducting interconnect is disclosed in which an adhesive comprising particles having a breakable coating of at least one electrically nonconductive material is compressed between a first contact and a second contact. Compression to two contacts breaks the breakable coating exposing an electrically conducting material which makes contact with the first and second contacts. The electrically conducting material may be a metal conductor or a two-part reactive conductive resin/catalyst system. Also disclosed are processes for making such electrical interconnects and adhesives for use in making electrical interconnect.