A self-aware composite mechanical metamaterial, comprising first and second electrically conductive components disposed relative to each other to act as opposite electrodes to induce contact electrification; wherein the first and second electrically conductive components, along with a dielectric component serving as a skeleton of the self-aware composite mechanical metamaterial, form a lattice of snapping curved semicircular-shaped segments, wherein each of the snapping curved semicircular-shaped segments has an elastic snap-through instability mechanism; and wherein the lattice comprises periodic repeatable parallel rows of the snapping curved semicircular-shaped segments.

Proposed is a conductive particle used for a testing socket electrically connecting a lead of a device to be tested and a pad of a test board by being arranged between the device to be tested and the test board, wherein the conductive particle has a predetermined depth d and has a length l that is greater than a width w, the conductive particle having a body part in a pillar shape, a first convex part having an upper surface, formed in a top of the body part, and a second convex part having a lower surface, formed in a bottom of the body part.

Proposed is a conductive particle used for a testing socket electrically connecting a lead of a device to be tested and a pad of a test board by being arranged between the device to be tested and the test board, wherein the conductive particle has a predetermined depth d and has a length l that is greater than a width w, the conductive particle having a body part in a pillar shape, a first convex part having an upper surface, formed in a top of the body part, and a second convex part having a lower surface, formed in a bottom of the body part.

A production method for silver fine particles retain capabilities such as conductivity and make it possible to form wiring at even lower temperatures; and silver fine particles. A silver fine particle production method in which silver powder is used to produce silver fine particles by means of a gas phase method. The silver fine particle production method has a step for supplying an organic acid to the silver fine particles. The gas phase method is, for example, a plasma method or a flame method. The silver fine particles have a surface coating that includes at least a carboxyl group.

Articles and methods regarding composite conductor materials comprising a first conductive material layer and a first carbonaceous material layer. In certain embodiments, the first carbonaceous material layer comprises an sp2 hybridized carbon compound. In certain embodiments, the electrical conductivity of the composite conductive material can be controlled and exhibits a conductivity at least 1.5% greater than the conductivity of the first conductive material layer alone.

The present invention provides covered particles wherein insulating layers cover the surfaces of electroconductive particles, and the covered particles are excellent in the adhesion between the surfaces of the electroconductive particles and the insulating layers. The covered particles includes: electroconductive particles in which metal films are formed on the surfaces of core materials, and a triazole-based compound is disposed on the outer surfaces on the sides opposite to the core materials in the metal films; and insulating layers covering the electroconductive particles, and the insulating layers comprise a compound having phosphonium groups.

The present invention provides covered particles wherein insulating layers cover the surfaces of electroconductive particles, and the covered particles are excellent in the adhesion between the surfaces of the electroconductive particles and the insulating layers. The covered particles includes: electroconductive particles in which metal films are formed on the surfaces of core materials, and a triazole-based compound is disposed on the outer surfaces on the sides opposite to the core materials in the metal films; and insulating layers covering the electroconductive particles, and the insulating layers comprise a compound having phosphonium groups.

A double-sided pressure-sensitive adhesive strip is provided that includes a pressure-sensitive adhesive strip comprising two opposing strip surfaces configured for bonding. At least one conductive component connects the two opposing strip surfaces configured for bonding in the z-direction. Also provided is a component and/or a composite, which is bonded with the conductive pressure-sensitive adhesive strip. Further, uses are provided of the conductive pressure-sensitive adhesive strip.

A double-sided pressure-sensitive adhesive strip is provided that includes a pressure-sensitive adhesive strip comprising two opposing strip surfaces configured for bonding. At least one conductive component connects the two opposing strip surfaces configured for bonding in the z-direction. Also provided is a component and/or a composite, which is bonded with the conductive pressure-sensitive adhesive strip. Further, uses are provided of the conductive pressure-sensitive adhesive strip.

Electroconductive two-dimensional particles composed of a layered material having one or more layers, wherein each of the one or more layers is a layer body represented by M.sub.mX.sub.n (M represents at least one group 3, 4, 5, 6 or 7 metal; X represents a carbon atom, a nitrogen atom, or a combination thereof; n represents a number from 1 to 4; m represents a number that is larger than n but not larger than 5), and a modification or terminal T (T represents at least one atom or group selected from a hydroxyl group, a fluorine atom, a chlorine atom, an oxygen atom and a hydrogen atom) is present on the surface of the layer body; the Li content is from 0.0001% by mass to 0.0020% by mass; and the average value of the lengths of two-dimensional surfaces of the electroconductive two-dimensional particles is from 1.0 μm to 20 μm.