The present invention provides a thick-film paste for printing the front side of a solar cell device having one or more insulating layers. The thick-film paste comprises an electrically conductive metal, and a lead-tellurium-lithium-oxide dispersed in an organic medium.

An objective of the present invention is to provide a sinterable bonding material capable of providing a bonded article having a long-term reliability. The present invention relates to a sinterable bonding material comprising a silver filler and resin particles, wherein the silver filler comprises a flake-shaped filler having an arithmetic average roughness (Ra) of 10 nm or less; and the resin particles have an elastic modulus (E) of 10 GPa or less, and a heat decomposition temperature of 200 C. or more. The sintered product of the sinterable bonding material of the present invention is excellent in bonding strength and heat-release characteristics, and has an improved stress relaxation ability.

The magnetic tape includes a magnetic layer having ferromagnetic powder and a binder on a non-magnetic support, in which the magnetic layer includes a timing-based servo pattern, the ferromagnetic powder is ferromagnetic hexagonal ferrite powder having an activation volume equal to or smaller than 1,600 nm.sup.3, and an edge shape of the timing-based servo pattern specified by a magnetic force microscope observation is a shape in which a difference (l.sub.99.9l.sub.0.1) between a value l.sub.99.9 of a cumulative frequency function of 99.9% of a position deviation width from an ideal shape in a longitudinal direction of the magnetic tape and a value l.sub.0.1 of the cumulative frequency function of 0.1% thereof is equal to or smaller than 180 nm.

The magnetic tape includes a magnetic layer having ferromagnetic powder and a binder on a non-magnetic support, in which the magnetic layer includes a timing-based servo pattern, the ferromagnetic powder is ferromagnetic hexagonal ferrite powder having an activation volume equal to or smaller than 1,600 nm.sup.3, and an edge shape of the timing-based servo pattern specified by a magnetic force microscope observation is a shape in which a difference (l.sub.99.9l.sub.0.1) between a value l.sub.99.9 of a cumulative frequency function of 99.9% of a position deviation width from an ideal shape in a longitudinal direction of the magnetic tape and a value l.sub.0.1 of the cumulative frequency function of 0.1% thereof is equal to or smaller than 180 nm.

A method for manufacturing a conductive film, the method comprising the steps of: preparing a mixture liquid in which a catalytic metal is dispersed in a precursor or a precursor compound of a two-dimensional nanomaterial; and forming a catalytic metal/two-dimensional nanomaterial by irradiating the mixture liquid with ultrasonic waves to generate microbubbles, degrading the precursor compound using energy, which is generated when the microbubbles burst, to synthesize the two-dimensional nanomaterial on an outer wall of the catalytic metal, wherein the method further comprises: dispersing the catalytic metal/two-dimensional nanomaterial in a dispersion to prepare ink; and applying the ink on a substrate and performing rapid air-sintering. Thus, the two-dimensional nanomaterial is synthesized on an outer wall of a non-noble metal having high oxidative characteristics, thereby preventing oxidation of the metal from air and increasing thermal conductivity and electrical conductivity.

A method for manufacturing a conductive film, the method comprising the steps of: preparing a mixture liquid in which a catalytic metal is dispersed in a precursor or a precursor compound of a two-dimensional nanomaterial; and forming a catalytic metal/two-dimensional nanomaterial by irradiating the mixture liquid with ultrasonic waves to generate microbubbles, degrading the precursor compound using energy, which is generated when the microbubbles burst, to synthesize the two-dimensional nanomaterial on an outer wall of the catalytic metal, wherein the method further comprises: dispersing the catalytic metal/two-dimensional nanomaterial in a dispersion to prepare ink; and applying the ink on a substrate and performing rapid air-sintering. Thus, the two-dimensional nanomaterial is synthesized on an outer wall of a non-noble metal having high oxidative characteristics, thereby preventing oxidation of the metal from air and increasing thermal conductivity and electrical conductivity.

Process for producing a layer structure, which comprises the steps: E1. provision of a composition comprising i. gold (Au) particles in an amount in the range from 0.1 to 50% by weight; ii. a balance to 100% by weight of a polar, protic organic solvent; iii. less than 5% by weight of water, where the % by weight, in each case based on the total mass of the composition, add up to 100% by weight; E2. application of the composition to a substrate to give a precursor; E3. heating of the precursor to a temperature in the range from 25 to 200 C. to give the layer structure.

The present invention provides a paste composition that is capable of forming a germanium compound layer on a germanium substrate safely and easily, and that is capable of forming a uniform germanium compound layer. The paste composition for forming a germanium compound layer contains (A) tin and (B) at least one metal selected from the group consisting of silicon and aluminum, wherein the content of the at least one metal selected from the group consisting of silicon and aluminum (B) is 1 part by mass or more and 15000 parts by mass or less, per 100 parts by mass of the tin (A).

Provided is an electronic device including: an electronic component; and an electromagnetic interference shielding layer formed on at least a portion of the electronic component. The electromagnetic interference shielding layer includes: magnetic particles for electromagnetic wave absorption, each of the magnetic particles having a conductive film on a surface of the magnetic particle; and a conductive portion where conductive metal particles for electromagnetic shielding are sintered and formed on the conductive film of the magnetic particles.

A silver sintering preparation in the form of a silver sintering paste comprising 70 to 95 wt.-% of coated silver particles (A) and 5 to 30 wt.-% of organic solvent (B) or in the form of a silver sintering preform comprising 74.5 to 100 wt.-% of coated silver particles (A) and 0 to 0.5 wt.-% of organic solvent (B), wherein the coating of the coated silver particles (A) comprises at least one silver salt of the formula C.sub.nH.sub.2n+1COOAg with n being an integer in the range of 7 to 10, and wherein the at least one silver salt is thermally decomposable at >160? C.