Tokyo Ohka Kogyo Co., Ltd.

Takaaki Hirai

Atsushi Murota

Toshiro Morita

Katsuya Tanitsu

Motoki Takahashi

Takashi Kamizono

Syunji Nakazato

Yoshiaki Katayose

A diffusion agent composition used in forming an impurity diffusion agent layer on a semiconductor substrate, and containing an impurity diffusion component, a silicon compound, and a solvent containing a solvent having a boiling point of 100&#xb0; C. or less, a solvent having a boiling point of 120-180&#xb0; C., and a solvent having a boiling point of 300&#xb0; C.

Diffusion agent composition, method of forming impurity diffusion layer, and solar cell

A diffusion agent composition including an impurity-diffusing component (A); a binder resin (B) that thermally decomposes and disappears below a temperature at which the impurity-diffusing component (A) begins to thermally diffuse; SiOfine particles (C); and an organic solvent (D) that contains an organic solvent (D1) having a boiling point of at least 100&#xb0; C.

An embodiment of the present invention relates to a diffusing agent composition used in printing an impurity-diffusing component onto a semiconductor substrate, wherein the diffusing agent composition contains: a hydrolysis product of alkoxysilane (A); a component (B) containing at least one selected from the group consisting of a hydrolysis product of alkoxy titanium, a hydrolysis product of alkoxy zirconium, titania fine particle, and zirconia fine particle; an impurity-diffusing component (C); and an organic solvent (D).

Diffusing agent composition, method of forming impurity diffusion layer, and solar battery

A mask material composition that is used for diffusion barrier of an impurity diffusing component into a semiconductor substrate includes a siloxane resin (A1) containing a constituent unit represented by the following formula (a1): wherein Ris a single bond or C-Calkylene group; and Ris a C-Caryl group.

Mask material composition, method of forming impurity diffusion layer, and solar battery

A composition for forming an adhesive layer which results in strong adhesion force between a substrate and a photosensitive resin layer, and which does not cause transfer of the constituting components to the substrate, a relief printing plate using the same, and a method for manufacturing a relief printing plate are provided. The composition of the present invention comprises (a) a carboxyl group-containing polymer, and (b) an oxazoline group-containing polymer. Adhesive layerformed using the composition of the present invention can be preferably used as an adhesive layer that adheres between substrateand photosensitive resin layerin a relief printing plate.

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Kawasaki, Japan

Takaaki Hirai