Senju Metal Industry Co., Ltd.

Other

Bruker Axs Gmbh

Panalytical B.v.

Shinko Seiki Company, Limited

Keisuke Saito

Rikiya Kato

Sakie Yamagata

Tadatomo Suga

Tatsuya Takeuchi

Carsten Michaelsen

Lutz Bruegemann

Yoshikazu Matsuura

Johji Kagami

An X-ray optical configuration for irradiation of a sample () with an X-ray beam having a line-shaped cross-section, wherein the configuration contains an X-ray source () and a beam-conditioning X-ray optics, is characterized in that the X-ray source () comprises a brilliant point source () and the X-ray optics comprises an X-ray optical element () which conditions X-ray light emitted by the point source in such a fashion that the X-ray beam is rendered parallel in one direction perpendicular to the beam propagation direction and remains divergent in a direction which is perpendicular thereto and also to the beam propagation direction. An X-ray optical element of this type enables use of both point-shaped and line-shaped beam geometries without complicated and time-consuming conversion work.

Point-line converter

A soldering method includes exposing a solder paste including a solder powder and a flux on a member to a free radical gas and heating the solder paste to reflow the solder paste and vaporize any active components in the solder paste. Any flux residue is free of active components, so it is not necessary to perform cleaning after soldering to remove flux residue.

Reflow soldering method

A residue-free solder paste which leaves little or no flux residue after reflow soldering and which have good printability, storage stability, retainability of parts, and wettability, comprises a solder powder mixed with a rosin-free pasty flux. The flux comprises at least one solid solvent and at least one highly viscous solvent in a total amount of 30-90 mass %, in addition to at least one liquid solvent, all the solvents vaporizing at a reflow soldering temperature. The flux may further contain 0.5-12% of a thixotropic agent such as a fatty acid amide and 1-15% of an activator selected from organic acids and their amine salts, the thixotropic agent and activator vaporizing in the presence of the solvents while the solvents are vaporizing.

Residue-free solder paste

Crystal structure analysis method

Growing community of inventors

Yokohama, Japan

Keisuke Saito