Abstract: A metal wire includes tungsten or a tungsten alloy. The metal wire has a diameter of at most 13 ?m, a tensile strength of at least 4.8 GPa, and a natural hanging length per 1000 mm of at least 800 mm.

Abstract: An improved methane oxidation catalyst including tin oxide-supported platinum exerts superior methane oxidation activity at lower temperatures. The methane oxidation catalyst for oxidizing methane in exhaust gas includes platinum supported on tin oxide, and satisfies formula (1): y?0.27 x, where x is a platinum content (wt %) relative to tin oxide, and y is a ratio of a peak intensity of (111)-faceted platinum relative to a peak intensity of (111)-faceted tin oxide (Pt(111)/SnO2(111)), in a diffraction pattern (2?=37 to 41°) obtained by measurement with an X-ray diffractometer (XRD).

Abstract: A ROM bit map file indicating placement areas of transistors of a mask ROM is prepared from a layout condition of the transistors in the mask ROM and physical positions of the transistors described in a layout pattern file, a logic simulation is performed by using the ROM bit map file and connection information of the transistors, and the physical positions of the transistors are verified according to a simulation result. Therefore, even though there are a large number of transistors in the mask ROM, the physical positions of the transistors can be reliably verified.