| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a method of manufacturing a quantitatively cut chip being excellent in quality, cost, precision and productivity and available in application for e.g. electronic devices and a method of manufacturing a metal sphere using the chip. <P>SOLUTION: The chip-manufacturing method comprises cutting a wire strand composed of two or more twisted metal fine wires of a diameter of ≤200 μm with predetermined intervals three times or fewer the diameter of the strand. Preferably, the maximum tensile load of the strand is ≥0.2 kgf, and the metal wires are made of Cu. The sphere-manufacturing method comprises heating the chips obtained by the chip-manufacturing method in a fluid, preferably a gas, with plasma as a heat source to spheroidize. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
