| 摘要 |
PROBLEM TO BE SOLVED: To provide a means capable of easily producing a spherical body such as a solder ball with reduced stages at a low cost. SOLUTION: The raw material of a spherical body is discharged from a discharge port in the state of a melt, at the point of the time in which the discharge amount reaches the desired one, the melt is separated at the discharge port by the flow of a fluid, and the separated raw material of a spherical body is made sphere by surface tension in the state of the melt and is thereafter solidified. Since the raw material of the spherical body discharged from the discharge port can be easily separated in the state of the melt by the flow of the fluid and can be separated into a desired amount in the state of the melt, a stage of working the raw material such as solder into a sheet material or a wire rod performed in the conventional method is made needless, thus the reduction of the production process can be attained. COPYRIGHT: (C)2009,JPO&INPIT
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