| 摘要 |
PROBLEM TO BE SOLVED: To provide a die width detection apparatus that can detect the width of a die mounted on a die mounting part.SOLUTION: A die mounting part has a feeding electrode 31 and a plurality of detection electrodes 32. When mounting a die having a power receiving electrode and a displacement electrode to the die mounting part, the feeding electrode 31 faces the power receiving electrode and the detection electrode 32 faces the displacement electrode to thereby form a capacitor circuit. A die position/width detection unit 11 supplies an AC feeding signal to the feeding electrode 31. A voltage information extraction part 330 extracts three voltage information from the detection electrodes 32, the information that is first voltage information having a level exceeding a threshold level, second voltage information having a leakage signal level smaller than the threshold level, and third voltage information having a level smaller than the leakage signal level. A position/width detection calculation part 111 detects the width of the die, based on the first and third voltage information. |
