| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve such problems that a general pulse waveform rises sharply from the start point of oscillation and falls gently after peak, surface of an annealed object is heated rapidly at a moment in time of peak power, and since the power shows a peak only momentarily, it is difficult to heat the deep region of the annealed object sufficiently. <P>SOLUTION: When a pulse current is input, a laser pulse is emitted from a laser diode. An optical system guides the laser pulse emitted from the laser diode to an annealed object. A driver supplies a pulse current having a top flat time waveform and a pulse width of 1-100 μs to the laser diode. <P>COPYRIGHT: (C)2013,JPO&INPIT |
