作者: Kazutaka Yanagita , Kiyofumi Sakaguchi , Takao Yonehara , Kazuaki Omi
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摘要: This invention prevents defects generated when a bonded substrate stack having separation layer is separated. A ( 101 ) porous b separated in two steps of the first and second processes. In process, jet ejected to while rotating partially separate leaving central portion as an unseparated region. rotation stopped. force applied region from predetermined direction completely ). Also, (peripheral portion) (central are using ultrasonic wave, respectively. More specifically, by nozzle 102 On other hand, wave vibrator 1203