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    • 3. 发明公开
    • LASER PROCESSING METHOD
    • LASERVERARBEITUNGSVERFAHREN
    • EP2599578A4
    • 2016-12-14
    • EP11812304
    • 2011-07-19
    • HAMAMATSU PHOTONICS KK
    • SHIMOI HIDEKIARAKI KEISUKE
    • H01L21/306B23K26/00B23K26/38H01L21/48H05K3/00
    • H05K3/002B23K26/006B23K26/382B23K26/384B23K26/40B23K2201/35B23K2203/50H01L21/30604H01L21/30625H01L21/486H05K2203/107
    • A laser processing method of converging laser light into an object to be processed made of silicon so as to form a modified region and etching the object along the modified region so as to form the object with a through hole comprises an etch resist film producing step of producing an etch resist film resistant to etching on an outer surface of the object; a laser light converging step of converging the laser light at the object after the etch resist film producing step so as to form the modified region along a part corresponding to the through hole in the object and converging the laser light at the etch resist film so as to form a defect region along a part corresponding to the through hole in the etch resist film; and an etching step of etching the object after the laser light converging step so as to advance the etching selectively along the modified region and form the through hole.
    • 一种激光加工方法,其将激光会聚到由硅制成的待加工物体中以形成改质区域并沿着改质区域蚀刻物体以形成具有通孔的物体,其包括:抗蚀剂膜制造步骤 产生耐蚀刻物体的外表面上的蚀刻抗蚀剂膜; 激光聚光步骤,在激光刻蚀步骤之后将激光会聚在物体上,以沿与物体中的通孔对应的部分形成改质区域,并将激光会聚在抗蚀剂膜上,以便 沿着与蚀刻抗蚀剂膜中的通孔对应的部分形成缺陷区域; 以及蚀刻步骤,在激光聚光步骤之后蚀刻所述物体,以便沿着所述改质区域选择性地进行蚀刻并形成所述通孔。