METHOD AND APPARATUS FOR IMPROVED WAFER SINGULATION
    1.
    发明申请
    METHOD AND APPARATUS FOR IMPROVED WAFER SINGULATION 审中-公开
    改进方法和装置调整方法

    公开(公告)号:US20110287607A1

    公开(公告)日:2011-11-24

    申请号:US13076238

    申请日:2011-03-30

    IPC分类号: H01L21/78 B23K26/00

    摘要: Laser singulation of electronic devices from semiconductor substrates including wafers is performed using up to 3 lasers from 2 wavelength ranges. Using up to 3 lasers from 2 wavelength ranges permits laser singulation of wafers held by die attach film while avoiding problems caused by single-wavelength dicing. In particular, using up to 3 lasers from 2 wavelength ranges permits efficient dicing of semiconductor wafers while avoiding debris and thermal problems associated with laser processing die attach tape.

    摘要翻译: 使用来自2个波长范围的3个激光器来执行包括晶片的半导体基板的电子器件的激光切割。 使用2个波长范围的多达3个激光器可以激光切割由芯片附着膜保持的晶片,同时避免单波长切割引起的问题。 特别地,使用2个波长范围的多达3个激光器可以有效切割半导体晶片,同时避免与激光加工芯片附着带相关的碎片和热问题。

    METHOD AND APPARATUS FOR LASER SINGULATION OF BRITTLE MATERIALS
    2.
    发明申请
    METHOD AND APPARATUS FOR LASER SINGULATION OF BRITTLE MATERIALS 有权
    用于激光激光材料的方法和装置

    公开(公告)号:US20110240616A1

    公开(公告)日:2011-10-06

    申请号:US12753367

    申请日:2010-04-02

    IPC分类号: B23K26/00

    摘要: An improved method for singulation of electronic substrates into dice uses a laser to first form cuts in the substrate and then chamfers the edges of the cuts by altering the laser parameters. The chamfers increase die break strength by reducing the residual damage and removes debris caused by the initial laser cut without requiring additional process steps, additional equipment or consumable supplies.

    摘要翻译: 用于将电子衬底分离成骰子的改进方法使用激光器首先在衬底中形成切口,然后通过改变激光器参数来倒角切口的边缘。 倒角通过减少残余损伤并消除由初始激光切割引起的碎片而增加冲模强度,而不需要额外的工艺步骤,附加设备或消耗品。

    Method and apparatus for laser singulation of brittle materials
    3.
    发明授权
    Method and apparatus for laser singulation of brittle materials 有权
    用于激光切割脆性材料的方法和装置

    公开(公告)号:US08383984B2

    公开(公告)日:2013-02-26

    申请号:US12753367

    申请日:2010-04-02

    IPC分类号: B23K26/00

    摘要: An improved method for singulation of electronic substrates into dice uses a laser to first form cuts in the substrate and then chamfers the edges of the cuts by altering the laser parameters. The chamfers increase die break strength by reducing the residual damage and removes debris caused by the initial laser cut without requiring additional process steps, additional equipment or consumable supplies.

    摘要翻译: 用于将电子衬底分离成骰子的改进方法使用激光器首先在衬底中形成切口,然后通过改变激光器参数来倒角切口的边缘。 倒角通过减少残余损伤并消除由初始激光切割引起的碎片而增加冲模强度,而不需要额外的工艺步骤,附加设备或消耗品。