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    • 11. 发明申请
    • WIRING PROTECTION ELEMENT FOR LASER DELETED TUNGSTEN FUSE
    • 用于激光去除的TUNGSTEN保险丝的接线保护元件
    • US20050077593A1
    • 2005-04-14
    • US10605617
    • 2003-10-14
    • William MotsiffChristopher Muzzy
    • William MotsiffChristopher Muzzy
    • H01L23/525H01L27/10
    • H01L23/5258H01L2924/0002H01L2924/00
    • A structure and associated method for protecting an electrical structure during a fuse link deletion by focused radiation. The structure comprises a fuse element, a protection plate, a first dielectric layer, and a second dielectric layer. The structure is formed within a semiconductor device. The protection plate is formed within the first dielectric layer using a damascene process. The second dielectric layer is formed over the protection plate and the first dielectric layer. The fuse element is formed over the second dielectric layer. The fuse element is adapted to be cut with a laser beam. The dielectric constant of the second dielectric layer is greater than the dielectric constant of the first dielectric layer. The protection plate is adapted to shield the first dielectric layer from energy from the laser beam.
    • 一种用于通过聚焦辐射在熔断体缺失期间保护电气结构的结构和相关方法。 该结构包括熔丝元件,保护板,第一电介质层和第二电介质层。 该结构形成在半导体器件内。 使用镶嵌工艺在第一介电层内形成保护板。 第二电介质层形成在保护板和第一介电层上。 熔丝元件形成在第二介电层上。 熔丝元件适于用激光束切割。 第二电介质层的介电常数大于第一介电层的介电常数。 保护板适于屏蔽来自激光束的能量的第一介电层。