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    • 5. 发明申请
    • Method for improved process latitude by elongated via integration
    • 通过扩展通过集成改进工艺纬度的方法
    • US20060244146A1
    • 2006-11-02
    • US11474420
    • 2006-06-26
    • Matthew Colburn
    • Matthew Colburn
    • H01L23/52
    • H01L21/76835H01L21/76807H01L21/7681H01L21/76829
    • Interconnect dual damascene structure are fabricated by depositing on a layer of at least one dielectric, a mask forming layer for providing the via-level mask layer of the dual damascene structures; creating an elongated via pattern in the via-level mask layer; depositing a layer of line-level dielectric and creating a line pattern through the layer of line-level dielectric, and transferring the line pattern through the projected intersection of the elongated via-level pattern and of the line-level pattern thereby generating an aligned dual damascene structure. A conductive liner layer is deposited in the dual damascene structure followed by filling the dual damascene structure with a conductive fill metal to form a set of metal lines. The metal and liner layers are planarized.
    • 互连双镶嵌结构通过沉积在至少一个介电层的层上制造,掩模形成层用于提供双镶嵌结构的通孔级掩模层; 在通孔级掩模层中形成细长的通孔图案; 沉积一层线路电介质并通过线路级电介质层产生线路图案,并且通过细长通孔电平图案和线路电平图案的投影交点传送线路图案,从而产生对准的双 大马士革结构。 导电衬里层沉积在双镶嵌结构中,然后用导电填充金属填充双镶嵌结构以形成一组金属线。 金属和衬里层被平坦化。