ON-CHIP THROUGH-BODY-VIA CAPACITORS AND TECHNIQUES FOR FORMING SAME
    3.
    发明公开
    ON-CHIP THROUGH-BODY-VIA CAPACITORS AND TECHNIQUES FOR FORMING SAME 审中-公开
    芯片上通过身体威盛电容器和形成相同的技术

    公开(公告)号:EP3311401A1

    公开(公告)日:2018-04-25

    申请号:EP15896494.0

    申请日:2015-06-22

    申请人: Intel Corporation

    IPC分类号: H01L21/60

    摘要: Techniques are disclosed for providing on-chip capacitance using through-body-vias (TBVs). In accordance with some embodiments, a TBV may be formed within a semiconductor layer, and a dielectric layer may be formed between the TBV and the surrounding semiconductor layer. The TBV may serve as one electrode (e.g., anode) of a TBV capacitor, and the dielectric layer may serve as the dielectric body of that TBV capacitor. In some embodiments, the semiconductor layer serves as the other electrode (e.g., cathode) of the TBV capacitor. To that end, in some embodiments, the entire semiconductor layer may comprise a low-resistivity material, whereas in some other embodiments, low-resistivity region(s) may be provided just along the sidewalls local to the TBV, for example, by selective doping in those location(s). In other embodiments, a conductive layer formed between the dielectric layer and the semiconductor layer serves as the other electrode (e.g., cathode) of the TBV capacitor.