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首页> 外文期刊>Applied Physics Letters >Molecular-nanolayer-induced suppression of in-plane Cu transport at Cu-silica interfaces
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Molecular-nanolayer-induced suppression of in-plane Cu transport at Cu-silica interfaces

机译:分子纳米层诱导的铜-硅界面平面内铜传输的抑制

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Recent reports have shown that molecular nanolayers (MNLs) can be used to inhibit Cu diffusion across Cu-dielectric interfaces in nanodevice wiring. Here, we demonstrate that MNLs can curtail in-plane interfacial Cu transport. Cu lines embedded in SiO_2 in interdigitated comb configurations were passivated by organosilane MNLs with thiol, amino-phenyl, and amino-propyl termini. Leakage current and breakdown voltage measurements at 0-1.4 MV/cm electric fields reveal that amino-phenyl-terminated MNLs are the most effective in inhibiting in-plane leakage, likely due to Cu-N complex formation. Our results suggest that MNLs with appropriate termini could be used to tailor the stability and reliability of device wiring structures.
机译:最近的报告表明,分子纳米层(MNL)可用于抑制Cu扩散穿过纳米器件布线中的Cu介电界面。在这里,我们证明了MNL可以减少平面内界面Cu的运输。以叉状梳状嵌入SiO_2的Cu线被具有硫醇,氨基-苯基和氨基-丙基末端的有机硅烷MNL钝化。在0-1.4 MV / cm电场下的泄漏电流和击穿电压测量结果表明,可能由于Cu-N络合物的形成,氨基苯基末端的MNL最有效地抑制了面内泄漏。我们的结果表明,带有适当末端的MNL可用于定制设备布线结构的稳定性和可靠性。

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