首页> 外文会议>Symposium on CMOS Front - End Materials and Process Technology; 20030422-20030424; San Francisco,CA; US >B Diffusion in Low Energy B/BF2 Implants with Pre-Amorphization of Different Species
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B Diffusion in Low Energy B/BF2 Implants with Pre-Amorphization of Different Species

机译:低能B / BF2植入物中B的扩散与不同物种的预非晶化

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The formation of an amorphous layer is needed to prevent channeling effect of B in the subsequent implant and hence, shallower as-implanted and annealed profiles could be expected. B diffusion in the pre-amorphization (PAI) Si has been studied extensively by many research groups and the diffusion has been explained by the interaction of B and defects generated by the PAI and B implant processes. In our previous study, we found that B diffusion can also be affected by the immobile B clustering caused by the incorporated species and therefore, B diffusion in the PAI Si should be expected to be different with different PAI species due to their different effect on the B clustering. In this paper, we reported different B diffusion behavior in bulk Si with respective to different PAI species. The species include GeF_2, Ge, F, BF_2, and In and the immobile B clustering plays an important role in the B diffusion reduction.
机译:需要形成非晶层以防止B在随后的注入中的沟道效应,因此,可以预期较浅的注入和退火轮廓。许多研究小组已广泛研究了预非晶化(PAI)Si中的B扩散,并通过B与PAI和B注入工艺产生的缺陷之间的相互作用来解释扩散。在我们以前的研究中,我们发现掺入物种引起的固定B团簇也可能影响B的扩散,因此,由于不同的PAI物种对BAI Si的影响不同,因此应该预期PAI Si中的B扩散会有所不同。 B聚类。在本文中,我们报道了体硅中不同的B扩散行为,分别对应于不同的PAI物种。物种包括GeF_2,Ge,F,BF_2和In,固定的B团簇在B扩散减少中起重要作用。

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