Silicon wafer and process for the heat treatment of a silicon wafer
    5.
    发明授权
    Silicon wafer and process for the heat treatment of a silicon wafer 有权
    硅晶片和用于硅晶片热处理的工艺

    公开(公告)号:US07828893B2

    公开(公告)日:2010-11-09

    申请号:US11386855

    申请日:2006-03-22

    IPC分类号: C30B15/10

    摘要: A silicon wafer having no epitaxially deposited layer or layer produced by joining to the silicon wafer, with a nitrogen concentration of 1·1013-8·1014 atoms/cm3, an oxygen concentration of 5.2·1017-7.5·1017 atoms/cm3, a central thickness BMD density of 3·108-2·1010 cm−3, a cumulative length of linear slippages ≦3 cm and a cumulative area of areal slippage regions ≦7 cm2, the front surface having 0.13 μm LSE in the DNN channel, a layer at least 5 μm thick, in which ≦1·104 COPs/cm3 with a size of ≧0.09 μm occur, and a BMD-free layer ≧5 μm thick. Such wafers may be produced by heat treating the silicon wafer, resting on a substrate holder, a specific substrate holder used depending on the wafer doping. For each holder, maximum heating rates are selected to avoid formation of slippages.

    摘要翻译: 不具有通过与硅晶片接合而产生的外延沉积层或层的硅晶片,氮浓度为1×1013-8.1014原子/ cm3,氧浓度为5.2×1017〜7.5×1017原子/ cm3,a 中心厚度BMD密度为3·108-2·1010cm-3,线性滑移的累积长度为3cm,面积滑移区域的累积面积为7cm 2,前表面具有<45个氮诱导缺陷 DNN通道中的>0.13μmLSE,厚度至少为5μm的层,其中发生尺寸为≥0.09μm的nlE; 1×104 COPs / cm 3,厚度≥5μm的无BMD层。 这样的晶片可以通过热处理硅晶片,放置在基板保持器上,根据晶片掺杂使用的特定的基板保持器来制造。 对于每个保持器,选择最大加热速率以避免形成滑动。