Reducing wafer bonding misalignment by varying thermal treatment prior to bonding
    9.
    发明授权
    Reducing wafer bonding misalignment by varying thermal treatment prior to bonding 有权
    在接合之前通过改变热处理来减少晶片接合失准

    公开(公告)号:US09190303B2

    公开(公告)日:2015-11-17

    申请号:US14716236

    申请日:2015-05-19

    摘要: A bonding layer of a first wafer article is thermally treated and a bonding layer of a second wafer article is thermally treated in accordance with first and second process parameters, respectively prior to bonding the first wafer article with the second wafer article. First and second grid distortion in the first and second wafer articles is measured and a difference is determined between the first and second grid distortions. A prediction is made for maintaining the difference within a prescribed tolerance. At least one of the first process parameters and the second process parameters is conditionally varied in accordance with the prediction. The thermal treating of the first and second wafer articles can then be performed with respect to another pair of the first and second wafer articles prior to bonding to one another through their respective bonding layers.

    摘要翻译: 对第一晶片制品的接合层进行热处理,并且在将第一晶片制品与第二晶片制品接合之前,分别根据第一和第二工艺参数对第二晶片制品的粘结层进行热处理。 测量第一和第二晶片制品中的第一和第二网格变形,并且在第一和第二格栅失真之间确定差异。 进行预测以将差异保持在规定的公差内。 第一处理参数和第二处理参数中的至少一个根据预测有条件地变化。 然后可以在通过其各自的结合层彼此粘合之前相对于另一对第一和第二晶片制品执行第一和第二晶片制品的热处理。