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公开(公告)号:US07686927B1
公开(公告)日:2010-03-30
申请号:US11510048
申请日:2006-08-25
申请人: Jonathan D. Reid , Steven T. Mayer , Seshasayee Varadarajan , David C. Smith , Evan E. Patton , Dinesh S. Kalakkad , Gary Lind , Richard S. Hill
发明人: Jonathan D. Reid , Steven T. Mayer , Seshasayee Varadarajan , David C. Smith , Evan E. Patton , Dinesh S. Kalakkad , Gary Lind , Richard S. Hill
IPC分类号: C25D17/00
CPC分类号: H01L21/2885 , C25D17/001 , Y10S414/135 , Y10S414/136
摘要: The orientation of a wafer with respect to the surface of an electrolyte is controlled during an electroplating process. The wafer is delivered to an electrolyte bath along a trajectory normal to the surface of the electrolyte. Along this trajectory, the wafer is angled before entry into the electrolyte for angled immersion. A wafer can be plated in an angled orientation or not, depending on what is optimal for a given situation. Also, in some designs, the wafer's orientation can be adjusted actively during immersion or during electroplating, providing flexibility in various electroplating scenarios.
摘要翻译: 在电镀过程中控制晶片相对于电解质表面的取向。 将晶片沿着垂直于电解质表面的轨迹输送到电解质浴中。 沿着该轨迹,晶片在进入电解质之前是成角度的,用于倾斜的浸入。 根据给定情况下的最佳选择,晶圆可以以倾斜的方向进行电镀。 此外,在一些设计中,晶片的取向可以在浸入期间或在电镀期间被主动调节,从而在各种电镀场景中提供灵活性。