公开(公告)号：US20080084650A1

公开(公告)日：2008-04-10

申请号：US11866646

申请日：2007-10-03

申请人： Ganesh Balasubramanian ,  Amit Bansal ,  Eller Juco ,  Mohamad Ayoub ,  Hyung-Joon Kim ,  Karthik Janakiraman ,  Sudha Rathi ,  Deenesh Padhi ,  Martin Seamons ,  Visweswaren Sivaramakrishnan ,  Bok Kim ,  Amir Al-Bayati ,  Derek Witty ,  Hichem M'Saad ,  Anton Baryshnikov ,  Chiu Chan ,  Shuang Liu

发明人： Ganesh Balasubramanian ,  Amit Bansal ,  Eller Juco ,  Mohamad Ayoub ,  Hyung-Joon Kim ,  Karthik Janakiraman ,  Sudha Rathi ,  Deenesh Padhi ,  Martin Seamons ,  Visweswaren Sivaramakrishnan ,  Bok Kim ,  Amir Al-Bayati ,  Derek Witty ,  Hichem M'Saad ,  Anton Baryshnikov ,  Chiu Chan ,  Shuang Liu

IPC分类号： H01L21/683

CPC分类号： H01L21/6831 ,  C23C16/52 ,  H01J37/32431 ,  H01L21/67069 ,  H01L21/67253

摘要： The present invention generally provides methods and apparatus for monitoring and maintaining flatness of a substrate in a plasma reactor. Certain embodiments of the present invention provide a method for processing a substrate comprising positioning the substrate on an electrostatic chuck, applying an RF power between the an electrode in the electrostatic chuck and a counter electrode positioned parallel to the electrostatic chuck, applying a DC bias to the electrode in the electrostatic chuck to clamp the substrate on the electrostatic chuck, and measuring an imaginary impedance of the electrostatic chuck.

摘要翻译： 本发明通常提供了用于监测和维持等离子体反应器中的基板的平坦度的方法和装置。 本发明的某些实施例提供了一种处理衬底的方法，包括将衬底定位在静电吸盘上，在静电吸盘中的电极与平行于静电吸盘的对置电极之间施加RF功率，将DC偏压施加到 静电卡盘中的电极将基板夹在静电卡盘上，并测量静电卡盘的假想阻抗。