公开(公告)号：US20060255016A1

公开(公告)日：2006-11-16

申请号：US11489874

申请日：2006-07-19

申请人： Julia Svirchevski ,  Saket Chadda ,  Ismail Emesh ,  Thomas Laursen ,  Bentley Palmer ,  Sanjay Basak ,  Krishna Murella

发明人： Julia Svirchevski ,  Saket Chadda ,  Ismail Emesh ,  Thomas Laursen ,  Bentley Palmer ,  Sanjay Basak ,  Krishna Murella

IPC分类号： C03C15/00 ,  H01L21/461

CPC分类号： B24B27/0023 ,  B24B37/042 ,  B24B37/345 ,  H01L21/3212

摘要： A method for polishing a metal layer on a workpiece is provided wherein relative motion is produced between the metal layer and a polishing surface and wherein the metal layer has a polish resistant film thereon. The metal layer is first pre-treated to substantially remove the polish resistant film. Next, the metal layer is polished at low pressure between the metal layer and the polishing surface in the presence of a polishing solution. The pretreating may be accomplished by, for example, sputtering, polishing the polish-resistant film in the presence of abrasive polishing solution, polishing the polish-resistant film at higher pressures between the film and the polishing surface, maintaining the temperature of the pretreating step to be substantially between 10 degrees Centigrade and 30 degrees Centigrade, and chemically removing the film.

摘要翻译： 提供了一种在工件上抛光金属层的方法，其中在金属层和抛光表面之间产生相对运动，并且其中金属层在其上具有防抛光膜。 首先对金属层进行预处理以基本上除去耐抛光膜。 接着，在抛光液的存在下，金属层在金属层与研磨面之间以低压被抛光。 预处理可以通过例如溅射来实现，在研磨抛光溶液的存在下抛光耐抛光膜，在膜和抛光表面之间以更高的压力抛光耐抛光膜，保持预处理步骤的温度 基本上在10摄氏度和30摄氏度之间，并化学去除膜。