Galvanic Corrosion Inhibitors for Cu/Ru Couple During Chemical Mechanical Polishing of Ru

Author(s):  
Jie Cheng
2000 ◽  
Vol 39 (Part 1, No. 11) ◽  
pp. 6216-6222 ◽  
Author(s):  
Seiichi Kondo ◽  
Noriyuki Sakuma ◽  
Yoshio Homma ◽  
Naofumi Ohashi

2021 ◽  
Vol 11 (10) ◽  
pp. 4358
Author(s):  
Hanchul Cho ◽  
Taekyung Lee ◽  
Doyeon Kim ◽  
Hyoungjae Kim

The uniformity of the wafer in a chemical mechanical polishing (CMP) process is vital to the ultra-fine and high integration of semiconductor structures. In particular, the uniformity of the polishing pad corresponding to the tool directly affects the polishing uniformity and wafer shape. In this study, the profile shape of a CMP pad was predicted through a kinematic simulation based on the trajectory density of the diamond abrasives of the diamond conditioner disc. The kinematic prediction was found to be in good agreement with the experimentally measured pad profile shape. Based on this, the shape error of the pad could be maintained within 10 μm even after performing the pad conditioning process for more than 2 h, through the overhang of the conditioner.


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