发明授权
US07582221B2 Wafer manufacturing method, polishing apparatus, and wafer 失效
晶圆制造方法,抛光装置和晶片

Wafer manufacturing method, polishing apparatus, and wafer
摘要:
The present invention provides a wafer manufacturing method and a wafer polishing apparatus which enable control of sags in a periphery of a wafer and improvement of nanotopology values thereof that is strongly required recently, and a wafer. In a polishing process for making a mirror surface of the wafer, a back surface of the wafer is polished to produce a reference plane thereof.
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