发明授权
US5993302A Carrier head with a removable retaining ring for a chemical mechanical polishing apparatus 失效
载体头带有用于化学机械抛光装置的可移除的保持环

Carrier head with a removable retaining ring for a chemical mechanical
polishing apparatus
摘要:
A carrier head for a chemical mechanical polishing apparatus includes a detachable retaining ring which may be used for centering the substrate during substrate loading.
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