Ion sampling system for wafer

Cleaning and liquid contact with solids – Apparatus – With plural means for supplying or applying different fluids...

Reexamination Certificate

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Details

C134S095300, C134S103200, C134S105000, C134S137000, C134S155000, C134S198000, C134S902000, C156S345230, C156S345240, C422S261000

Reexamination Certificate

active

10604793

ABSTRACT:
An ion sampling method for wafer provides a wafer in a sampling chamber, wherein the wafer surface that is going to be sampled faces upward; spraying an extraction liquid continuously on the wafer surface to form a liquid film thereon; keeping the thickness of the film constant for dissolving the ion contaminants in the extraction liquid; and collecting the extract solution at the bottom of the sampling chamber.

REFERENCES:
patent: 3489608 (1970-01-01), Jacobs et al.
patent: 5601645 (1997-02-01), Nonomura et al.
patent: 5634980 (1997-06-01), Tomita et al.
patent: 6309981 (2001-10-01), Mayer et al.
patent: 6945259 (2005-09-01), Masui et al.
patent: 3-23623 (1991-01-01), None
patent: 2000-005710 (2000-01-01), None

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