Patent ID: 6093228
Filing Date: 2000-07-25
Classification: B01D,C23C

Abstract:
An apparatus for treating a plurality of by-products respectively generated in a corresponding plurality of sources during a semiconductor manufacturing process, comprising:a plurality of filtering devices, each of which provides communication between a respective source with a respective introducing duct for separating and collecting a respective by-product generated in said respective source in response to an airflow which carries said respective by-product from said respective source; anda vacuum system providing communication with said plurality of filtering devices and with a common introducing duct simultaneously for generating said airflow to carry said by-products,wherein each of said filtering devices includes:a body;an entrance provided on an upper portion of said body and having a first connection head to be communicated with said respective source generating said respective by-product for enabling said airflow to flow into said body;a powder trap mounted in said body for filtering said airflow to retain said respective by-product therein;a guiding device mounted between said entrance and said powder trap for guiding said airflow to pass said powder trap; andan exit provided on a lower portion of said body and having a second connection head to be communicated with said vacuum system for enabling said airflow to flow out.