Invention Grant
- Patent Title: Plasma abatement of compounds containing heavy atoms
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Application No.: US15486938Application Date: 2017-04-13
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Publication No.: US10449486B2Publication Date: 2019-10-22
- Inventor: Michael S. Cox , Monique McIntosh , Colin John Dickinson , Paul E. Fisher , Yutaka Tanaka , Zheng Yuan
- Applicant: Applied Materials, Inc.
- Applicant Address: US CA Santa Clara
- Assignee: Applied Materials, Inc.
- Current Assignee: Applied Materials, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Patterson + Sheridan, LLP
- Main IPC: B01D53/32
- IPC: B01D53/32 ; B01D53/64 ; B01J19/08 ; B01D53/54 ; B01D53/70 ; B01D53/76 ; H01J37/32

Abstract:
A plasma abatement process for abating effluent containing compounds from a processing chamber is described. A plasma abatement process takes gaseous foreline effluent from a processing chamber, such as a deposition chamber, and reacts the effluent within a plasma chamber placed in the foreline path. The plasma dissociates the compounds within the effluent, converting the effluent into more benign compounds. Abating reagents may assist in the abating of the compounds. The abatement process may be a volatizing or a condensing abatement process. Representative volatilizing abating reagents include, for example, CH4, H2O, H2, NF3, SF6, F2, HCl, HF, Cl2, and HBr. Representative condensing abating reagents include, for example, H2, H2O, O2, N2, O3, CO, CO2, NH3, N2O, CH4, and combinations thereof.
Public/Granted literature
- US20190022577A9 PLASMA ABATEMENT OF COMPOUNDS CONTAINING HEAVY ATOMS Public/Granted day:2019-01-24
Information query
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