Invention Grant
- Patent Title: Methods and apparatus for passivating a target
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Application No.: US17838805Application Date: 2022-06-13
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Publication No.: US11661651B2Publication Date: 2023-05-30
- Inventor: Chao Du , Xing Chen , Keith A. Miller , Jothilingam Ramalingam , Jianxin Lei
- 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: Moser Taboada
- The original application number of the division: US16846505 2020.04.13
- Main IPC: H01J37/32
- IPC: H01J37/32 ; C23C14/34 ; C23C14/58 ; C23C14/02

Abstract:
Methods and apparatus for passivating a target are provided herein. For example, a method includes a) supplying an oxidizing gas into an inner volume of the process chamber; b) igniting the oxidizing gas to form a plasma and oxidize at least one of a target or target material deposited on a process kit disposed in the inner volume of the process chamber; and c) performing a cycle purge comprising: c1) providing air into the process chamber to react with the at least one of the target or target material deposited on the process kit; c2) maintaining a predetermined pressure for a predetermined time within the process chamber to generate a toxic by-product caused by the air reacting with the at least one of the target or target material deposited on the process kit; and c3) exhausting the process chamber to remove the toxic by-product.
Public/Granted literature
- US20220307126A1 METHODS AND APPARATUS FOR PASSIVATING A TARGET Public/Granted day:2022-09-29
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