Invention Application
- Patent Title: METHOD OF REDUCING DEFECTS IN A MULTI-LAYER PECVD TEOS OXIDE FILM
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Application No.: US17074961Application Date: 2020-10-20
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Publication No.: US20220119952A1Publication Date: 2022-04-21
- Inventor: Rana Howlader , Hang Yu , Madhu Santosh Kumar Mutyala , Zheng John Ye , Abhigyan Keshri , Sanjay Kamath , Daemian Raj Benjamin Raj , Deenesh Padhi
- 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
- Main IPC: C23C16/50
- IPC: C23C16/50 ; C23C16/40 ; H01L21/02 ; C23C16/458 ; C23C16/455

Abstract:
Exemplary deposition methods may include electrostatically chucking a semiconductor substrate at a first voltage within a processing region of a semiconductor processing chamber. The methods may include performing a deposition process. The deposition process may include forming a plasma within the processing region of the semiconductor processing chamber. The methods may include halting formation of the plasma within the semiconductor processing chamber. The methods may include, simultaneously with the halting, increasing the first voltage of electrostatic chucking to a second voltage. The methods may include purging the processing region of the semiconductor processing chamber.
Information query
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