Invention Application
- Patent Title: EDGE HUMP REDUCTION FACEPLATE BY PLASMA MODULATION
- Patent Title (中): 通过等离子体调制进行边缘衰减
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Application No.: US14594296Application Date: 2015-01-12
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Publication No.: US20150247237A1Publication Date: 2015-09-03
- Inventor: Sungwon HA , Kwangduk Douglas LEE , Ganesh BALASUBRAMANIAN , Juan Carlos ROCHA-ALVAREZ , Martin Jay SEAMONS , Ziqing DUAN , Zheng John YE , Bok Hoen KIM , Lei JING , Ngoc LE , Ndanka MUKUTI
- Applicant: Applied Materials, Inc.
- Main IPC: C23C16/44
- IPC: C23C16/44 ; C23C16/455 ; C23C16/50

Abstract:
Embodiments described herein relate to a faceplate for improving film uniformity. A semiconductor processing apparatus includes a pedestal, an edge ring and a faceplate having distinct regions with differing hole densities. The faceplate has an inner region and an outer region which surrounds the inner region. The inner region has a greater density of holes formed therethrough when compared to the outer region. The inner region is sized to correspond with a substrate being processed while the outer region is sized to correspond with the edge ring.
Public/Granted literature
- US10100408B2 Edge hump reduction faceplate by plasma modulation Public/Granted day:2018-10-16
Information query
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