专利名称:Sputtering Chamber Having ICP Coil and
六级分值
Targets on Top Wall
发明人:Ravi Mullapudi,Biju Ninan,Gabriel A.
Calebotta
申请号:US12239659
申请日:20080926
paula deanda公开号:US20100078312A1
actress是什么意思公开日:宝贝用德语怎么说
20100401
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待遇英文摘要:A vacuum chamber has multiple wafer positions, and the wafers are positioned by a rotating pallet. Above a wafer position in the chamber there may be a sputtering
target, a flat inductively coupled plasma (ICP) coil for etching the wafer and/or promoting sputtering, and a TEOS vapor outlet for forming an oxide film on the wafer. As the pallet rotates, a wafer may first have deposited a thin layer of oxide on walls of a via hole at the TEOS position. A metal layer may then be sputtered in the via hole at the sputtering position, and any pinch-off material may be etched away at an etching position.
A magnet behind each target scans back and forth behind the target. Vertical magnet walls substantially surround a sputtering target for confining the sputtered material to an angle that is more normal to the wafer than prior art trajectories to fill narrower vias.
申请人:Ravi Mullapudi,Biju Ninan,Gabriel A. Calebotta
地址:San Jo CA US,Cupertino CA US,Cupertino CA US
威胁英语国籍:US,US,US
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