Invention Grant
- Patent Title: Post metal chemical mechanical polishing dry cleaning
- Patent Title (中): 后金属化学机械抛光干洗
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Application No.: US11926578Application Date: 2007-10-29
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Publication No.: US07772113B2Publication Date: 2010-08-10
- Inventor: Heinrich Ollendorf , Stacey Cabral , Robert Fuller
- Applicant: Heinrich Ollendorf , Stacey Cabral , Robert Fuller
- Applicant Address: DE Munic
- Assignee: Qimonda AG
- Current Assignee: Qimonda AG
- Current Assignee Address: DE Munic
- Agency: Brinks Hofer Gilson & Lione
- Main IPC: H01L21/4763
- IPC: H01L21/4763

Abstract:
Metal residue on a semiconductor surface resulting from metal chemical mechanical polishing (“CMP”) process are eradicated using a dry clean process. The dry cleaning uniformly removes or substantially eliminates metal residue from the surface of the semiconductor. An unintended metal short that may be present due to the residue may thereby be eliminated by adjusting the dry cleaning process based on a type of dry cleaning material, and type and a thickness of the residue.
Public/Granted literature
- US20080092921A1 POST METAL CHEMICAL MECHANICAL POLISHING DRY CLEANING Public/Granted day:2008-04-24
Information query
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