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    • 5. 发明申请
    • CLEAN RATE IMPROVEMENT BY PRESSURE CONTROLLED REMOTE PLASMA SOURCE
    • 压力控制远程等离子体源的清洁率改进
    • US20090023241A1
    • 2009-01-22
    • US12174408
    • 2008-07-16
    • Gaku FurutaLiwei LiTakao HashimotoSoo Young Choi
    • Gaku FurutaLiwei LiTakao HashimotoSoo Young Choi
    • H01L21/20H05H1/00
    • B08B7/0035C23C16/24C23C16/4405
    • The present invention generally comprises a method for cleaning a large area substrate processing chamber. As chamber volume increases, it has surprisingly been found that simply scaling up the cleaning conditions may not effectively clean silicon from the exposed chamber surfaces. Undesired silicon deposits on exposed chamber surfaces may lead to contamination in solar panel formation. Increasing the pressure of the chamber to about 10 Torr or greater while maintaining the chamber at a temperature between about 150 degrees Celsius and 250 degrees Celsius increases plasma cleaning effectiveness such that silicon deposits are removed from the chamber. The combination of high pressure and low temperature may reduce substrate contamination without sacrificing substrate throughput in solar panel fabrication.
    • 本发明通常包括清洗大面积基板处理室的方法。 随着室体积的增加,令人惊讶地发现,简单地放大清洁条件可能不能有效地从暴露的室表面清洁硅。 暴露的室表面上的不期望的硅沉积物可能导致太阳能电池板形成中的污染。 将室的压力提高到约10托或更高,同时将室保持在约150摄氏度和250摄氏度之间的温度,增加等离子体清洁效果,使得硅沉积物从室中移除。 高压和低温的组合可以减少基板污染,而不会牺牲太阳能电池板制造中的基板产量。