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    • 5. 发明授权
    • Semiconductor wafer cleaning apparatus
    • SEMICONDUCTOR WAFER CLEANING APPARATUS
    • US5196034A
    • 1993-03-23
    • US737666
    • 1991-07-30
    • Toshiki OnoShiro YamasakiToshihiko Noguchi
    • Toshiki OnoShiro YamasakiToshihiko Noguchi
    • H01L21/304H01L21/00
    • H01L21/67028Y10T29/41
    • A semiconductor wafer cleaning apparatus provided with an ice making unit and a jet nozzle for ejecting fine ice particles against a wafer held within a cleaning vessel includes an exhaust chamber having an expanded portion and connected to the cleaning vessel. Curved guide plates extend from cleaning vessel into the exhaust chamber equidistant from each other into the expanded portion to guide the jet particles into the expanded portion. A flow regulator plate having a multitude of inverted frustum-shaped tapered holes regulates the jetted particles within the cleaning bath in accordance with the downward flow direction. Further, the upward flow from the exhaust chamber along the side walls is caught by stopper plates and exhausted via exhaust ports.
    • 设置有制冰单元和喷射喷嘴的半导体晶片清洁设备包括具有扩展部分并连接到清洁容器的排气室,所述制冷单元和喷嘴用于将保存在清洁容器内的晶片喷射到精细冰颗粒。 弯曲的引导板从清洁容器延伸到排放室中,彼此等距离地放入扩展部分中,以将射流颗粒引导到扩展部分中。 具有多个反向截头锥形锥形孔的流量调节板根据向下流动方向调节清洗槽内的喷射颗粒。 此外,从排气室沿着侧壁的向上流动被止动板卡住,并通过排气口排出。