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    • 10. 发明授权
    • Apparatus and method for cleaning semiconductor substrate
    • 用于清洁半导体衬底的装置和方法
    • US08758521B2
    • 2014-06-24
    • US12845371
    • 2010-07-28
    • Yoshihiro OgawaHajime OnodaHiroshi Kawamoto
    • Yoshihiro OgawaHajime OnodaHiroshi Kawamoto
    • B08B3/04
    • H01L21/67028B08B3/022C11D11/0047H01L21/02057
    • A semiconductor substrate cleaning method includes cleaning a semiconductor substrate formed with a line-and-space pattern, rinsing the substrate, supplying the rinse water to rinse the substrate, and drying the substrate. The rinsing includes supplying deionized water and hydrochloric acid into a mixing section to mix the deionized water and the hydrochloric acid into a mixture, heating the mixture in the mixing section by a heater, detecting a pH value and a temperature of the mixture by a pH sensor and a temperature sensor respectively, adjusting an amount of hydrochloric acid supplied into the mixing section so that the rinse water has a predetermined pH value indicative of acidity, and energizing or de-energizing the heater so that the temperature of the mixture detected by the temperature sensor reaches a predetermined temperature, thereby producing the rinse water which has a temperature of not less than 70° C. and is acidic.
    • 半导体衬底清洁方法包括清洗形成有线间距图案的半导体衬底,漂洗衬底,供应冲洗水以冲洗衬底以及干燥衬底。 漂洗包括将去离子水和盐酸加入到混合部分中以将去离子水和盐酸混合成混合物,通过加热器加热混合部分中的混合物,通过pH检测混合物的pH值和温度 传感器和温度传感器,调节供应到混合部分中的盐酸的量,使得冲洗水具有指示酸度的预定pH值,以及给加热器通电或断电,使得由 温度传感器达到预定温度,从而产生温度不低于70℃并呈酸性的冲洗水。