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    • 3. 发明授权
    • Simplified method for cleaning silicon wafers after application of laser marks
    • 在应用激光标记之后清洁硅晶片的简化方法
    • US06273099B1
    • 2001-08-14
    • US09108412
    • 1998-07-01
    • Chun Chieh ChangKuo-Fong ChenJung-Hui Kao
    • Chun Chieh ChangKuo-Fong ChenJung-Hui Kao
    • B08B304
    • H01L21/02052B08B3/12Y10S134/902
    • A simplified cleaning method for the removal of particulates and adherent residues resulting from the incorporation of laser identification marks onto silicon wafers is described. The cleaning method consists of first immersing the wafers in a heated ammoniacal/hydrogen peroxide RCA-SC-1 cleaning solution in the presence of megasonic agitation. This is followed by a immersion rinse in de-ionized water heated to at least 50° C. Finally the wafers are subjected to at least three quick-dump rinses in room temperature de-ionized water and dried. It is found that the hot de-ionized water rinse provides adequate removal of chemical residues remaining after the particle dislodging action of the megasonically agitated RCA SC-1 solution to eliminate the need for application of the acidic/hydrogen peroxide RCA SC-2 treatment.
    • 描述了通过将激光识别标记结合到硅晶片上而导致的微粒和粘附残留物的简化清洁方法。 该清洁方法包括首先将晶片浸入加热的氨/过氧化氢RCA-SC-1清洗溶液中,在这种情况下在超声波搅拌下进行。 然后在加热到至少50℃的去离子水中进行浸渍冲洗。最后将晶片在室温去离子水中经受至少三次快速倾倒冲洗并干燥。 发现热去离子水漂洗可以充分去除在经典搅拌的RCA SC-1溶液的颗粒脱落作用后残留的化学残留物,以消除对酸/过氧化氢RCA SC-2处理的应用。