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    • 2. 发明授权
    • Semiconductor wafer, apparatus and process for producing the semiconductor wafer
    • 用于制造半导体晶片的半导体晶片,装置和工艺
    • US07867059B2
    • 2011-01-11
    • US11941171
    • 2007-11-16
    • Georg PietschMichael KerstanWerner Blaha
    • Georg PietschMichael KerstanWerner Blaha
    • B24B49/00
    • H01L21/02013B24B7/17B24B7/228B24D7/14
    • The invention relates to a process for producing a semiconductor wafer by double-side grinding of the semiconductor wafer, in which the semiconductor wafer is simultaneously ground on both sides, first by rough-grinding and then by finish-grinding, using a grinding tool. The semiconductor wafer, between the rough-grinding and the finish-grinding, remains positioned in the grinding machine, and the grinding tool continues to apply a substantially constant load during the transition from rough-grinding to finish-grinding. The invention also relates to an apparatus for carrying out the process and to a semiconductor wafer having a local flatness value on a front surface of less than 16 nm in a measurement window of 2 mm×2 mm area and of less than 40 nm in a measurement window of 10 mm×10 mm area.
    • 本发明涉及通过半导体晶片的双面研磨制造半导体晶片的方法,其中半导体晶片在两侧同时研磨,首先通过粗磨,然后使用研磨工具进行精磨。 在粗磨和精磨之间的半导体晶片保持定位在研磨机中,并且研磨工具在从粗磨到精磨过渡期间继续施加基本恒定的载荷。 本发明还涉及一种用于在2mm×2mm面积的测量窗口中在小于16nm的前表面上具有局部平坦度值并且小于40nm的半导体晶片的半导体晶片 测量窗口为10mm×10 mm面积。