13.
    发明专利
    未知

    公开(公告)号:DE10137570A1

    公开(公告)日:2003-02-27

    申请号:DE10137570

    申请日:2001-07-30

    Abstract: A method and an apparatus for implementing the method produces at least one depression as a microstructure, in particular, a deep trench, in a semiconductor material, in particular, during the production of DRAMs and heats an area of at least one depression in the semiconductor material during an etching step, at least from time to time and/or locally. Such a configuration makes it possible to produce depressions in semiconductor materials efficiently, in particular, those with a high aspect ratio.

    16.
    发明专利
    未知

    公开(公告)号:DE10245636A1

    公开(公告)日:2003-09-25

    申请号:DE10245636

    申请日:2002-09-30

    Abstract: A chemical mechanical polishing process rotates a wafer having an alignment mark at a wafer rotation rate and a polishing surface at an off-matched rotation rate. The wafer rotation rate and the off-matched rotation rate are not equal. The wafer rotating at the wafer rotation rate and the polishing surface rotating at the off-matched rotation rate touch to polish a plurality of points on the wafer. The rotation of the wafer rotating at the wafer rotation rate is adjusted with respect to the polishing surface rotating at the off-matched rotation rate to achieve an approximately zero averaged rotation rate velocity for each of the points on the wafer with respect to the polishing surface polishing the wafer upon a completion of the total polishing time.

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