22.
    发明专利
    未知

    公开(公告)号:DE19908809B4

    公开(公告)日:2007-02-01

    申请号:DE19908809

    申请日:1999-03-01

    Abstract: In a method is described for producing an MOS transistor structure with elevated body conductivity, a substrate layer is prepared and body regions are formed therein the body regions defining a main surface of the transistor structure and at least one channel region is also formed. Gate oxide and gate electrodes are formed in the region of the main surface, and source regions are formed that extend from the main surface into the body regions. An implantation of dopant of a first conductivity type occurs in at least a part of the channel region, this implantation dosage being controlled such that a re-doping of the body region into an area of the first conductivity type does not occur in the implantation region.

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