2.
    发明专利
    未知

    公开(公告)号:DE102006018234A1

    公开(公告)日:2007-10-04

    申请号:DE102006018234

    申请日:2006-04-19

    Abstract: A charge-trapping device includes a field effect transistor, which has source and drain regions. The source and drain regions have a dopant concentration profile, which has a gradient each in a vertical and a lateral direction with respect to a surface of a semiconductor substrate. The gradient in the lateral direction towards a depletion region of the transistor is larger than the gradient in the vertical direction towards a well region.

    4.
    发明专利
    未知

    公开(公告)号:DE102005027714A1

    公开(公告)日:2006-12-07

    申请号:DE102005027714

    申请日:2005-06-15

    Abstract: An oxidized region is arranged between a substrate of semiconductor material and a nitride liner, which covers wordline stacks of a memory cell array and intermediate areas of the substrate, and is provided to separate the nitride liner both from the substrate and from a memory layer sequence of dielectric materials that is provided for charge-trapping. The nitride liner is used as an etching stop layer in the formation of sidewall spacers used in a peripheral area to produce source/drain junctions of transistors of the addressing circuitry.

    6.
    发明专利
    未知

    公开(公告)号:DE102005020342A1

    公开(公告)日:2006-10-12

    申请号:DE102005020342

    申请日:2005-05-02

    Abstract: The surfaces of wordline stacks and intermediate areas of a main substrate surface are covered with an oxynitride liner. Either sidewall spacers of BPSG are formed or a further liner of nitride is deposited and spacers of oxide are formed. These spacers are used in a peripheral area of addressing circuitry to implant doped source/drain regions. The oxynitride reduces the stress between the nitride and the semiconductor material and prevents charge carriers from penetrating out of a memory layer of nitride into the liner.

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