HALBLEITERSPEICHER MIT VERTIKALEN SPEICHERTRANSISTOREN UND VERFAHREN ZU DESSEN HERSTELLUNG
    2.
    发明公开
    HALBLEITERSPEICHER MIT VERTIKALEN SPEICHERTRANSISTOREN UND VERFAHREN ZU DESSEN HERSTELLUNG 审中-公开
    带竖存储器晶体管和方法半导体存储器ITS

    公开(公告)号:EP1535345A1

    公开(公告)日:2005-06-01

    申请号:EP03747922.7

    申请日:2003-08-21

    Abstract: The invention relates to a semiconductor memory with a number of memory cells, whereby each memory cell comprises a semiconductor layer (p-well), arranged on a substrate (p-sub), the semiconductor surface of which comprises a stage between a deeper (10) and a shallower (12) semiconductor region, viewed in the substrate normal direction, at least one conducting doped deeper contact region (22, 24), embodied in the deeper semiconductor region (10),a conducting doped shallower contact region (20), embodied in the shallower semiconductor region (12), at least one channel region, running in the semiconductor layer (p-well) between the deeper (22, 24) and the shallower contact region (20), at least one electrically-insulating trapping layer (28), for the trapping and releasing of charge carriers arranged on a gate oxide layer (26) adjacent to the channel region and at least one gate electrode (32) for control of the electrical conductivity of the channel region, whereby the gate electrode (32) is partly adjacent to a control oxide layer (30) arranged on the trapping layer (28) and partly adjacent to the gate oxide layer (26) arranged on the channel region.

    HERSTELLUNGSVERFAHREN FÜR SPEICHERZELLE
    10.
    发明公开
    HERSTELLUNGSVERFAHREN FÜR SPEICHERZELLE 审中-公开
    HERSTELLUNGSVERFAHRENFÜRSPEICHERZELLE

    公开(公告)号:EP1472722A2

    公开(公告)日:2004-11-03

    申请号:EP03737237.2

    申请日:2003-01-23

    Abstract: The invention relates to NROM memory cells that are disposed in trenches that are etched into the semiconductor material. The memory layer composed of a nitride layer (3) that is interposed between two oxide layers (2, 4) is applied to the trench walls before the dopants for source and drain (7) are implanted. The implantation regions of source and drain are thus prevented from being damaged by the high temperature loads of the component during production of the memory layer as the respective dopant is introduced only later on. Polysilicon gate electrodes (5) are connected to word lines (11).

    Abstract translation: 本发明涉及设置在蚀刻到半导体材料中的沟槽中的NROM存储器单元。 在注入用于源极和漏极(7)的掺杂剂之前,将由介于两个氧化物层(2,4)之间的氮化物层(3)构成的存储层施加到沟槽壁。 因此在制造存储层期间防止源极和漏极的注入区域被组件的高温负载损坏,因为相应的掺杂剂仅在稍后被引入。 多晶硅栅电极(5)连接到字线(11)。

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