Methods and arrangements for forming a single interpoly dielectric layer in a semiconductor device
    1.
    发明授权
    Methods and arrangements for forming a single interpoly dielectric layer in a semiconductor device 有权
    在半导体器件中形成单个互间电介质层的方法和布置

    公开(公告)号:US06433383B1

    公开(公告)日:2002-08-13

    申请号:US09357333

    申请日:1999-07-20

    IPC分类号: H01L27108

    摘要: A single interpoly dielectric layer is provided for use in semiconductor devices. The single interpoly dielectric layer being formed of silicon graded such that certain regions within the single interpoly dielectric layer are either oxygen-rich or nitrogen-rich. The single interpoly dielectric layer can be formed in-situ within a single deposition tool. In certain embodiments, the resulting single interpoly dielectric layer can be made thinner and/or can be formed to provide improved dielectric characteristics when compared to a conventional oxide-nitride-oxide (ONO) interpoly dielectric layer that has three separate and unique layers. Thus, the single interpoly dielectric layer is highly desirable for use in reduced-size semiconductor devices and/or semiconductor devices requiring improved data retention capabilities, such as non-volatile memory cells.

    摘要翻译: 提供了一个用于半导体器件的单互补电介质层。 由硅分级形成的单个间隔电介质层使得单个互间介电层内的某些区域是富氧或富含氮的。 单个间隔电介质层可以在单个沉积工具内原位形成。 在某些实施例中,当与具有三个独立且独特的层的常规氧化物 - 氮化物 - 氧化物(ONO)间隔电介质层相比时,所得到的单个间隔电介质层可以制成更薄和/或可形成以提供改善的介电特性。 因此,对于需要改进的数据保持能力的尺寸较小的半导体器件和/或半导体器件(例如非易失性存储器单元),单个互聚电介质层是非常需要的。

    System and method for improving reliability in a semiconductor device
    4.
    发明授权
    System and method for improving reliability in a semiconductor device 有权
    用于提高半导体器件的可靠性的系统和方法

    公开(公告)号:US08802537B1

    公开(公告)日:2014-08-12

    申请号:US11189874

    申请日:2005-07-27

    IPC分类号: H01L21/76

    CPC分类号: H01L21/76224 H01L21/02057

    摘要: A method for forming a memory device is provided. A nitride layer is formed over a substrate. The nitride layer and the substrate are etched to form a trench. The memory device is pre-cleaned to prepare a surface of the memory device for oxide formation thereon, where cleaning the memory device removes portions of the barrier oxide layer on opposite sides of the trench. The nitride layer is trimmed on opposite sides of the trench. A liner oxide layer is formed in the trench.

    摘要翻译: 提供了一种用于形成存储器件的方法。 在衬底上形成氮化物层。 蚀刻氮化物层和衬底以形成沟槽。 存储器件被预先清洁以准备用于其上形成氧化物的存储器件的表面,其中清洁存储器件去除沟槽相对侧上的阻挡氧化物层的部分。 在沟槽的相对侧上修整氮化物层。 在沟槽中形成衬里氧化物层。

    Flash memory cells having trenched storage elements
    5.
    发明授权
    Flash memory cells having trenched storage elements 有权
    具有沟槽存储元件的闪存单元

    公开(公告)号:US08742486B2

    公开(公告)日:2014-06-03

    申请号:US11702846

    申请日:2007-02-05

    IPC分类号: H01L29/68

    摘要: An embodiment of the present invention is directed to a memory cell. The memory cell includes a first trench formed in a semiconductor substrate and a second trench formed in said semiconductor substrate adjacent to said first trench. The first trench and the second trench each define a first side wall and a second sidewall respectively. The memory cell further includes a first storage element formed on the first sidewall of the first trench and a second storage element formed on the second sidewall of the second trench.

    摘要翻译: 本发明的实施例涉及存储单元。 存储单元包括形成在半导体衬底中的第一沟槽和形成在与所述第一沟槽相邻的所述半导体衬底中的第二沟槽。 第一沟槽和第二沟槽分别限定第一侧壁和第二侧壁。 存储单元还包括形成在第一沟槽的第一侧壁上的第一存储元件和形成在第二沟槽的第二侧壁上的第二存储元件。

    Method for fabricating memory cells having split charge storage nodes
    8.
    发明授权
    Method for fabricating memory cells having split charge storage nodes 有权
    用于制造具有分离电荷存储节点的存储单元的方法

    公开(公告)号:US09159568B2

    公开(公告)日:2015-10-13

    申请号:US11639666

    申请日:2006-12-15

    摘要: Memory cells having split charge storage nodes and methods for fabricating memory cells having split charge storage nodes are disclosed. A disclosed method includes forming a first trench and an adjacent second trench in a semiconductor substrate, the first trench and the second trench each defining a first sidewall and a second sidewall respectively and forming a first source/drain region in the substrate and a second source/drain region in the substrate, where the first source/drain region and the second source/drain region are formed substantially under the first trench and the second trench in the semiconductor substrate respectively. Moreover, a method includes forming a bit line punch through barrier in the substrate between the first source/drain region and the second source drain region and forming a first storage element on the first sidewall of the first trench and a second storage element on the second sidewall of the second element. A word line is formed in contact with the first storage element and the second storage element.

    摘要翻译: 公开了具有分割电荷存储节点的存储单元和用于制造具有分离电荷存储节点的存储单元的方法。 所公开的方法包括在半导体衬底中形成第一沟槽和相邻的第二沟槽,第一沟槽和第二沟槽分别限定第一侧壁和第二侧壁,并在衬底中形成第一源极/漏极区域,第二源极 /漏极区域,其中第一源极/漏极区域和第二源极/漏极区域分别基本上形成在半导体衬底中的第一沟槽和第二沟槽下方。 此外,一种方法包括在第一源极/漏极区域和第二源极漏极区域之间的衬底中形成位线穿通阻挡层,并在第一沟槽的第一侧壁上形成第一存储元件,在第二沟槽的第二沟槽上形成第二存储元件 第二元件的侧壁。 形成与第一存储元件和第二存储元件接触的字线。