Methods for fabricating dual bit flash memory devices
    1.
    发明授权
    Methods for fabricating dual bit flash memory devices 有权
    制造双位闪存器件的方法

    公开(公告)号:US07732281B1

    公开(公告)日:2010-06-08

    申请号:US11410695

    申请日:2006-04-24

    IPC分类号: H01L21/336

    摘要: Methods for fabricating dual bit memory devices are provided. In an exemplary embodiment of the invention, a method for fabricating a dual bit memory device comprises forming a charge trapping layer overlying a substrate and etching an isolation opening through the charge trapping layer. An oxide layer is formed overlying the charge trapping layer and within the isolation opening. A control gate is fabricated overlying the isolation opening and portions of the charge trapping layer adjacent to the isolation opening. The oxide layer and the charge trapping layer are etched using the control gate as an etch mask and impurity dopants are implanted into the substrate using the control gate as an implantation mask.

    摘要翻译: 提供了制造双位存储器件的方法。 在本发明的示例性实施例中,一种用于制造双位存储器件的方法包括形成覆盖衬底的电荷俘获层,并蚀刻穿过电荷俘获层的隔离开口。 在电荷俘获层之上和隔离开口内形成氧化物层。 制造控制栅极覆盖隔离开口和邻近隔离开口的电荷捕获层的部分。 使用控制栅极作为蚀刻掩模蚀刻氧化物层和电荷俘获层,并且使用控制栅极作为注入掩模将杂质掺杂剂注入到衬底中。

    Methods for fabricating dual bit flash memory devices
    2.
    发明授权
    Methods for fabricating dual bit flash memory devices 有权
    制造双位闪存器件的方法

    公开(公告)号:US07867848B2

    公开(公告)日:2011-01-11

    申请号:US12765646

    申请日:2010-04-22

    IPC分类号: H01L21/8239

    摘要: Methods for fabricating dual bit memory devices are provided. In an exemplary embodiment of the invention, a method for fabricating a dual bit memory device comprises forming a charge trapping layer overlying a substrate and etching an isolation opening through the charge trapping layer. An oxide layer is formed overlying the charge trapping layer and within the isolation opening. A control gate is fabricated overlying the isolation opening and portions of the charge trapping layer adjacent to the isolation opening. The oxide layer and the charge trapping layer are etched using the control gate as an etch mask and impurity dopants are implanted into the substrate using the control gate as an implantation mask.

    摘要翻译: 提供了制造双位存储器件的方法。 在本发明的示例性实施例中,一种用于制造双位存储器件的方法包括形成覆盖衬底的电荷俘获层,并蚀刻穿过电荷俘获层的隔离开口。 在电荷俘获层之上和隔离开口内形成氧化物层。 制造控制栅极覆盖隔离开口和邻近隔离开口的电荷捕获层的部分。 使用控制栅极作为蚀刻掩模蚀刻氧化物层和电荷俘获层,并且使用控制栅极作为注入掩模将杂质掺杂剂注入到衬底中。

    Treatment of dielectric material to enhance etch rate
    8.
    发明授权
    Treatment of dielectric material to enhance etch rate 有权
    处理电介质材料以提高蚀刻速率

    公开(公告)号:US06905971B1

    公开(公告)日:2005-06-14

    申请号:US10331938

    申请日:2002-12-30

    CPC分类号: H01L21/31116 H01L21/31122

    摘要: In one embodiment, the present invention relates to a method for pre-treating and etching a dielectric layer in a semiconductor device comprising the steps of: (A) pre-treating one or more exposed portions of a dielectric layer with a plasma in a plasma etching tool to increase removal rate of the one or more exposed portions upon etching; and (B) removing the one or more exposed portions of the dielectric layer in the same plasma etching tool of step (A) via plasma etching.

    摘要翻译: 在一个实施例中,本发明涉及一种用于在半导体器件中预处理和蚀刻电介质层的方法,包括以下步骤:(A)用等离子体中的等离子体预处理介电层的一个或多个暴露部分 蚀刻工具,以在蚀刻时增加一个或多个暴露部分的去除速率; 和(B)通过等离子体蚀刻在步骤(A)的相同等离子体蚀刻工具中去除介电层的一个或多个暴露部分。

    Etch stop layer for etching FinFET gate over a large topography
    9.
    发明授权
    Etch stop layer for etching FinFET gate over a large topography 有权
    蚀刻停止层,用于在大地形上蚀刻FinFET栅极

    公开(公告)号:US06787476B1

    公开(公告)日:2004-09-07

    申请号:US10632989

    申请日:2003-08-04

    IPC分类号: H01L21302

    摘要: A method of forming a gate for a Fin Field Effect Transistor (FinFET) is provided. The method includes forming a first layer of material over a fin and forming a second layer over the first layer. The second layer includes either Ti or TiN. The method further includes forming a third layer over the second layer. The third layer includes an anti-reflective coating. The method also includes etching the first, second and third layers to form the gate for the FinFET.

    摘要翻译: 提供了一种形成Fin场效应晶体管(FinFET)的栅极的方法。 该方法包括在翅片上形成第一层材料,并在第一层上形成第二层。 第二层包括Ti或TiN。 该方法还包括在第二层上形成第三层。 第三层包括抗反射涂层。 该方法还包括蚀刻第一,第二和第三层以形成用于FinFET的栅极。