SONOS non-volatile memory cell and fabricating method thereof
    1.
    发明授权
    SONOS non-volatile memory cell and fabricating method thereof 有权
    SONOS非易失性存储单元及其制造方法

    公开(公告)号:US08546226B2

    公开(公告)日:2013-10-01

    申请号:US13189632

    申请日:2011-07-25

    IPC分类号: H01L21/336 H01L29/792

    CPC分类号: H01L21/28282 H01L29/792

    摘要: A method for fabricating a silicon-oxide-nitride-oxide-silicon (SONOS) non-volatile memory cell, wherein the method comprises steps as following: a pad oxide layer and a first hard mask layer are sequentially formed on a substrate. The pad oxide layer and the first hard mask layer are then etched through to form an opening exposing a portion of the substrate. Subsequently, an oxide-nitride-oxide (ONO) structure with a size substantially less than or equal to the opening is formed to coincide with the portion of the substrate exposed from the opening.

    摘要翻译: 一种用于制造氧化硅 - 氧化物 - 氧化物 - 硅(SONOS)非易失性存储单元的方法,其中该方法包括以下步骤:在衬底上依次形成衬垫氧化物层和第一硬掩模层。 然后将衬垫氧化物层和第一硬掩模层蚀刻通过以形成露出衬底的一部分的开口。 随后,形成具有基本上小于或等于该开口的尺寸的氧化物 - 氧化物 - 氧化物(ONO)结构,以与从该开口露出的该基板的一部分重合。

    Method for forming semiconductor structure and method for forming memory using the same
    4.
    发明授权
    Method for forming semiconductor structure and method for forming memory using the same 有权
    用于形成半导体结构的方法和使用其形成存储器的方法

    公开(公告)号:US08383480B1

    公开(公告)日:2013-02-26

    申请号:US13295191

    申请日:2011-11-14

    IPC分类号: H01L21/336

    摘要: A method for forming a semiconductor structure includes following steps. A substrate structure is provided. The substrate structure includes a semiconductor substrate, a first oxide-nitride-oxide (ONO) layer, and a second ONO layer. The semiconductor substrate has first and second surfaces opposite to each other. The first ONO layer includes a first oxide layer, a first nitride layer and a second oxide layer formed on the first surface in sequence. The second ONO layer includes a third oxide layer, a second nitride layer and a fourth oxide layer formed on the second surface in sequence. A nitride mask layer is formed on the first ONO layer. The fourth oxide layer is removed. The second nitride layer and the nitride mask layer are removed. The second oxide layer and the third oxide layer are removed. A fifth oxide layer is formed on the first nitride layer.

    摘要翻译: 一种形成半导体结构的方法包括以下步骤。 提供了基板结构。 衬底结构包括半导体衬底,第一氧化物 - 氧化物 - 氧化物(ONO)层和第二ONO层。 半导体衬底具有彼此相对的第一和第二表面。 第一ONO层包括顺序地形成在第一表面上的第一氧化物层,第一氮化物层和第二氧化物层。 第二ONO层包括依次形成在第二表面上的第三氧化物层,第二氮化物层和第四氧化物层。 在第一ONO层上形成氮化物掩模层。 去除第四氧化物层。 去除第二氮化物层和氮化物掩模层。 去除第二氧化物层和第三氧化物层。 在第一氮化物层上形成第五氧化物层。

    Semiconductor device and method for fabricating semiconductor device
    5.
    发明授权
    Semiconductor device and method for fabricating semiconductor device 有权
    半导体装置及其制造方法

    公开(公告)号:US08629025B2

    公开(公告)日:2014-01-14

    申请号:US13403591

    申请日:2012-02-23

    IPC分类号: H01L29/792 H01L21/336

    摘要: A method for fabricating a semiconductor device is described. A stacked gate dielectric is formed over a substrate, including a first dielectric layer, a second dielectric layer and a third dielectric layer from bottom to top. A conductive layer is formed on the stacked gate dielectric and then patterned to form a gate conductor. The exposed portion of the third and the second dielectric layers are removed with a selective wet cleaning step. S/D extension regions are formed in the substrate with the gate conductor as a mask. A first spacer is formed on the sidewall of the gate conductor and a portion of the first dielectric layer exposed by the first spacer is removed. S/D regions are formed in the substrate at both sides of the first spacer. A metal silicide layer is formed on the S/D regions.

    摘要翻译: 对半导体装置的制造方法进行说明。 堆叠的栅极电介质形成在衬底上,包括从底部到顶部的第一介电层,第二电介质层和第三电介质层。 在堆叠的栅极电介质上形成导电层,然后将其图案化以形成栅极导体。 通过选择性湿式清洗步骤除去第三和第二介电层的暴露部分。 在栅极导体作为掩模的基板中形成S / D延伸区域。 在栅极导体的侧壁上形成第一间隔物,并且去除由第一间隔物露出的第一电介质层的一部分。 在第一间隔物的两侧的基板中形成S / D区域。 在S / D区域上形成金属硅化物层。

    SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING SEMICONDUCTOR DEVICE
    6.
    发明申请
    SEMICONDUCTOR DEVICE AND METHOD FOR FABRICATING SEMICONDUCTOR DEVICE 有权
    用于制造半导体器件的半导体器件和方法

    公开(公告)号:US20130221424A1

    公开(公告)日:2013-08-29

    申请号:US13403591

    申请日:2012-02-23

    IPC分类号: H01L29/792 H01L21/336

    摘要: A method for fabricating a semiconductor device is described. A stacked gate dielectric is formed over a substrate, including a first dielectric layer, a second dielectric layer and a third dielectric layer from bottom to top. A conductive layer is formed on the stacked gate dielectric and then patterned to form a gate conductor. The exposed portion of the third and the second dielectric layers are removed with a selective wet cleaning step. S/D extension regions are formed in the substrate with the gate conductor as a mask. A first spacer is formed on the sidewall of the gate conductor and a portion of the first dielectric layer exposed by the first spacer is removed. S/D regions are formed in the substrate at both sides of the first spacer. A metal silicide layer is formed on the S/D regions.

    摘要翻译: 对半导体装置的制造方法进行说明。 堆叠的栅极电介质形成在衬底上,包括从底部到顶部的第一介电层,第二电介质层和第三电介质层。 在堆叠的栅极电介质上形成导电层,然后将其图案化以形成栅极导体。 通过选择性湿式清洗步骤除去第三和第二介电层的暴露部分。 在栅极导体作为掩模的基板中形成S / D延伸区域。 在栅极导体的侧壁上形成第一间隔物,并且去除由第一间隔物露出的第一电介质层的一部分。 在第一间隔物的两侧的基板中形成S / D区域。 在S / D区域上形成金属硅化物层。