Non-volatile memory device and method of manufacturing the same
    43.
    发明申请
    Non-volatile memory device and method of manufacturing the same 审中-公开
    非易失性存储器件及其制造方法

    公开(公告)号:US20100072536A1

    公开(公告)日:2010-03-25

    申请号:US12591109

    申请日:2009-11-09

    CPC classification number: H01L29/792 H01L29/40117 H01L29/4234 H01L29/513

    Abstract: In a non-volatile memory device and a method of manufacturing the non-volatile memory device, a tunnel insulating layer, a charge trapping layer, a dielectric layer and a conductive layer may be sequentially formed on a channel region of a substrate. The conductive layer may be patterned to form a gate electrode and spacers may be formed on sidewalls of the gate electrode. A dielectric layer pattern, a charge trapping layer pattern, and a tunnel insulating layer pattern may be formed on the channel region by an anisotropic etching process using the spacers as an etch mask. Sidewalls of the charge trapping layer pattern may be removed by an isotropic etching process to reduce the width thereof. Thus, the likelihood of lateral diffusion of electrons may be reduced or prevented in the charge trapping layer pattern and high temperature stress characteristics of the non-volatile memory device may be improved.

    Abstract translation: 在非易失性存储器件和制造非易失性存储器件的方法中,隧道绝缘层,电荷俘获层,电介质层和导电层可以顺序形成在衬底的沟道区上。 可以将导电层图案化以形成栅电极,并且可以在栅电极的侧壁上形成间隔物。 可以通过使用间隔物作为蚀刻掩模的各向异性蚀刻工艺在沟道区上形成电介质层图案,电荷俘获层图案和隧道绝缘层图案。 可以通过各向同性蚀刻工艺去除电荷俘获层图案的侧壁以减小其宽度。 因此,电荷捕获层图案中电子的横向扩散的可能性可能会降低或被抑制,并且可以提高非易失性存储器件的高温应力特性。

    Non-volatile memory device and method of manufacturing the same
    44.
    发明授权
    Non-volatile memory device and method of manufacturing the same 失效
    非易失性存储器件及其制造方法

    公开(公告)号:US07635633B2

    公开(公告)日:2009-12-22

    申请号:US11898039

    申请日:2007-09-07

    CPC classification number: H01L21/28282 H01L29/4234 H01L29/513 H01L29/792

    Abstract: In a non-volatile memory device and a method of manufacturing the non-volatile memory device, a tunnel insulating layer, a charge trapping layer, a dielectric layer and a conductive layer may be sequentially formed on a channel region of a substrate. The conductive layer may be patterned to form a gate electrode and spacers may be formed on sidewalls of the gate electrode. A dielectric layer pattern, a charge trapping layer pattern, and a tunnel insulating layer pattern may be formed on the channel region by an anisotropic etching process using the spacers as an etch mask. Sidewalls of the charge trapping layer pattern may be removed by an isotropic etching process to reduce the width thereof. Thus, the likelihood of lateral diffusion of electrons may be reduced or prevented in the charge trapping layer pattern and high temperature stress characteristics of the non-volatile memory device may be improved.

    Abstract translation: 在非易失性存储器件和制造非易失性存储器件的方法中,隧道绝缘层,电荷俘获层,电介质层和导电层可以顺序形成在衬底的沟道区上。 可以将导电层图案化以形成栅电极,并且可以在栅电极的侧壁上形成间隔物。 可以通过使用间隔物作为蚀刻掩模的各向异性蚀刻工艺在沟道区上形成电介质层图案,电荷俘获层图案和隧道绝缘层图案。 可以通过各向同性蚀刻工艺去除电荷俘获层图案的侧壁以减小其宽度。 因此,电荷捕获层图案中电子的横向扩散的可能性可能会降低或被抑制,并且可以提高非易失性存储器件的高温应力特性。

    Method of manufacturing non-volatile memory device
    45.
    发明授权
    Method of manufacturing non-volatile memory device 有权
    制造非易失性存储器件的方法

    公开(公告)号:US07605067B2

    公开(公告)日:2009-10-20

    申请号:US11859618

    申请日:2007-09-21

    CPC classification number: H01L27/115 H01L27/11521

    Abstract: A method of manufacturing a non-volatile memory device includes forming a tunnel insulating layer on a substrate, forming a conductive pattern on the tunnel insulating layer, forming a lower dielectric layer on the conductive pattern, performing a first heat treatment process to density the lower dielectric layer, and forming a middle dielectric layer having an energy band gap smaller than that of the lower dielectric layer on the first heat-treated lower dielectric layer. The method further includes forming an upper dielectric layer including a material substantially identical to that of the lower dielectric layer on the middle dielectric layer, performing a second heat treatment process to densify the middle dielectric layer and the upper dielectric layer and forming a conductive layer on the second heat-treated upper dielectric layer.

    Abstract translation: 一种制造非易失性存储器件的方法包括在衬底上形成隧道绝缘层,在隧道绝缘层上形成导电图案,在导电图案上形成下介电层,执行第一热处理工艺以密度较低 并且形成具有比第一经热处理的下电介质层上的下介电层的能带隙小的能带隙的中间电介质层。 该方法还包括形成上介电层,其包括与中间介电层上的下电介质层的材料基本相同的材料,执行第二热处理工艺以使中介电层和上电介质层致密并形成导电层 第二热处理的上介电层。

    Method of fabricating a nonvolatile memory device
    46.
    发明申请
    Method of fabricating a nonvolatile memory device 有权
    制造非易失性存储器件的方法

    公开(公告)号:US20080096349A1

    公开(公告)日:2008-04-24

    申请号:US11605452

    申请日:2006-11-29

    Abstract: A method of fabricating a nonvolatile memory device includes forming a charge tunneling layer on a semiconductor substrate, forming a charge trapping layer on the charge tunneling layer, forming a first charge blocking layer on the charge trapping layer by supplying a metal source gas and a first oxidizing gas onto the charge trapping layer, forming a second charge blocking layer on the first charge blocking layer by supplying a metal source gas and a second oxidizing gas onto the first charge blocking layer, wherein the second oxidizing gas has a higher oxidizing power as compared to the first oxidizing gas, and forming a gate electrode layer on the second charge blocking layer.

    Abstract translation: 一种制造非易失性存储器件的方法包括:在半导体衬底上形成电荷隧穿层,在电荷隧道层上形成电荷俘获层,在电荷俘获层上形成第一电荷阻挡层,通过提供金属源气体和第一 在电荷捕获层上氧化气体,通过在第一电荷阻挡层上提供金属源气体和第二氧化气体,在第一电荷阻挡层上形成第二电荷阻挡层,其中第二氧化气体具有较高的氧化能力, 并且在第二电荷阻挡层上形成栅极电极层。

Patent Agency Ranking