SONOS memory cells having non-uniform tunnel oxide and methods for fabricating same
    33.
    发明授权
    SONOS memory cells having non-uniform tunnel oxide and methods for fabricating same 有权
    具有不均匀隧道氧化物的SONOS存储单元及其制造方法

    公开(公告)号:US08487373B2

    公开(公告)日:2013-07-16

    申请号:US12432441

    申请日:2009-04-29

    IPC分类号: H01L21/331

    摘要: Methods for forming a memory cell are disclosed. A method includes forming a source-drain structure in a semiconductor substrate where the source-drain structure includes a rounded top surface and sidewall surfaces. An oxide layer is formed on the top and sidewall surfaces of the source-drain structure. The thickness of the portion of the oxide layer that is formed on the top surface of the source-drain structure is greater than the thickness of the portion of the oxide layer that is formed on the sidewall surfaces of the source-drain structure.

    摘要翻译: 公开了形成存储单元的方法。 一种方法包括在半导体衬底中形成源极 - 漏极结构,其中源极 - 漏极结构包括圆顶顶表面和侧壁表面。 在源极 - 漏极结构的顶壁和侧壁表面上形成氧化物层。 形成在源极 - 漏极结构的顶表面上的氧化物层的部分的厚度大于在源极 - 漏极结构的侧壁表面上形成的氧化物层的部分的厚度。

    Self-aligned NAND flash select-gate wordlines for spacer double patterning
    34.
    发明授权
    Self-aligned NAND flash select-gate wordlines for spacer double patterning 有权
    自对准NAND闪存选择栅字线用于间隔双重图案化

    公开(公告)号:US08461053B2

    公开(公告)日:2013-06-11

    申请号:US12971818

    申请日:2010-12-17

    IPC分类号: H01L21/302

    摘要: A method for double patterning is disclosed. In one embodiment the formation a pair of select gate wordlines on either side of a plurality of core wordlines begins by placing a spacer pattern around edges of a photoresist pattern is disclosed. The photoresist pattern is stripped away leaving the spacer pattern. A trim mask is placed over a portion of the spacer pattern. Portions of the spacer pattern are etched away that are not covered by the trim mask. The trim mask is removed, wherein first remaining portions of the spacer pattern define a plurality of core wordlines. A pad mask is placed such that the pad mask and second remaining portions of the spacer pattern define a select gate wordline on either side of the plurality of core wordlines. Finally at least one pattern transfer layer is etched through using the mad mask and the first and second remaining portions of the spacer pattern to etch the select gate wordlines and the plurality of core wordlines into a poly silicon layer.

    摘要翻译: 公开了一种用于双重图案化的方法。 在一个实施例中,通过在光致抗蚀剂图案的边缘周围放置间隔图案来开始在多个核心字线的任一侧上形成一对选择栅极字线。 将光致抗蚀剂图案剥离留下间隔图案。 修剪掩模放置在间隔图案的一部分上。 间隔图案的部分被蚀刻掉,不被修剪掩模覆盖。 去除修剪掩模,其中间隔图案的第一剩余部分限定多个核心字线。 放置焊盘掩模,使得焊盘掩模和间隔物图案的第二剩余部分在多个核心字线的任一侧上限定选择栅极字线。 最后,通过使用激光掩模和间隔物图案的第一和第二剩余部分来蚀刻至少一个图案转印层,以将选择栅极字线和多个核心字线蚀刻成多晶硅层。

    Memory device peripheral interconnects
    35.
    发明授权
    Memory device peripheral interconnects 有权
    存储器件外设互连

    公开(公告)号:US08441041B2

    公开(公告)日:2013-05-14

    申请号:US12943679

    申请日:2010-11-10

    IPC分类号: H01L23/48

    摘要: An integrated circuit memory device, in one embodiment, includes a substrate and first and second inter-level dielectric layers successively disposed on the substrate. One or more contacts in the peripheral extend through the first inter-level dielectric layer to respective components. One or more vias and a plurality of dummy vias extend through the second inter-level dielectric layer in the peripheral area. Each of the one or more peripheral vias extend to a respective peripheral contact. The peripheral dummy vias are located proximate the peripheral vias.

    摘要翻译: 在一个实施例中,集成电路存储器件包括衬底和连续地设置在衬底上的第一和第二级间介电层。 外围设备中的一个或多个触点延伸穿过第一层间电介质层到相应的部件。 一个或多个通孔和多个虚拟通孔延伸穿过周边区域中的第二层间电介质层。 一个或多个外围通孔中的每一个延伸到相应的外围触点。 外围的虚拟通孔位于外围通孔附近。

    Flash memory cell with a flair gate
    36.
    发明授权
    Flash memory cell with a flair gate 有权
    闪存单元,带有风格门

    公开(公告)号:US08367537B2

    公开(公告)日:2013-02-05

    申请号:US11801823

    申请日:2007-05-10

    IPC分类号: H01L21/283

    摘要: An embodiment of the present invention is directed to a method of forming a memory cell. The method includes etching a trench in a substrate and filling the trench with an oxide to form a shallow trench isolation (STI) region. A portion of an active region of the substrate that comes in contact with the STI region forms a bitline-STI edge. The method further includes forming a gate structure over the active region of the substrate and over the STI region. The gate structure has a first width substantially over the center of the active region of the substrate and a second width substantially over the bitline-STI edge, and the second width is greater than the first width.

    摘要翻译: 本发明的实施例涉及一种形成存储单元的方法。 该方法包括蚀刻衬底中的沟槽并用氧化物填充沟槽以形成浅沟槽隔离(STI)区域。 与STI区域接触的衬底的有源区域的一部分形成位线STI边缘。 该方法还包括在衬底的有源区上方和STI区上形成栅极结构。 栅极结构具有基本上在衬底的有源区域的中心上方的第一宽度和基本上位于STI边缘的第二宽度,并且第二宽度大于第一宽度。

    Apparatus and method for extended nitride layer in a flash memory
    37.
    发明授权
    Apparatus and method for extended nitride layer in a flash memory 有权
    闪存中的延伸氮化物层的装置和方法

    公开(公告)号:US08208296B2

    公开(公告)日:2012-06-26

    申请号:US12706710

    申请日:2010-02-16

    IPC分类号: G11C11/34

    摘要: A method and apparatus for storing information is provided. A core region of memory includes a semiconductor layer, at least one shallow trench, an insulator, and a charge-trapping layer. The semiconductor layer includes at least one source/drain region, and the insulator disposed above the source/drain region. The charge trapping layer is within the insulator, and the charge trapping layer is above the entire width of the source/drain region, and extends at least one angstrom beyond the width of the source/drain region, so that a portion the charge trapping layer extends into at least one shallow trench.

    摘要翻译: 提供了一种用于存储信息的方法和装置。 存储器的核心区域包括半导体层,至少一个浅沟槽,绝缘体和电荷俘获层。 半导体层包括至少一个源极/漏极区域,以及设置在源极/漏极区域上方的绝缘体。 电荷捕获层在绝缘体内,并且电荷捕获层高于源/漏区的整个宽度,并且延伸超过源极/漏极区的宽度至少一埃,使得电荷捕获层 延伸到至少一个浅沟槽中。

    SPLIT CHARGE STORAGE NODE INNER SPACER PROCESS
    40.
    发明申请
    SPLIT CHARGE STORAGE NODE INNER SPACER PROCESS 有权
    分离式充电储存装置内部空间过程

    公开(公告)号:US20090101963A1

    公开(公告)日:2009-04-23

    申请号:US11873822

    申请日:2007-10-17

    IPC分类号: H01L29/792 H01L21/336

    摘要: Methods of forming a memory cell containing two split sub-lithographic charge storage nodes on a semiconductor substrate are provided. The methods can involve forming two split sub-lithographic charge storage nodes by using spacer formation techniques. By removing exposed portions of a first poly layer while leaving portions of the first poly layer protected by the spacers, the method can provide two split sub-lithographic first poly gates. Further, by removing exposed portions of a charge storage layer while leaving portions of the charge storage layer protected by the two split sub-lithographic first poly gates, the method can provide two split, narrow portions of the charge storage layer, which subsequently form two split sub-lithographic charge storage nodes.

    摘要翻译: 提供了在半导体衬底上形成包含两个分开的次光刻电荷存储节点的存储单元的方法。 这些方法可以包括通过使用间隔物形成技术形成两个分裂的亚光刻电荷存储节点。 通过去除第一多晶硅层的暴露部分,同时留下被间隔物保护的第一多晶硅层的部分,该方法可以提供两个分裂的次光刻的第一多晶硅栅极。 此外,通过去除电荷存储层的暴露部分,同时保留由两个分割子光刻第一多晶硅栅极保护的电荷存储层的部分,该方法可以提供电荷存储层的两个分开的窄部分,其随后形成两个 拆分次光刻电荷存储节点。