High K stack for non-volatile memory
    34.
    发明授权
    High K stack for non-volatile memory 有权
    高K堆栈用于非易失性存储器

    公开(公告)号:US07855114B2

    公开(公告)日:2010-12-21

    申请号:US12351553

    申请日:2009-01-09

    IPC分类号: H01L21/336 H01L29/778

    摘要: A memory device may include a source region and a drain region formed in a substrate and a channel region formed in the substrate between the source and drain regions. The memory device may further include a first oxide layer formed over the channel region, the first oxide layer having a first dielectric constant, and a charge storage layer formed upon the first oxide layer. The memory device may further include a second oxide layer formed upon the charge storage layer, a layer of dielectric material formed upon the second oxide layer, the dielectric material having a second dielectric constant that is greater than the first dielectric constant, and a gate electrode formed upon the layer of dielectric material.

    摘要翻译: 存储器件可以包括形成在衬底中的源极区域和漏极区域以及形成在源极和漏极区域之间的衬底中的沟道区域。 存储器件还可以包括形成在沟道区上的第一氧化物层,第一氧化物层具有第一介电常数,以及形成在第一氧化物层上的电荷存储层。 存储器件还可以包括形成在电荷存储层上的第二氧化物层,形成在第二氧化物层上的介电材料层,介电材料具有大于第一介电常数的第二介电常数,以及栅电极 形成在电介质材料层上。

    Method for determining wordline critical dimension in a memory array and related structure
    36.
    发明授权
    Method for determining wordline critical dimension in a memory array and related structure 有权
    用于确定存储器阵列和相关结构中的字线临界尺寸的方法

    公开(公告)号:US07339222B1

    公开(公告)日:2008-03-04

    申请号:US11416551

    申请日:2006-05-03

    IPC分类号: H01L27/108

    摘要: According to one exemplary embodiment, a method for fabricating a memory array includes forming a number of trenches in a substrate, where the trenches determine a number of wordline regions in the substrate, where each of the wordline regions is situated between two adjacent trenches, and where each of the wordline regions have a wordline region width. The memory array can be a flash memory array. The method further includes forming a number of bitlines in the substrate, where the bitlines are situated perpendicular to the trenches. The method further includes forming a dielectric region in each of the trenches. The method further includes forming a dielectric stack over the bitlines, wordline regions, and trenches. The method further includes forming a number of wordlines, where each wordline is situated over one of the wordline regions. The wordline region width determines an active wordline width of each of the wordlines.

    摘要翻译: 根据一个示例性实施例,一种用于制造存储器阵列的方法包括在衬底中形成多个沟槽,其中沟槽确定衬底中的多个字线区域,其中每个字线区域位于两个相邻的沟槽之间,以及 其中每个字线区域具有字线区域宽度。 存储器阵列可以是闪存阵列。 该方法还包括在衬底中形成多个位线,其中位线垂直于沟槽定位。 该方法还包括在每个沟槽中形成电介质区域。 该方法还包括在位线,字线区域和沟槽之间形成电介质叠层。 该方法还包括形成多个字线,其中每个字线位于一个字线区域上。 字线区域宽度决定每个字线的有效字线宽度。