NAND memory arrays
    1.
    发明申请
    NAND memory arrays 审中-公开
    NAND存储器阵列

    公开(公告)号:US20070063262A1

    公开(公告)日:2007-03-22

    申请号:US11601095

    申请日:2006-11-17

    IPC分类号: H01L21/336 H01L29/788

    摘要: A NAND memory array has a plurality of rows of memory cells and a plurality of columns of NAND strings of memory cells. Each NAND string is selectively connected to a bit line through a drain select gate of the respective column. Each of the drain select gates has a first dielectric layer formed on a semiconductor substrate of the memory array and a control gate formed on the first dielectric layer. Each of the memory cells of each of the NAND strings has a second dielectric layer formed on the substrate adjacent the first dielectric layer, a floating gate formed on the second dielectric layer, a third dielectric layer formed on the floating gate, and a control gate formed on the third dielectric layer. The first dielectric layer is thicker than the second dielectric layer.

    摘要翻译: NAND存储器阵列具有多行存储器单元和多列存储器单元的NAND串。 每个NAND串通过相应列的漏极选择栅选择性地连接到位线。 每个漏极选择栅极具有形成在存储器阵列的半导体衬底上的第一电介质层和形成在第一介电层上的控制栅极。 每个NAND串的每个存储单元具有形成在与第一介电层相邻的基板上的第二介质层,形成在第二介电层上的浮动栅极,形成在浮置栅极上的第三介电层,以及控制栅极 形成在第三电介质层上。 第一电介质层比第二电介质层厚。

    NAND memory arrays
    2.
    发明申请
    NAND memory arrays 审中-公开
    NAND存储器阵列

    公开(公告)号:US20060258093A1

    公开(公告)日:2006-11-16

    申请号:US11486596

    申请日:2006-07-14

    IPC分类号: H01L21/336

    摘要: A NAND memory array has a first dielectric layer formed on a first portion of a semiconductor substrate and a second dielectric layer formed on a second portion of the semiconductor substrate and adjoining the first dielectric layer. The first dielectric layer is thicker than the second dielectric layer. A first gate stack is formed on the first dielectric layer to form a drain select gate. A string of second gate stacks is formed on the second dielectric layer to form a NAND string of floating-gate memory cells. A first end of the NAND string is coupled in series with the drain select gate. A third gate stack is formed on the second dielectric layer to form a source select gate. A second end of the NAND string is coupled in series with the source select gate.

    摘要翻译: NAND存储器阵列具有形成在半导体衬底的第一部分上的第一电介质层和形成在半导体衬底的第二部分上且与第一电介质层相邻的第二电介质层。 第一电介质层比第二电介质层厚。 在第一电介质层上形成第一栅极叠层以形成漏极选择栅极。 在第二电介质层上形成一串第二栅极叠层,以形成浮栅存储器单元的NAND串。 NAND串的第一端与漏极选择栅极串联耦合。 在第二电介质层上形成第三栅极叠层以形成源选择栅极。 NAND串的第二端与源极选择栅极串联耦合。

    NAND memory arrays and methods
    3.
    发明申请
    NAND memory arrays and methods 有权
    NAND存储器阵列和方法

    公开(公告)号:US20060040447A1

    公开(公告)日:2006-02-23

    申请号:US10920561

    申请日:2004-08-18

    IPC分类号: H01L21/336

    摘要: NAND memory arrays and methods are provided. A plurality of first gate stacks is formed on a first dielectric layer that is formed on a substrate of a NAND memory array. The first dielectric layer and the plurality of first gate stacks formed thereon form a NAND string of memory cells of the memory array. A second gate stack is formed on a second dielectric layer that is formed on the substrate adjacent the first dielectric layer. The second dielectric layer with the second gate stack formed thereon forms a drain select gate adjacent an end of the NAND string. The second dielectric layer is thicker than the first dielectric layer.

    摘要翻译: 提供NAND存储器阵列和方法。 在形成在NAND存储器阵列的衬底上的第一电介质层上形成多个第一栅极叠层。 形成在其上的第一介电层和多个第一栅极堆叠形成存储器阵列的存储器单元的NAND串。 在与第一介电层相邻的基板上形成的第二电介质层上形成第二栅极叠层。 其上形成有第二栅极堆叠的第二介电层形成与NAND串的端部相邻的漏极选择栅极。 第二电介质层比第一电介质层厚。

    NAND memory arrays and methods
    4.
    发明授权
    NAND memory arrays and methods 有权
    NAND存储器阵列和方法

    公开(公告)号:US07276414B2

    公开(公告)日:2007-10-02

    申请号:US10920561

    申请日:2004-08-18

    IPC分类号: H01L21/336

    摘要: NAND memory arrays and methods are provided. A plurality of first gate stacks is formed on a first dielectric layer that is formed on a substrate of a NAND memory array. The first dielectric layer and the plurality of first gate stacks formed thereon form a NAND string of memory cells of the memory array. A second gate stack is formed on a second dielectric layer that is formed on the substrate adjacent the first dielectric layer. The second dielectric layer with the second gate stack formed thereon forms a drain select gate adjacent an end of the NAND string. The second dielectric layer is thicker than the first dielectric layer.

    摘要翻译: 提供NAND存储器阵列和方法。 在形成在NAND存储器阵列的衬底上的第一电介质层上形成多个第一栅极叠层。 形成在其上的第一介电层和多个第一栅极堆叠形成存储器阵列的存储器单元的NAND串。 在与第一介电层相邻的基板上形成的第二电介质层上形成第二栅极叠层。 其上形成有第二栅极堆叠的第二介电层形成与NAND串的端部相邻的漏极选择栅极。 第二电介质层比第一电介质层厚。

    Protection of tunnel dielectric using epitaxial silicon
    5.
    发明授权
    Protection of tunnel dielectric using epitaxial silicon 有权
    使用外延硅保护隧道电介质

    公开(公告)号:US07390710B2

    公开(公告)日:2008-06-24

    申请号:US10932795

    申请日:2004-09-02

    IPC分类号: H01L21/8238

    摘要: Layers of epitaxial silicon are used to protect the tunnel dielectric layer of a floating-gate memory cell from excessive oxidation or removal during the formation of shallow trench isolation (STI) regions. Following trench formation, the layers of epitaxial silicon are grown from silicon-containing layers on opposing sides of the tunnel dielectric layer, thereby permitting their thickness to be limited to approximately one-half of the thickness of the tunnel dielectric layer. The epitaxial silicon may be oxidized prior to filling the trench with a dielectric material or a dielectric fill may occur prior to oxidizing at least the epitaxial silicon covering the ends of the tunnel dielectric layer.

    摘要翻译: 使用外延硅层来保护浮栅存储器单元的隧道介电层免于在形成浅沟槽隔离(STI)区域期间的过度氧化或去除。 在沟槽形成之后,外延硅层从隧道介电层的相对侧上的含硅层生长,从而允许其厚度被限制为隧道介电层的厚度的大约二分之一。 外延硅可以在用电介质材料填充沟槽之前被氧化,或者在氧化至少覆盖隧道介电层的端部的外延硅之前可能发生电介质填充。

    MIS capacitor and method of formation
    8.
    发明申请
    MIS capacitor and method of formation 有权
    MIS电容器和形成方法

    公开(公告)号:US20070138529A1

    公开(公告)日:2007-06-21

    申请号:US11545481

    申请日:2006-10-11

    IPC分类号: H01L29/94

    摘要: An MIS capacitor with low leakage and high capacitance is disclosed. A layer of hemispherical grained polysilicon (HSG) is formed as a lower electrode. Prior to the dielectric formation, the hemispherical grained polysilicon layer may be optionally subjected to a nitridization or anneal process. A dielectric layer of aluminum oxide (Al2O3), or a composite stack of interleaved layers of aluminum oxide and other metal oxide dielectric materials, is fabricated over the hemispherical grained polysilicon layer and after the optional nitridization or anneal process. The dielectric layer of aluminum oxide (Al2O3) or the aluminum oxide composite stack may be optionally subjected to a post-deposition treatment to further increase the capacitance and decrease the leakage current. A metal nitride upper electrode is formed over the dielectric layer or the composite stack by a deposition technique or by atomic layer deposition.

    摘要翻译: 公开了具有低泄漏和高电容的MIS电容器。 形成半球状晶粒多晶硅层(HSG)作为下电极。 在电介质形成之前,半球状晶粒多晶硅层可以任选地进行氮化或退火工艺。 在半球形颗粒上制造氧化铝(Al 2 O 3 3)的介电层或氧化铝和其它金属氧化物电介质材料的交错层的复合叠层 多晶硅层和可选的氮化或退火工艺后。 氧化铝(Al 2 O 3 3)的电介质层或氧化铝复合叠层可以任选地进行后沉积处理以进一步增加电容并减小 漏电流。 通过沉积技术或通过原子层沉积在电介质层或复合叠层上形成金属氮化物上电极。

    Atomic layer deposition method of depositing an oxide on a substrate
    9.
    发明申请
    Atomic layer deposition method of depositing an oxide on a substrate 有权
    在衬底上沉积氧化物的原子层沉积方法

    公开(公告)号:US20060257584A1

    公开(公告)日:2006-11-16

    申请号:US11491383

    申请日:2006-07-20

    IPC分类号: H05H1/24 C23C16/00

    摘要: The invention includes atomic layer deposition methods of depositing an oxide on a substrate. In one implementation, a substrate is positioned within a deposition chamber. A first species is chemisorbed onto the substrate to form a first species monolayer within the deposition chamber from a gaseous precursor. The chemisorbed first species is contacted with remote plasma oxygen derived at least in part from at least one of O2 and O3 and with remote plasma nitrogen effective to react with the first species to form a monolayer comprising an oxide of a component of the first species monolayer. The chemisorbing and the contacting with remote plasma oxygen and with remote plasma nitrogen are successively repeated effective to form porous oxide on the substrate. Other aspects and implementations are contemplated.

    摘要翻译: 本发明包括在衬底上沉积氧化物的原子层沉积方法。 在一个实施方式中,衬底位于沉积室内。 第一种物质被化学吸附到基底上以在气相前体的沉积室内形成第一物质单层。 化学吸附的第一物质与至少部分从O 2和O 3 3中的至少一个导出的远程等离子体氧接触,并且与远程等离子体氮有效地与第一物质反应 物质形成包含第一物质单层的组分的氧化物的单层。 连续重复化学吸附和与远程等离子体氧和远程等离子体氮的接触,以在衬底上形成多孔氧化物。 考虑了其他方面和实现。

    Method of depositing a silicon dioxide-comprising layer in the fabrication of integrated circuitry

    公开(公告)号:US20060183347A1

    公开(公告)日:2006-08-17

    申请号:US11404541

    申请日:2006-04-14

    IPC分类号: H01L21/31

    摘要: This invention includes methods of depositing a silicon dioxide comprising layer in the fabrication of integrated circuitry, and to methods of forming trench isolation in the fabrication of integrated circuitry. In one implementation, a method of depositing a silicon dioxide comprising layer in the fabrication of integrated circuitry includes flowing an aluminum containing organic precursor to a chamber containing a semiconductor substrate effective to deposit an aluminum comprising layer over the substrate. An alkoxysilanol is flowed to the substrate comprising the aluminum comprising layer within the chamber effective to deposit a silicon dioxide comprising layer over the substrate. At least one halogen is provided within the chamber during at least one of the aluminum containing organic precursor flowing and the alkoxysilanol flowing under conditions effective to reduce rate of the deposit of the silicon dioxide comprising layer over the substrate than would otherwise occur under identical conditions but for providing the halogen. Other implementations are contemplated.