Integrating a DRAM with an SRAM having butted contacts and resulting devices
    1.
    发明申请
    Integrating a DRAM with an SRAM having butted contacts and resulting devices 审中-公开
    将DRAM与具有对接触点和所产生的器件的SRAM集成

    公开(公告)号:US20080116496A1

    公开(公告)日:2008-05-22

    申请号:US11809642

    申请日:2007-06-01

    IPC分类号: H01L27/108

    摘要: A novel SOC structure and method of making the same are provided. An SOC comprises a logic region, an SRRM and a DRAM region. The storage capacitor in a DRAM cell is formed in the first dielectric layer in an MIM (metal-insulator-metal) configuration, having a large vertical surface area. A butted contact, formed in said first dielectric layer, comprises a bottom portion abutting a first and second conductive region in an SRAM cell, and a vertically aligned top portion coupled to a first metal layer. The top portion has a substantially larger depth than that of the bottom portion, while substantially smaller in size. Forming this SOC structure does not require adding complex, error-prone additional processing steps on an existing CMOS manufacturing process, thus having little impact on the overall SOC product yield.

    摘要翻译: 提供了一种新颖的SOC结构及其制造方法。 SOC包括逻辑区域,SRRM和DRAM区域。 金属 - 绝缘体 - 金属)构造中的DRAM单元中的存储电容器形成在第一介电层中,具有大的垂直表面积。 形成在所述第一电介质层中的对接触点包括邻接SRAM单元中的第一和第二导电区域的底部以及耦合到第一金属层的垂直对齐的顶部。 顶部具有比底部大的深度大得多的深度,而其尺寸基本上更小。 形成这种SOC结构不需要在现有的CMOS制造工艺上增加复杂的,容易出错的附加处理步骤,因此对整个SOC产品产量几乎没有影响。

    Method of Forming an Embedded Memory Device
    3.
    发明申请
    Method of Forming an Embedded Memory Device 有权
    形成嵌入式存储器件的方法

    公开(公告)号:US20140035020A1

    公开(公告)日:2014-02-06

    申请号:US13566710

    申请日:2012-08-03

    IPC分类号: H01L29/788 H01L21/336

    摘要: The present disclosure describes a method of forming a memory device. The method includes receiving a wafer substrate, forming a poly stack pattern on the wafer substrate, performing an ion implantation process to form a source and a drain in the wafer substrate, forming a memory gate and a control gate in the defined poly stack pattern, and forming a control gate in the control poly stack pattern. Forming the memory gate further includes performing a memory gate recess to bury the memory gate in an oxide layer.

    摘要翻译: 本公开描述了形成存储器件的方法。 该方法包括接收晶片衬底,在晶片衬底上形成多晶堆叠图案,执行离子注入工艺以在晶片衬底中形成源极和漏极,在限定的多晶堆叠图案中形成存储栅极和控制栅极, 以及在所述控制多晶堆叠图案中形成控制栅极。 形成存储器栅极还包括执行存储器栅极凹槽以将存储栅极埋入氧化物层中。

    Dual poly layer and method of manufacture
    4.
    发明授权
    Dual poly layer and method of manufacture 有权
    双层多层及其制造方法

    公开(公告)号:US07208369B2

    公开(公告)日:2007-04-24

    申请号:US10662609

    申请日:2003-09-15

    IPC分类号: H01L21/8242

    摘要: Semiconductor devices having a dual polysilicon electrode and a method of manufacturing are provided. The semiconductor devices include a first polysilicon layer deposited on a second polysilicon layer. Each polysilicon layer may be doped individually. The method also allows for some semiconductor devices on a wafer to have a single polysilicon wafer and other devices to have a dual polysilicon layer. In one embodiment, the semiconductor devices are utilized to form a memory device wherein the storage capacitors and transistors located in the cell region are formed with a dual polysilicon layer and devices in the periphery region are formed with a single polysilicon layer.

    摘要翻译: 提供了具有双重多晶硅电极的半导体器件和制造方法。 半导体器件包括沉积在第二多晶硅层上的第一多晶硅层。 每个多晶硅层可以单独掺杂。 该方法还允许晶片上的一些半导体器件具有单个多晶硅晶片和其它器件以具有双重多晶硅层。 在一个实施例中,半导体器件用于形成存储器件,其中位于单元区域中的存储电容器和晶体管形成双重多晶硅层,并且外围区域中的器件形成有单个多晶硅层。

    Method of forming shallow trench isolation with rounded corners and divot-free by using in-situ formed spacers
    5.
    发明授权
    Method of forming shallow trench isolation with rounded corners and divot-free by using in-situ formed spacers 有权
    通过使用原位形成的间隔物形成具有圆角的浅沟槽隔离和无凹槽的方法

    公开(公告)号:US06670279B1

    公开(公告)日:2003-12-30

    申请号:US10068055

    申请日:2002-02-05

    IPC分类号: H01L2100

    CPC分类号: H01L21/76235

    摘要: A method of fabricating an STI structure comprising the following steps. A silicon structure having a pad oxide layer formed thereover is provided. A hard mask layer is formed over the pad oxide layer. The hard mask layer and the pad oxide layer are patterned to form an opening exposing a portion of the silicon structure. The opening having exposed side walls. A spacer layer is formed over the patterned hard mask layer, the exposed side walls of the opening and lining the opening. The structure is subjected to an STI trench etching process to: (1) remove the spacer layer from over the patterned hard mask layer; form spacers over the side walls; (2) the spacers being formed in-situ from the spacer layer; and (3) etch an STI trench within the silicon structure wherein the spacers serve as masks during at least a portion of time in which the STI trench is formed. The STI trench having corners. Any remaining portion of the spacers are removed. A liner oxide is formed at least within the STI trench whereby the liner oxide has rounded corners proximate the STI trench corners. An STI fill layer is formed over the patterned hard mask layer and filling the liner oxide lined STI trench. The STI fill layer is planarized, stopping on the patterned hard mask layer. The patterned hard mask layer and the patterned pad oxide layer are removed to form a divot-free STI structure having rounded corners.

    摘要翻译: 一种制造STI结构的方法,包括以下步骤。 提供了具有形成在其上的衬垫氧化物层的硅结构。 在衬垫氧化物层上形成硬掩模层。 将硬掩模层和焊盘氧化物层图案化以形成露出硅结构的一部分的开口。 开口具有暴露的侧壁。 在图案化的硬掩模层,开口的暴露的侧壁和衬里的开口上形成间隔层。 对该结构进行STI沟槽蚀刻处理,以:(1)从图案化的硬掩模层上方去除间隔层; 在侧壁上形成间隔物; (2)间隔物从间隔层原位形成; 和(3)蚀刻硅结构内的STI沟槽,其中在形成STI沟槽的至少一部分时间中,间隔物用作掩模。 STI沟槽有角。 去除间隔物的任何剩余部分。 至少在STI沟槽内形成衬垫氧化物,由此衬垫氧化物在STI沟槽角附近具有圆角。 在图案化的硬掩模层上形成STI填充层,并填充衬里氧化物衬里的STI沟槽。 STI填充层被平坦化,停止在图案化的硬掩模层上。 图案化的硬掩模层和图案化的衬垫氧化物层被去除以形成具有圆角的无纹隙的STI结构。

    Method of forming an embedded memory device
    6.
    发明授权
    Method of forming an embedded memory device 有权
    形成嵌入式存储器件的方法

    公开(公告)号:US09082705B2

    公开(公告)日:2015-07-14

    申请号:US13566710

    申请日:2012-08-03

    摘要: The present disclosure describes a method of forming a memory device. The method includes receiving a wafer substrate, forming a poly stack pattern on the wafer substrate, performing an ion implantation process to form a source and a drain in the wafer substrate, forming a memory gate and a control gate in the defined poly stack pattern, and forming a control gate in the control poly stack pattern. Forming the memory gate further includes performing a memory gate recess to bury the memory gate in an oxide layer.

    摘要翻译: 本公开描述了形成存储器件的方法。 该方法包括接收晶片衬底,在晶片衬底上形成多晶堆叠图案,执行离子注入工艺以在晶片衬底中形成源极和漏极,在限定的多晶堆叠图案中形成存储栅极和控制栅极, 以及在所述控制多晶堆叠图案中形成控制栅极。 形成存储器栅极还包括执行存储器栅极凹槽以将存储栅极埋入氧化物层中。

    Method of fabricating a DRAM device featuring alternate fin type capacitor structures
    9.
    发明授权
    Method of fabricating a DRAM device featuring alternate fin type capacitor structures 有权
    制造具有交替鳍式电容器结构的DRAM器件的方法

    公开(公告)号:US06624018B1

    公开(公告)日:2003-09-23

    申请号:US09839965

    申请日:2001-04-23

    IPC分类号: H01L218242

    摘要: A process for fabricating an alternate fin type capacitor structure, used to increase capacitor surface area has been developed. The process features the formation of fin shaped, storage node structures, located in fin type capacitor openings, which are in turn defined in a group of composite insulator layers. A first fin type capacitor opening is formed by selectively creating lateral recesses in first type insulator layers, exposed in a first capacitor opening in the composite insulator layers, while an adjacent, second fin type capacitor opening is formed by selectively creating lateral recesses in second type insulator components, exposed in a second capacitor opening located in the same composite insulator layers. Portions of the lateral recesses in the first and second fin type capacitor openings overlay, allowing intertwined or alternate, storage node structures to be realized, thus reducing the space needed for the capacitor structure. The horizontal features of the fin shaped storage node structure, located in the lateral recesses, result in increased capacitor surface area when compared to counterparts fabricated without the lateral recess component.

    摘要翻译: 已经开发了用于制造用于增加电容器表面积的替代鳍式电容器结构的工艺。 该方法的特征在于形成翅片形状的存储节点结构,其位于翅片式电容器开口中,其又限定在一组复合绝缘体层中。 第一鳍型电容器开口通过选择性地产生在第一类型绝缘体层中形成的横向凹槽而形成,暴露在复合绝缘体层中的第一电容器开口中,而相邻的第二鳍状电容器开口通过选择性地产生第二类型的横向凹槽而形成 绝缘体部件,暴露在位于同一复合绝缘体层中的第二电容器开口中。 第一和第二鳍式电容器开口中的横向凹部的部分覆盖,允许实现相互缠绕或交替的存储节点结构,从而减少电容器结构所需的空间。 与没有横向凹槽部件的制造商相比,位于横向凹槽中的翅片形储存结构的水平特征导致增加的电容器表面积。

    Method for forming a self aligned capping layer
    10.
    发明授权
    Method for forming a self aligned capping layer 有权
    形成自对准覆盖层的方法

    公开(公告)号:US06566250B1

    公开(公告)日:2003-05-20

    申请号:US10100429

    申请日:2002-03-18

    IPC分类号: H01L214763

    摘要: A method for forming a self-aligned capping layer over a metal filled feature in a multi-layer semiconductor device including providing an anisotropically etched feature included in a substrate; blanket depositing a first barrier layer over the anisotropically etched feature to prevent diffusion of a metal species into the substrate; filling the anisotropically etched feature with a metal to form a metal filled feature substantially filled with metal; planarizing the substrate surface to include forming an exposed surface of the metal filled feature; and, selectively depositing a second barrier layer to cover the exposed surface of the metal filled feature to form a capping layer.

    摘要翻译: 一种用于在多层半导体器件中的金属填充特征上形成自对准覆盖层的方法,包括提供包括在衬底中的各向异性蚀刻特征; 在各向异性蚀刻的特征上毯覆盖沉积第一阻挡层以防止金属物质扩散到基底中; 用金属填充各向异性蚀刻的特征以形成充满金属的金属填充特征; 平面化基底表面以包括形成填充金属的特征的暴露表面; 以及选择性地沉积第二阻挡层以覆盖所述金属填充特征的暴露表面以形成覆盖层。