Method of using carbon spacers for critical dimension (CD) reduction
    2.
    发明授权
    Method of using carbon spacers for critical dimension (CD) reduction 失效
    使用碳间隔物进行临界尺寸(CD)还原的方法

    公开(公告)号:US07169711B1

    公开(公告)日:2007-01-30

    申请号:US10170984

    申请日:2002-06-13

    IPC分类号: H01L21/302

    CPC分类号: H01L21/3086 H01L21/0337

    摘要: A method of using carbon spacers for critical dimension reduction can include providing a patterned photoresist layer above a substrate where the patterned photoresist layer has an aperture with a first width, depositing a carbon film over the photoresist layer and etching the deposited carbon film to form spacers on lateral side walls of the aperture of the patterned photoresist layer, etching the substrate using the formed spacers and patterned photoresist layer as a pattern to form a trench having a second width, and removing the patterned photoresist layer and formed spacers using an oxidizing etch.

    摘要翻译: 使用碳间隔物进行临界尺寸减小的方法可以包括在基底上提供图案化的光致抗蚀剂层,其中图案化的光致抗蚀剂层具有第一宽度的孔,在光致抗蚀剂层上沉积碳膜并蚀刻沉积的碳膜以形成间隔物 在图案化光致抗蚀剂层的孔的侧壁上,使用所形成的间隔物和图案化的光致抗蚀剂层作为图案蚀刻衬底,以形成具有第二宽度的沟槽,并使用氧化蚀刻去除图案化的光致抗蚀剂层和形成的间隔物。

    Negative resist or dry develop process for forming middle of line implant layer
    4.
    发明授权
    Negative resist or dry develop process for forming middle of line implant layer 有权
    用于形成线植入层中间的负阻抗或干式显影工艺

    公开(公告)号:US07112489B1

    公开(公告)日:2006-09-26

    申请号:US11004691

    申请日:2004-12-03

    IPC分类号: H01L21/336 H01L21/8238

    摘要: A method of implanting a middle of line (MOL) implant layer of a flash memory device that does not require a descumming step is disclosed. In a first embodiment, the method includes depositing a negative tone resist over the MOL implant layer. Portions of the negative tone resist in and above a plurality of trenches are not exposed to optical radiation, while portions surrounding the plurality of trenches are exposed. The unexposed portions are developed out thereby leaving a bottom surface of each trench substantially free of a resist residue. Implants can be placed in the MOL implant layer without the need for a descumming step. In a second embodiment, a bi-layer resist is deposited on the MOL implant layer, wherein the bi-layer resist includes a silicon containing top layer and a bottom layer. The bi-layer resist is patterned to expose a portion of the bottom layer that resides in and above a plurality of trenches. The bottom layer is dry etch developed using oxygen plasma as the etchant, thereby leaving a bottom surface of each trench substantially free of a resist residue. Implants can be placed in the MOL implant layer without the need for a descumming step.

    摘要翻译: 公开了一种注入不需要除尘步骤的闪速存储器件的中间线(MOL)注入层的方法。 在第一实施例中,该方法包括在MOL植入层上沉积负色调抗蚀剂。 在多个沟槽中和上方的负色调抗蚀剂的部分不暴露于光辐射,而围绕多个沟槽的部分被暴露。 未曝光部分显影出来,从而留下每个沟槽的底表面基本上没有抗蚀剂残留物。 植入物可以放置在MOL植入层中,而不需要除去步骤。 在第二实施例中,双层抗蚀剂沉积在MOL注入层上,其中双层抗蚀剂包括含硅顶层和底层。 图案化双层抗蚀剂以暴露驻留在多个沟槽中和上方的底层的一部分。 底层是使用氧等离子体作为蚀刻剂进行干法蚀刻,从而留下每个沟槽的底表面基本上没有抗蚀剂残留物。 植入物可以放置在MOL植入层中,而不需要除去步骤。

    Patterning for elongated VSS contact flash memory
    5.
    发明授权
    Patterning for elongated VSS contact flash memory 有权
    扩展VSS接触闪存的图案化

    公开(公告)号:US07018922B1

    公开(公告)日:2006-03-28

    申请号:US10968713

    申请日:2004-10-19

    IPC分类号: H01L21/4763

    摘要: A method of forming a contact in a flash memory device is disclosed. The method increases the depth of focus margin and the overlay margin between the contact and the stacked gate layers. A plurality of stacked gate layers are formed on a semiconductor substrate, wherein each stacked gate layer extends in a predefined direction and is substantially parallel to other stacked gate layers. An interlayer insulating layer is deposited over the plurality of stacked gate layers, and a contact hole is patterned between a first stacked gate layer of the plurality of stacked gate layers and a second stacked gate layer of the plurality of stacked gate layers. The contact hole is formed in an elongated shape, wherein a major axis of the contact hole is substantially parallel to the stacked gate layers. A conductive layer is deposited in the contact hole and excess conductive material is removed.

    摘要翻译: 公开了一种在闪速存储器件中形成触点的方法。 该方法增加了接触和层叠栅极层之间的焦距裕度和覆盖边缘的深度。 在半导体衬底上形成多个层叠的栅极层,其中每个堆叠的栅极层沿预定的方向延伸并且基本上平行于其它堆叠的栅极层。 层叠绝缘层沉积在多个堆叠的栅极层上,并且在多个堆叠的栅极层的第一堆叠的栅极层和多个堆叠的栅极层的第二叠层栅极层之间形成接触孔。 接触孔形成为细长形状,其中接触孔的长轴基本上平行于堆叠的栅极层。 导电层沉积在接触孔中,去除过量的导电材料。

    Model based metal overetch control
    7.
    发明授权
    Model based metal overetch control 有权
    基于型号的金属防腐控制

    公开(公告)号:US06808591B1

    公开(公告)日:2004-10-26

    申请号:US10021531

    申请日:2001-12-12

    IPC分类号: H01L21302

    CPC分类号: H01L21/67253 H01L21/32136

    摘要: A systems and methodologies are provided for metal overetch control. Metal overetch processes are controlled by utilizing overetch device models to determine overetch times or overetch endpoints. The systems and methodologies reduce the need for manual testing and manual overetch characterization. An overetch system includes a metal etcher, a target device and an overetch controller. The target device is located in or on the metal etcher. The overetch controller is coupled to the metal etcher. The overetch controller controls overetching of the target device by the metal etcher. The overetch controller includes an overetch time controller, a set of etch control models and a control system.

    摘要翻译: 提供了用于金属过程控制的系统和方法。 通过利用过滤设备模型来确定金属过蚀刻过程以确定过蚀刻时间或过程延伸端点。 系统和方法减少了手动测试和手动过程表征的需要。 一种过蚀系统包括金属蚀刻机,目标装置和过程控制器。 目标设备位于金属蚀刻机中或其上。 该过程控制器耦合到金属蚀刻器。 过程控制器通过金属蚀刻器控制目标器件的过蚀刻。 该过程控制器包括一个过时延时间控制器,一组蚀刻控制模型和一个控制系统。

    Process for etching an organic dielectric using a silyated photoresist mask
    10.
    发明授权
    Process for etching an organic dielectric using a silyated photoresist mask 有权
    使用硅化光致抗蚀剂掩模蚀刻有机电介质的方法

    公开(公告)号:US06660645B1

    公开(公告)日:2003-12-09

    申请号:US10051725

    申请日:2002-01-17

    IPC分类号: H07L21302

    CPC分类号: H01L21/31144

    摘要: A process for forming a semiconductor device may comprise forming an organic dielectric layer on a substrate, forming a protective layer on the organic dielectric layer, forming a photoresist mask on the protective layer, and silyating the photoresist mask. The protective layer is etched using the silyated photoresist mask as an etch mask, and then the organic dielectric layer is etched using the silyated photoresist mask as an etch mask. Metal may be deposited in a void etched in the organic dielectric layer to form a wiring, contact or via.

    摘要翻译: 用于形成半导体器件的工艺可以包括在衬底上形成有机电介质层,在有机介电层上形成保护层,在保护层上形成光致抗蚀剂掩模,并使光刻胶掩模进行硅化。 使用硅化光致抗蚀剂掩模作为蚀刻掩模蚀刻保护层,然后使用硅化光致抗蚀剂掩模作为蚀刻掩模蚀刻有机介电层。 金属可以沉积在蚀刻在有机介电层中的空隙中以形成布线,接触或通孔。