NOVEL METHOD FOR REMOVING DUMMY POLY IN A GATE LAST PROCESS
    1.
    发明申请
    NOVEL METHOD FOR REMOVING DUMMY POLY IN A GATE LAST PROCESS 有权
    用于在门过程中去除多余聚合物的新方法

    公开(公告)号:US20100124823A1

    公开(公告)日:2010-05-20

    申请号:US12275082

    申请日:2008-11-20

    IPC分类号: H01L21/302 H01L21/71

    摘要: A method is provided for fabricating a semiconductor device. The method includes removing a silicon material from a gate structure located on a substrate through a cycle including: etching the silicon material to remove a portion thereof, where the substrate is spun at a spin rate, applying a cleaning agent to the substrate, and drying the substrate; and repeating the cycle, where a subsequent cycle includes a subsequent spin rate for spinning the substrate during the etching and where the subsequent spin rate does not exceed the spin rate of the previous cycle.

    摘要翻译: 提供了制造半导体器件的方法。 该方法包括通过循环从位于衬底上的栅极结构去除硅材料,包括:蚀刻硅材料以除去其中的一部分,其中衬底以旋转速率纺丝,向衬底施加清洁剂,并干燥 基材; 并重复该循环,其中随后的循环包括用于在蚀刻期间旋转衬底的随后旋转速率,并且其中随后的旋转速率不超过先前循环的旋转速率。

    Method for removing dummy poly in a gate last process
    2.
    发明授权
    Method for removing dummy poly in a gate last process 有权
    在门最后一个过程中去除虚拟多边形的方法

    公开(公告)号:US08415254B2

    公开(公告)日:2013-04-09

    申请号:US12275082

    申请日:2008-11-20

    IPC分类号: H01L21/302

    摘要: A method is provided for fabricating a semiconductor device. The method includes removing a silicon material from a gate structure located on a substrate through a cycle including: etching the silicon material to remove a portion thereof, where the substrate is spun at a spin rate, applying a cleaning agent to the substrate, and drying the substrate; and repeating the cycle, where a subsequent cycle includes a subsequent spin rate for spinning the substrate during the etching and where the subsequent spin rate does not exceed the spin rate of the previous cycle.

    摘要翻译: 提供了制造半导体器件的方法。 该方法包括通过循环从位于衬底上的栅极结构去除硅材料,包括:蚀刻硅材料以除去其中的一部分,其中衬底以旋转速率纺丝,向衬底施加清洁剂,并干燥 基材; 并重复该循环,其中随后的循环包括用于在蚀刻期间旋转衬底的随后旋转速率,并且其中随后的旋转速率不超过先前循环的旋转速率。

    Methods for forming metal gate transistors
    4.
    发明授权
    Methods for forming metal gate transistors 有权
    形成金属栅晶体管的方法

    公开(公告)号:US08268085B2

    公开(公告)日:2012-09-18

    申请号:US12719532

    申请日:2010-03-08

    IPC分类号: B08B3/04

    摘要: A method for cleaning a diffusion barrier over a gate dielectric of a metal-gate transistor over a substrate is provided. The method includes cleaning the diffusion barrier with a first solution including at least one surfactant. The amount of the surfactant of the first solution is about a critical micelle concentration (CMC) or more. The diffusion barrier is cleaned with a second solution. The second solution has a physical force to remove particles over the diffusion barrier. The second solution is substantially free from interacting with the diffusion barrier.

    摘要翻译: 提供了一种在衬底上清洁金属栅极晶体管的栅极电介质上的扩散阻挡层的方法。 该方法包括用包含至少一种表面活性剂的第一溶液清洗扩散阻挡层。 第一溶液的表面活性剂的量约为临界胶束浓度(CMC)或更高。 扩散阻挡层用第二种溶液清洗。 第二种解决方案具有去除扩散阻挡层上的颗粒的物理力。 第二溶液基本上不与扩散阻挡层相互作用。

    METHODS FOR FORMING METAL GATE TRANSISTORS
    5.
    发明申请
    METHODS FOR FORMING METAL GATE TRANSISTORS 有权
    形成金属栅极晶体管的方法

    公开(公告)号:US20100240204A1

    公开(公告)日:2010-09-23

    申请号:US12719532

    申请日:2010-03-08

    IPC分类号: H01L21/28 H01L21/302 B08B3/00

    摘要: A method for cleaning a diffusion barrier over a gate dielectric of a metal-gate transistor over a substrate is provided. The method includes cleaning the diffusion barrier with a first solution including at least one surfactant. The amount of the surfactant of the first solution is about a critical micelle concentration (CMC) or more. The diffusion barrier is cleaned with a second solution. The second solution has a physical force to remove particles over the diffusion barrier. The second solution is substantially free from interacting with the diffusion barrier.

    摘要翻译: 提供了一种在衬底上清洁金属栅极晶体管的栅极电介质上的扩散阻挡层的方法。 该方法包括用包含至少一种表面活性剂的第一溶液清洗扩散阻挡层。 第一溶液的表面活性剂的量约为临界胶束浓度(CMC)或更高。 扩散阻挡层用第二种溶液清洗。 第二种解决方案具有去除扩散阻挡层上的颗粒的物理力。 第二溶液基本上不与扩散阻挡层相互作用。

    METHOD FOR PATTERNING A METAL GATE
    6.
    发明申请
    METHOD FOR PATTERNING A METAL GATE 有权
    用于绘制金属门的方法

    公开(公告)号:US20100112811A1

    公开(公告)日:2010-05-06

    申请号:US12431838

    申请日:2009-04-29

    IPC分类号: H01L21/28

    摘要: The present disclosure provides a method for fabricating a semiconductor device. The method includes forming first, second, third, and fourth gate structures on a semiconductor substrate, each gate structure having a dummy gate, removing the dummy gate from the first, second, third, and fourth gate structures, thereby forming first, second, third, and fourth trenches, respectively, forming a metal layer to partially fill in the first, second, third, and fourth trenches, forming a first photoresist layer over the first, second, and third trenches, etching a portion of the metal layer in the fourth trench, removing the first photoresist layer, forming a second photoresist layer over the second and third trenches, etching the metal layer in the first trench and the remaining portion of the metal layer in the fourth trench, and removing the second photoresist layer.

    摘要翻译: 本公开提供了一种用于制造半导体器件的方法。 该方法包括在半导体衬底上形成第一,第二,第三和第四栅极结构,每个栅极结构具有虚拟栅极,从第一,第二,第三和第四栅极结构去除伪栅极,从而形成第一, 第三沟槽和第四沟槽,分别形成金属层以部分地填充在第一,第二,第三和第四沟槽中,在第一,第二和第三沟槽上形成第一光致抗蚀剂层,蚀刻金属层的一部分 第四沟槽,去除第一光致抗蚀剂层,在第二和第三沟槽上形成第二光致抗蚀剂层,蚀刻第一沟槽中的金属层和第四沟槽中金属层的剩余部分,以及去除第二光致抗蚀剂层。

    High selectivity etching process for metal gate N/P patterning
    8.
    发明授权
    High selectivity etching process for metal gate N/P patterning 失效
    金属栅N / P图案化的高选择性蚀刻工艺

    公开(公告)号:US07732344B1

    公开(公告)日:2010-06-08

    申请号:US12478922

    申请日:2009-06-05

    IPC分类号: H01L21/302

    摘要: A method for fabricating a integrated circuit with improved performance is disclosed. The method comprises providing a substrate; forming a hard mask layer over the substrate; forming protected portions and unprotected portions of the hard mask layer; performing a first etching process, a second etching process, and a third etching process on the unprotected portions of the hard mask layer, wherein the first etching process partially removes the unprotected portions of the hard mask layer, the second etching process treats the unprotected portions of the hard mask layer, and the third etching process removes the remaining unprotected portions of the hard mask layer; and performing a fourth etching process to remove the protected portions of the hard mask layer.

    摘要翻译: 公开了一种制造具有改进性能的集成电路的方法。 该方法包括提供基底; 在衬底上形成硬掩模层; 形成硬掩模层的受保护部分和未保护部分; 对硬掩模层的未保护部分进行第一蚀刻工艺,第二蚀刻工艺和第三蚀刻工艺,其中第一蚀刻工艺部分地去除硬掩模层的未保护部分,第二蚀刻工艺处理未保护部分 的硬掩模层,并且第三蚀刻工艺除去硬掩模层的剩余的未保护部分; 以及执行第四蚀刻工艺以去除所述硬掩模层的被保护部分。

    Surface preparation for gate oxide formation that avoids chemical oxide formation
    9.
    发明授权
    Surface preparation for gate oxide formation that avoids chemical oxide formation 有权
    防止化学氧化物形成的栅极氧化物形成的表面处理

    公开(公告)号:US07727900B2

    公开(公告)日:2010-06-01

    申请号:US11358624

    申请日:2006-02-21

    IPC分类号: H01L21/302 H01L21/461

    摘要: A cleaning sequence usable in semiconductor manufacturing efficiently cleans semiconductor substrates while preventing chemical oxide formation thereon. The sequence includes the sequence of: 1) treating with an HF solution; 2) treating with pure H2SO4; 3) treating with an H2O2 solution; 4) a DI water rinse; and 5) treatment with an HCl solution. The pure H2SO4 solution may include an H2SO4 concentration of about ninety-eight percent (98%) or greater. After the HCl solution treatment, the cleaned surface may be a silicon surface that is free of a chemical oxide having a thickness of 5 angstroms or greater. The invention finds particular advantage in semiconductor devices that utilize multiple gate oxide thicknesses.

    摘要翻译: 可用于半导体制造的清洁顺序有效地清洁半导体衬底,同时防止其上形成化学氧化物。 该序列包括以下顺序:1)用HF溶液处理; 2)用纯H 2 SO 4处理; 3)用H 2 O 2溶液处理; 4)去离子水冲洗; 和5)用HCl溶液处理。 纯H 2 SO 4溶液可以包括约百分之九十八(98%)或更高的H 2 SO 4浓度。 在HCl溶液处理之后,清洁的表面可以是不含厚度为5埃或更大的化学氧化物的硅表面。 本发明在利用多个栅极氧化物厚度的半导体器件中具有特别的优点。