Methods of forming a thin ferroelectric layer and methods of manufacturing a semiconductor device including the same
    61.
    发明授权
    Methods of forming a thin ferroelectric layer and methods of manufacturing a semiconductor device including the same 失效
    形成薄铁电体层的方法和制造其的半导体器件的制造方法

    公开(公告)号:US08124526B2

    公开(公告)日:2012-02-28

    申请号:US12503440

    申请日:2009-07-15

    IPC分类号: H01L21/4763

    摘要: In methods of forming a thin ferroelectric layer and methods of manufacturing a semiconductor device, a preliminary ferroelectric layer is formed on a substrate by depositing a metal oxide including lead, zirconium and titanium. The surface of the preliminary ferroelectric layer is polished using a slurry composition including an acrylic acid polymer, abrasive particles, and water to form a thin ferroelectric layer on the substrate. The slurry composition may reduce a polishing rate of the preliminary ferroelectric layer such that removal of a bulk portion of the preliminary ferroelectric layer may be suppressed and the surface roughness of the preliminary ferroelectric layer may be improved.

    摘要翻译: 在形成薄铁电体层的方法和制造半导体器件的方法中,通过沉积包括铅,锆和钛的金属氧化物,在衬底上形成初步铁电层。 使用包括丙烯酸聚合物,磨料颗粒和水的浆料组合物对预制铁电层的表面进行抛光,以在基材上形成薄铁电层。 浆料组合物可以降低预备铁电体层的抛光速率,从而可以抑制初级铁电层的体积部分的去除,并且可以提高预铁电层的表面粗糙度。

    Methods of fabricating semiconductor devices including channel layers having improved defect density and surface roughness characteristics
    63.
    发明授权
    Methods of fabricating semiconductor devices including channel layers having improved defect density and surface roughness characteristics 有权
    制造半导体器件的方法包括具有改进的缺陷密度和表面粗糙度特性的沟道层

    公开(公告)号:US07678625B2

    公开(公告)日:2010-03-16

    申请号:US11962742

    申请日:2007-12-21

    IPC分类号: H01L21/84

    摘要: A method of fabricating a semiconductor device including a channel layer includes forming a single crystalline semiconductor layer on a semiconductor substrate. The single crystalline semiconductor layer includes a protrusion extending from a surface thereof. A first polishing process is performed on the single crystalline semiconductor layer to remove a portion of the protrusion such that the single crystalline semiconductor layer includes a remaining portion of the protrusion. A second polishing process different from the first polishing process is performed to remove the remaining portion of the protrusion and define a substantially planar single crystalline semiconductor layer having a substantially uniform thickness. A sacrificial layer may be formed on the single crystalline semiconductor layer and used as a polish stop for the first polishing process to define a sacrificial layer pattern, which may be removed prior to the second polishing process. Related methods of fabricating stacked semiconductor memory devices are also discussed.

    摘要翻译: 制造包括沟道层的半导体器件的方法包括在半导体衬底上形成单晶半导体层。 单晶半导体层包括从其表面延伸的突起。 在单晶半导体层上执行第一抛光工艺以去除突起的一部分,使得单晶半导体层包括突起的剩余部分。 执行与第一抛光工艺不同的第二抛光工艺以去除突起的剩余部分并限定具有基本上均匀厚度的基本上平面的单晶半导体层。 可以在单晶半导体层上形成牺牲层,并且用作第一抛光工艺的抛光止挡件以限定可在第二抛光工艺之前去除的牺牲层图案。 还讨论了制造叠层半导体存储器件的相关方法。

    Method of fabricating self-aligned contact pad using chemical mechanical polishing process

    公开(公告)号:US07670942B2

    公开(公告)日:2010-03-02

    申请号:US11525490

    申请日:2006-09-23

    IPC分类号: H01L21/4763

    摘要: A method of fabricating a self-aligned contact pad (SAC) includes forming stacks of a conductive line and a capping layer on a semiconductor substrate, spacers covering sidewalls of the stacks, and an insulation layer filling gaps between the stacks and exposing the top of the capping layer, etching the capping layer to form damascene grooves, forming a plurality of first etching masks with a material different from that of the capping layer to fill the damascene grooves without covering the top of the insulation layer, and forming a second etching mask having an opening region that exposes some of the first etching masks and a portion of the insulation layer located between the first etching masks. The method further includes etching the portion of the insulation layer exposed by the opening region using the first and second etching masks to form a plurality of opening holes, removing the second etching mask, forming a conductive layer filling the opening holes to cover the remaining first etching masks and performing a chemical mechanical polishing (CMP) process on the conductive layer using the capping layer as a polishing end point to remove the first etching masks such that a plurality of SAC pads separated from each other are formed that fill the opening holes.

    Slurry and method for chemical-mechanical polishing
    66.
    发明申请
    Slurry and method for chemical-mechanical polishing 审中-公开
    浆料和化学机械抛光方法

    公开(公告)号:US20070145012A1

    公开(公告)日:2007-06-28

    申请号:US11542256

    申请日:2006-10-04

    IPC分类号: C09K13/00 C03C15/00 B44C1/22

    摘要: Disclosed is a slurry and method for chemical-mechanical polishing operation. The slurry may contain abrasive particles, an oxidizer, a pH controller, a chelating agent and water. The viscosity of the slurry may be in the range of about 1.0 cP—about 1.05 cP, so that the step difference may be reduced between regions with patterns and without patterns even after completing the chemical-mechanical polishing operation. A permissible rate of depth of focus (DOF) may not need to be controlled in the subsequent photolithography operation, which may enable the subsequent photolithography operation to be conducted by an optical system with relatively low DOF.

    摘要翻译: 公开了一种用于化学机械抛光操作的浆料和方法。 浆料可以含有磨料颗粒,氧化剂,pH控制剂,螯合剂和水。 浆料的粘度可以在约1.0cP-约1.05cP的范围内,使得即使在完成化学机械抛光操作之后,也可以在具有图案的区域与无图案的区域之间降低阶梯差。 在随后的光刻操作中可能不需要控制焦深(DOF)的允许率,这可以使得随后的光刻操作能够由具有相对低的DOF的光学系统进行。

    Polishing pads including sidewalls and related polishing apparatuses
    70.
    发明授权
    Polishing pads including sidewalls and related polishing apparatuses 失效
    抛光垫包括侧壁和相关的抛光装置

    公开(公告)号:US08475238B2

    公开(公告)日:2013-07-02

    申请号:US12855164

    申请日:2010-08-12

    IPC分类号: B24D11/00

    摘要: A polishing pad may include a base and a plurality of polishing protrusions on a surface of the base. Each polishing protrusion may include a sidewall defining an opening in a surface of the polishing protrusion opposite the base. In addition, portions of the sidewall opposite the base may define a contact surface.

    摘要翻译: 抛光垫可以包括基底和在基底的表面上的多个抛光突起。 每个抛光突起可以包括限定在与基座相对的抛光突起的表面中的开口的侧壁。 此外,与基座相对的侧壁的部分可以限定接触表面。