Methodology for layout-based modulation and optimization of nitride liner stress effect in compact models
    2.
    发明授权
    Methodology for layout-based modulation and optimization of nitride liner stress effect in compact models 有权
    基于布局的调制方法和紧凑模型中氮化物衬垫应力效应的优化

    公开(公告)号:US07337420B2

    公开(公告)日:2008-02-26

    申请号:US11193711

    申请日:2005-07-29

    IPC分类号: G06F17/50

    摘要: System and method for compact model algorithms to accurately account for effects of layout-induced changes in nitride liner stress in semiconductor devices. The layout-sensitive compact model algorithms account for the impact of large layout variation on circuits by implementing algorithms for obtaining the correct stress response approximations and layout extraction algorithms for obtaining the correct geometric parameters that drive the stress response. In particular, these algorithms include specific information from search “buckets” that are directionally-oriented and include directionally-specific distance measurements for analyzing in detail the specific shape neighborhood of the semiconductor device. The algorithms are additionally adapted to enable the modeling and stress impact determination of a device having single stress liner film and dual-stress liners (two different liner films that abut at an interface).

    摘要翻译: 用于紧凑模型算法的系统和方法来准确地解释半导体器件中氮化物衬垫应力的布局引起的变化的影响。 布局敏感的压缩模型算法通过实现用于获得正确的应力响应近似和布局提取算法的算法来解决大布局变化对电路的影响,以获得驱动应力响应的正确几何参数。 特别地,这些算法包括来自定向定向的搜索“桶”的特定信息,并且包括用于详细分析半导体器件的特定形状邻域的定向特定的距离测量。 算法还适用于使具有单个应力衬垫膜和双应力衬垫(在界面处邻接的两个不同衬垫膜)的器件的建模和应力冲击确定。

    Intersect area based ground rule for semiconductor design
    3.
    发明授权
    Intersect area based ground rule for semiconductor design 有权
    半导体设计相交区域基准规则

    公开(公告)号:US07941780B2

    公开(公告)日:2011-05-10

    申请号:US12105299

    申请日:2008-04-18

    IPC分类号: G06F17/50

    CPC分类号: G06F17/5081 G03F1/36

    摘要: A design rule that determines a degree of overlap between two design elements in two adjoining levels by estimating a physical overlap area, or an “intersect area,” of corresponding structures in a semiconductor chip is provided. The estimation of the physical intersect area may factor in line edge biasing, critical dimension tolerance, overlay tolerance, and corner rounding to provide an accurate estimate of a physical area for each of the structures corresponding to the two design elements. The intersect area is employed as a metric to determine compliance with a ground rule, i.e., the ground rule is specified in terms of the intersect region. Other derived quantities such as electrical resistance, electromigration resistance, expected yield may be calculated from the intersect area, and may be advantageously employed to optimize the design data.

    摘要翻译: 提供了一种设计规则,其通过估计半导体芯片中的对应结构的物理重叠区域或“交叉区域”来确定两个相邻级别中的两个设计元素之间的重叠程度。 物理相交区域的估计可以考虑线边缘偏置,临界尺寸公差,覆盖公差和角舍入,以提供对应于两个设计元素的每个结构的物理面积的精确估计。 采用交叉区域作为度量以确定是否符合基本规则,即基于交叉区域来指定接地规则。 可以从交叉区域计算其他衍生量,例如电阻,电迁移阻力,预期产量,并且可以有利地用于优化设计数据。

    Hard mask integrated etch process for patterning of silicon oxide and other dielectric materials
    4.
    发明授权
    Hard mask integrated etch process for patterning of silicon oxide and other dielectric materials 失效
    用于图案化氧化硅和其它介电材料的硬掩模集成蚀刻工艺

    公开(公告)号:US06869542B2

    公开(公告)日:2005-03-22

    申请号:US10249047

    申请日:2003-03-12

    摘要: Form an opening in a dielectric layer formed on a substrate comprises depositing a hard mask composed of an etch resistant material over a dielectric layer, e.g. a silicon oxide. Use a photoresist mask to expose the hard mask. Use a fluorocarbon plasma to etch through the window to form an opening through the hard mask. Then etch through the hard mask opening to pattern the dielectric layer. The hard mask comprises an RCH/RCHX material with the structural formula R:C:H or R:C:H:X, where R is selected from Si, Ge, B, Sn, Fe, Ti and X is selected from O, N, S and F. The plasma etching process employs a) a gas mixture comprising N2; fluorocarbon (CHF3, C4F8, C4F6, CF4, CH2F2, CH3F); an oxidizer (O2, CO2), and a noble diluent (Ar, He); b) a high DC bias (500-3000 Volts bias on the wafer); 3) medium pressure (20-100 mT.; and d) moderate temperatures (−20 to 60°).

    摘要翻译: 在形成在基板上的电介质层中形成开口,包括在电介质层上沉积由耐蚀刻材料构成的硬掩模, 氧化硅。 使用光刻胶掩模露出硬掩模。 使用氟碳等离子体通过窗口蚀刻以形成通过硬掩模的开口。 然后蚀刻穿过硬掩模开口以对介电层进行图案化。 硬掩模包括具有结构式R:C:H或R:C:H:X的RCH / RCHX材料,其中R选自Si,Ge,B,Sn,Fe,Ti和X选自O, N,S和F.等离子体蚀刻工艺使用a)包含N 2的气体混合物; 碳氟化合物(CHF 3,C 4 F 8,C 4 F 6,CF 4,CH 2 F 2,CH 3 F); 氧化剂(O 2,CO 2)和稀有稀释剂(Ar,He); b)高直流偏置(晶片上的500-3000伏偏压); 3)中压(20-100mT;和d)中等温度(-20至60°)。

    Via selection in integrated circuit design
    6.
    发明授权
    Via selection in integrated circuit design 有权
    通过集成电路设计中的选择

    公开(公告)号:US08631375B2

    公开(公告)日:2014-01-14

    申请号:US13443426

    申请日:2012-04-10

    IPC分类号: G06F17/50

    摘要: Solutions for efficiently implementing a via into a multi-level integrated circuit layout are disclosed. In various embodiments, a method of creating a multi-level integrated circuit layout with at least one via is disclosed, the method including: providing at least two layers of the multi-level integrated circuit layout; and selecting a via for connecting the at least two layers, wherein the selecting includes retrieving the via from a via library including a plurality of via types, the plurality of via types prioritized in the via library according to a predicted manufacturing yield for each of the plurality of vias.

    摘要翻译: 公开了将通孔有效地实现为多级集成电路布局的解决方案。 在各种实施例中,公开了一种创建具有至少一个通孔的多级集成电路布局的方法,所述方法包括:提供多层集成电路布局的至少两层; 以及选择用于连接所述至少两个层的通孔,其中所述选择包括从包括多个通孔类型的通孔库中检索所述通孔,所述多通道类型根据所述通孔库中的每一个的预测制造收益 多个通孔。

    Automated sensitivity definition and calibration for design for manufacturing tools
    7.
    发明授权
    Automated sensitivity definition and calibration for design for manufacturing tools 有权
    自动灵敏度定义和校准用于制造工具的设计

    公开(公告)号:US08141027B2

    公开(公告)日:2012-03-20

    申请号:US12652409

    申请日:2010-01-05

    IPC分类号: G06F17/50

    摘要: A method of automatic calibration of a design for manufacturing (DfM) simulation tool includes providing, as a first input, one or more defined rules for each of one or more semiconductor device levels to be simulated by the tool, and providing, as a second input, a plurality of defined feature size threshold ranges and increments for use in histogram generation of a number of failures with respect to a reference circuit; providing, as a third input, the reference circuit; executing the defined rules for the semiconductor device levels to be simulated, and outputting a fail count for the reference circuit at each defined threshold value, thereby generating histogram data of fail count versus threshold for the reference circuit; and providing, as a fourth input, a defined fail count metric, thereby calibrating the DfM tool for use with respect to a target circuit.

    摘要翻译: 一种用于制造设计(DfM)模拟工具的自动校准的方法包括为由工具模拟的一个或多个半导体器件级别中的每一个提供一个或多个限定规则作为第一输入,并且作为第二输入提供第二 输入,多个定义的特征尺寸阈值范围和增量,用于相对于参考电路的多个故障的直方图生成; 提供参考电路作为第三输入; 执行要被模拟的半导体器件电平的限定规则,并在每个定义的阈值处输出参考电路的故障计数,由此产生参考电路的故障计数与阈值的直方图数据; 并且作为第四输入提供定义的故障计数度量,从而校准用于目标电路的DfM工具。

    PRE-ANNEAL OF COSI, TO PREVENT FORMATION OF AMORPHOUS LAYER BETWEEN TI-O-N AND COSI
    8.
    发明申请
    PRE-ANNEAL OF COSI, TO PREVENT FORMATION OF AMORPHOUS LAYER BETWEEN TI-O-N AND COSI 失效
    COSE预先预防TI-O-N和COSI之间形成非晶层

    公开(公告)号:US20050070098A1

    公开(公告)日:2005-03-31

    申请号:US10674645

    申请日:2003-09-30

    摘要: The present invention provides a method for forming an interconnect to a cobalt or nickel silicide having a TiN diffusion barrier. The inventive method comprises providing an initial structure having vias to exposed silicide regions positioned on a substrate; annealing the initial structure in a nitrogen-containing ambient, wherein a nitrogen passivation layer is formed atop the exposed silicide region; depositing Ti atop the nitrogen passivation layer; annealing the Ti in a nitrogen-containing ambient to form a TiN diffusion barrier and an amorphous Ti cobalt silicide between the TiN diffusion layer and the cobalt or nickel silicide and depositing an interconnect metal within the vias and atop the TiN diffusion barrier. The nitrogen passivation layer substantially restricts diffusion between the Ti and silicide layers minimizing the amorphous Ti cobalt silicide layer that forms. Therefore, the amorphous Ti cobalt or Ti nickel silicide is restricted to a thickness of less than about 3.0 nm.

    摘要翻译: 本发明提供一种用于形成具有TiN扩散阻挡层的钴或镍硅化物的互连的方法。 本发明的方法包括提供具有通孔的初始结构,以暴露出位于基板上的硅化物区域; 在含氮环境中退火初始结构,其中在暴露的硅化物区域上形成氮钝化层; 在氮钝化层顶上沉积Ti; 在含氮环境中退火Ti以在TiN扩散层和钴或镍硅化物之间形成TiN扩散阻挡层和非晶Ti钴硅化物,并在通孔内和TiN扩散势垒顶上沉积互连金属。 氮钝化层基本上限制了Ti和硅化物层之间的扩散,使形成的无定形Ti钴硅化物层最小化。 因此,非晶Ti钴或Ti镍硅化物被限制在小于约3.0nm的厚度。

    METHOD OF MANUFACTURE OF RAISED SOURCE DRAIN MOSFET WITH TOP NOTCHED GATE STRUCTURE FILLED WITH DIELECTRIC PLUG IN AND DEVICE MANUFACTURED THEREBY
    9.
    发明申请
    METHOD OF MANUFACTURE OF RAISED SOURCE DRAIN MOSFET WITH TOP NOTCHED GATE STRUCTURE FILLED WITH DIELECTRIC PLUG IN AND DEVICE MANUFACTURED THEREBY 审中-公开
    具有插入电介质插入件的顶部注入栅结构的放大源漏MOSFET的制造方法及其制造方法

    公开(公告)号:US20050054169A1

    公开(公告)日:2005-03-10

    申请号:US10605100

    申请日:2003-09-09

    CPC分类号: H01L29/66772 H01L29/78618

    摘要: A method is provided for forming an SOI MOSFET device with a silicon layer formed on a dielectric layer with a gate electrode stack, with sidewall spacers on sidewalls of the gate electrode stack and raised source/drain regions formed on the surface of the silicon layer. The gate electrode stack comprises a gate electrode formed of polysilicon over a gate dielectric layer formed on the surface of the silicon layer. A plug of dielectric material is formed in a notch in a cap layer above the gate polysilicon. The sidewalls of the gate electrode is covered by the sidewall spacers which cover a portion of the plug for the purpose of eliminating the exposure of the gate polysilicon so that formation of spurious epitaxial growth during the formation of raised source/drain regions is avoided.

    摘要翻译: 提供了一种用于形成具有形成在具有栅极电极堆叠的电介质层上的硅层的SOI MOSFET器件的方法,在栅电极堆叠的侧壁上具有侧壁间隔物,并且形成在硅层的表面上的升高的源极/漏极区域。 栅极电极堆叠包括在形成于硅层的表面上的栅极电介质层上的多晶硅形成的栅电极。 在栅多晶硅上方的帽层中的凹口中形成介电材料塞。 为了消除栅极多晶硅的暴露,覆盖一部分插塞的侧壁间隔物覆盖栅电极的侧壁,从而避免在形成升高的源极/漏极区域期间形成假外延生长。

    Method for forming a TiN layer on top of a metal silicide layer in a semiconductor structure and structure formed
    10.
    发明授权
    Method for forming a TiN layer on top of a metal silicide layer in a semiconductor structure and structure formed 有权
    在半导体结构中的金属硅化物层的顶部上形成TiN层的方法和形成的结构

    公开(公告)号:US06436823B1

    公开(公告)日:2002-08-20

    申请号:US09679738

    申请日:2000-10-05

    IPC分类号: H01L2144

    摘要: A method for forming a TiN layer on top of a metal silicide layer in a semiconductor structure without the formation of a thick amorphous layer containing Ti, Co and Si and the structure formed are provided. In the method, after a Ti layer is deposited on top of a metal silidide layer, a dual-step annealing process is conducted in which a low temperature annealing in a forming gas (or ammonia) at a temperature not higher than 500° C. is first conducted for less than 2 hours followed by a high temperature annealing in a nitrogen-containing gas (or ammonia) at a second temperature not lower than 500° for less than 2 hours to form the TiN layer. The present invention method prevents the problem usually caused by a thick amorphous material layer of Ti—Si—Co which produces weakly bonded Ti which reacts with fluorine atoms from WF6 during a subsequent CVD W deposition process and causes liner failure due to a volume expansion of the amorphous material. The maximum thickness of the amorphous material layer formed by the present invention method is less than 5 nm which minimizes the line failure problem.

    摘要翻译: 提供了一种在半导体结构中的金属硅化物层的顶部上形成TiN层的方法,而不形成含有Ti,Co和Si的厚非晶层以及形成的结构。 在该方法中,在金属硅化物层的顶部沉积Ti层之后,进行双相退火工艺,其中在不高于500℃的温度下在成形气体(或氨)中进行低温退火。 首先进行少于2小时,然后在不低于500℃的第二温度下在含氮气体(或氨)中进行低温退火2小时以形成TiN层。 本发明的方法防止了在随后的CVD W沉积过程中由Ti-Si-Co的厚的无定形材料层产生的弱结合的Ti与来自WF6的氟原子反应而产生的弱结合的问题,并导致由于体积膨胀引起的衬管故障 无定形材料。 通过本发明方法形成的非晶材料层的最大厚度小于5nm,这使线路故障问题最小化。