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    • 3. 发明授权
    • Methods and compositions for polishing silicon-containing substrates
    • 抛光含硅基材的方法和组合物
    • US08247327B2
    • 2012-08-21
    • US12221023
    • 2008-07-30
    • Francesco De Rege ThesauroZhan Chen
    • Francesco De Rege ThesauroZhan Chen
    • H01L21/302
    • C09K3/1463B24B37/044C09G1/02H01L21/31053H01L21/3212
    • The invention provides chemical-mechanical polishing (CMP) compositions and methods for polishing a silicon-containing substrate. A method of the invention comprises the steps of contacting a silicon-containing substrate with a polishing pad and an aqueous CMP composition, and causing relative motion between the polishing pad and the substrate while maintaining a portion of the CMP composition in contact with the surface of the substrate to abrade at least a portion of the substrate. The CMP composition comprises a ceria abrasive, a polishing additive bearing a functional group with a pKa of about 4 to about 9, a nonionic surfactant with an hydrophilic portion and a lipophilic portion wherein the hydrophilic portion has a number average molecular weight of about 500 g/mol or higher, and an aqueous carrier, wherein the pH of the composition is 7 or less. The method reduces defects on the wafers, particularly local areas of high removal. The method is also useful for polishing dielectric silicon-containing substrates at a high rate relative to semiconductor silicon-containing substrates.
    • 本发明提供用于抛光含硅基材的化学机械抛光(CMP)组合物和方法。 本发明的方法包括以下步骤:使含硅衬底与抛光垫和水性CMP组合物接触,并且在保持CMP组合物的一部分与表面接触的同时引起抛光垫和衬底之间的相对运动 所述衬底磨损所述衬底的至少一部分。 CMP组合物包括二氧化铈研磨剂,具有pKa约4至约9的官能团的抛光添加剂,具有亲水部分和亲油部分的非离子表面活性剂,其中亲水部分的数均分子量为约500g / mol以上,和水性载体,其中组合物的pH为7以下。 该方法减少了晶片上的缺陷,特别是高去除的局部区域。 该方法对于相对于含半导体硅的衬底以高速率抛光介电含硅衬底也是有用的。
    • 5. 发明申请
    • METHOD FOR SYNTHESIZING HOMOPOLYMER N-VINYL BUTYROLACTAM WITH SUPER-LOW MOLECULAR WEIGHT AND SUPER-LOW RESIDUAL MONOMER
    • 用于合成具有超低分子量和超低残留单体的均聚物N-乙烯基丁二酰胺的方法
    • US20150141600A1
    • 2015-05-21
    • US14401743
    • 2012-07-23
    • Yu WangWei LiuZhan Chen
    • Yu WangWei LiuZhan Chen
    • C08F24/00
    • C08F24/00C08F4/38C08F6/003C08F126/06C08L39/04
    • The present invention relates to a synthesis method of ultra low molecular weight homopolymerized N-vinyl butyrolactam with ultra low residual monomer content, which comprises: using N-vinyl butyrolactam monomers and water with the mass ratio of 3:17˜8:12, then based on the N-vinyl butyrolactam monomers, using 0.5%˜5.0% by weight of initiators, 0.1%˜5.0% by weight of a catalyst, and 0.1%˜10% by weight of a molecular weight regulator; in the presence of an inert gas, adding the above mentioned raw materials in batches, adjusting the pH of the reaction system to 7.0-8.0 with an activator, reacting at the polymerization temperature of 60-85° C.; finally adding a peroxide and keeping the temperature for 2 hours, to obtain an aqueous solution of ultra low molecular weight homopolymerized N-vinyl butyrolactam, drying the aqueous solution to obtain a powdery ultra low molecular weight homopolymerized N-vinyl butyrolactam with ultra low residual monomer content, whose K value is 12-17, whose molecular weight is 2000-15000, and whose residual monomer content is less than 10 ppm, so the present invention is designed skillfully and simple in preparation, the residual monomer content of the ultra low molecular weight homopolymerized N-vinyl butyrolactam with ultra low residual monomer content prepared is less than 10 ppm, and the K value is 12-17, therefore the present invention is suitable for large-scale popularization.
    • 本发明涉及具有超低残留单体含量的超低分子量均聚N-乙烯基丁内酰胺的合成方法,其包括:使用N-乙烯基丁内酰胺单体和质量比为3:17〜8:12的水,然后 基于N-乙烯基丁内酰胺单体,使用0.5重量%〜5.0重量%的引发剂,0.1重量%〜5.0重量%的催化剂和0.1重量%〜10重量%的分子量调节剂; 在惰性气体的存在下,分批加入上述原料,用活化剂将反应体系的pH调节至7.0-8.0,在聚合温度为60-85℃下反应; 最后加入过氧化物并保持温度2小时,得到超低分子量均聚N-乙烯基丁内酰胺水溶液,干燥该水溶液,得到具有超低残留单体的粉状超低分子量均聚N-乙烯基丁内酰胺 其K值为12-17,分子量为2000-15000,残留单体含量小于10ppm,本发明设计巧妙简单,超低分子量的残留单体含量 制备的超低残留单体含量的均聚的N-乙烯基丁内酰胺重量小于10ppm,K值为12-17,因此本发明适用于大规模普及。
    • 6. 发明授权
    • Compositions for polishing silicon-containing substrates
    • 用于抛光含硅基材的组合物
    • US08597540B2
    • 2013-12-03
    • US13554829
    • 2012-07-20
    • Francesco De Rege ThesauroZhan Chen
    • Francesco De Rege ThesauroZhan Chen
    • C09K13/06
    • C09K3/1463B24B37/044C09G1/02H01L21/31053H01L21/3212
    • The invention provides chemical-mechanical polishing (CMP) compositions and methods for polishing a silicon-containing substrate. A method of the invention comprises the steps of contacting a silicon-containing substrate with a polishing pad and an aqueous CMP composition, and causing relative motion between the polishing pad and the substrate while maintaining a portion of the CMP composition in contact with the surface of the substrate to abrade at least a portion of the substrate. The CMP composition comprises a ceria abrasive, a polishing additive bearing a functional group with a pKa of about 4 to about 9, a nonionic surfactant with an hydrophilic portion and a lipophilic portion wherein the hydrophilic portion has a number average molecular weight of about 500 g/mol or higher, and an aqueous carrier, wherein the pH of the composition is 7 or less. The method reduces defects on the wafers, particularly local areas of high removal. The method is also useful for polishing dielectric silicon-containing substrates at a high rate relative to semiconductor silicon-containing substrates.
    • 本发明提供用于抛光含硅基材的化学机械抛光(CMP)组合物和方法。 本发明的方法包括以下步骤:使含硅衬底与抛光垫和水性CMP组合物接触,并且在保持CMP组合物的一部分与表面接触的同时引起抛光垫和衬底之间的相对运动 所述衬底磨损所述衬底的至少一部分。 CMP组合物包括二氧化铈研磨剂,具有pKa约4至约9的官能团的抛光添加剂,具有亲水部分和亲油部分的非离子表面活性剂,其中亲水部分的数均分子量为约500g / mol以上,和水性载体,其中组合物的pH为7以下。 该方法减少了晶片上的缺陷,特别是高去除的局部区域。 该方法对于相对于含半导体硅的衬底以高速率抛光介电含硅衬底也是有用的。
    • 7. 发明申请
    • Human Voice Distinguishing Method and Device
    • 人声识别方法与设备
    • US20110166857A1
    • 2011-07-07
    • US13001596
    • 2009-09-15
    • Xiangyong XieZhan Chen
    • Xiangyong XieZhan Chen
    • G10L15/00
    • G10L25/78
    • A human voice distinguishing method and device are provided. The method involves: taking every n sampling points of the current frame of audio signals as one subsection, wherein n is a positive integer, judging whether two adjacent subsections have transition relative to a distinguishing threshold, wherein the sliding maximum absolute value of the two adjacent subsections is more and less than the distinguishing threshold respectively, if so, then determining the current frame to be human voice, where the sliding maximum absolute value of the subsection is obtained by the following method: taking the maximum value of absolute intensity of every sampling point in this subsection as the initial maximum absolute value of this subsection, and taking the maximum value of the initial maximum absolute value of this subsection and m subsections following this subsection as the sliding maximum absolute value of this subsection, wherein m is a positive integer.
    • 提供人声识别方法和装置。 该方法包括:将音频信号当前帧的每n个采样点作为一个子部分,其中n是正整数,判断两个相邻子部分是否具有相对于一个区别阈值的转变,其中两个邻近的滑动最大绝对值 如果是,则分节分别大于区别阈值,然后将当前帧确定为人声,其中通过以下方法获得子段的滑动最大绝对值:取每个采样的绝对强度的最大值 指出本小节作为本款的初始最大绝对值,并将本小节的初始最大绝对值的最大值和本小节后面的m个小节作为本小节的滑动最大绝对值,其中m为正整数 。
    • 9. 发明授权
    • Design rule correction system and method
    • 设计规则校正系统及方法
    • US06189132B1
    • 2001-02-13
    • US09057961
    • 1998-04-09
    • Fook-Luen HengZhan ChenGustavo E. TellezJohn CohnRani Narayan
    • Fook-Luen HengZhan ChenGustavo E. TellezJohn CohnRani Narayan
    • G06F1750
    • G06F17/5081
    • A method of modifying a layout of a plurality of objects in accordance with a plurality of predetermined criteria is presented. An objective function is defined for measuring a location perturbation and a separation perturbation of the objects in the layout. A linear system is defined using linear constraints in terms of design rules and the objective function to describe separations between layout objects. The linear system is solved to simultaneously remove violations of the design rules, and shapes and positions of objects in the layout are modified in accordance with the solution of the linear system such that a total perturbation of the objects in the layout is reduced. A system for implementing the present invention is also presented.
    • 呈现了根据多个预定标准修改多个对象的布局的方法。 定义了一个目标函数,用于测量布局中对象的位置扰动和分离扰动。 使用线性约束在设计规则和用于描述布局对象之间的分离的目标函数方面定义线性系统。 解决线性系统以同时消除违反设计规则的情况,并且根据线性系统的解决方案来修改布局中对象的形状和位置,使得布局中的对象的总扰动减小。 还提出了用于实现本发明的系统。