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    • 7. 发明申请
    • CMP Polishing Liquid and Polishing Method
    • CMP抛光液和抛光方法
    • US20090094901A1
    • 2009-04-16
    • US12298342
    • 2007-04-24
    • Takashi ShinodaShigeru NobeTakaaki Tanaka
    • Takashi ShinodaShigeru NobeTakaaki Tanaka
    • B24B37/00H01L21/304H01L21/306C09K3/14
    • H01L21/7684B24B37/044C09G1/02H01L21/3212
    • A CMP polishing liquid being capable of using in a chemical mechanical polishing comprising of: a first chemical mechanical polishing step of polishing a conductive substance layer of a substrate having an interlayer insulation film containing convex and concave regions on a surface thereof, a barrier layer coating along the surface of the interlayer insulation film, and the conductive substance layer coating the barrier layer while filling the concave regions, and thus exposing the barrier layer in the convex regions; and a second chemical mechanical polishing step of exposing the interlayer insulation film in the convex regions by polishing the barrier layer exposed in the first chemical mechanical polishing step; characterized in that a difference (B)−(A) is 650 {acute over (Å)} or less, wherein the (A) is a polishing amount of the interlayer insulation film in a field area when the interlayer insulation film in the field area having a width of 1,000 μm or more of the interlayer insulation film region formed on the substrate is polished to a depth of 400 {acute over (Å)} or more; and the (B) is a polishing amount of the interlayer insulation film in a stripe-shaped patterned area having a total width of 1,000 μm or more wherein a wiring metal region having a width of 90 μm and the interlayer insulation film region having a width of 10 μm are aligned alternately on the substrate when the interlayer insulation film in the field area having the width of 1,000 μm or more of the interlayer insulation film region formed on the substrate is polished to a depth of 400 {acute over (Å)} or more.
    • 一种能够在化学机械抛光中使用的CMP抛光液,包括:第一化学机械抛光步骤,其在其表面上抛光具有包含凸凹区域的层间绝缘膜的基板的导电物质层,阻挡层涂层 沿着所述层间绝缘膜的表面,并且所述导电物质层在填充所述凹区域的同时涂覆所述阻挡层,从而使所述阻挡层暴露在所述凸部区域中。 以及第二化学机械抛光步骤,通过对在所述第一化学机械抛光步骤中暴露的所述阻挡层进行抛光来使所述凸起区域中的所述层间绝缘膜曝光; 其特征在于,差异(B) - (A)为650(锐锐度())以下,其中,(A)是场内层间绝缘膜的场区域中的层间绝缘膜的研磨量 将形成在基板上的层间绝缘膜区域的宽度为1,000μm以上的区域抛光至深度为400()以上的深度; (B)是总宽度为1000μm以上的条状图案区域中的层间绝缘膜的研磨量,其中宽度为90μm的布线金属区域和宽度为90μm的层间绝缘膜区域 当在衬底上形成的层间绝缘膜区域的宽度为1,000μm或更大的场区域中的层间绝缘膜被抛光到深度为400()时,交替地在衬底上对准10微米。 或者更多。
    • 8. 发明申请
    • Polishing slurry for CMP and polishing method
    • 抛光浆料用于CMP和抛光方法
    • US20070117394A1
    • 2007-05-24
    • US11545787
    • 2006-10-11
    • Takashi ShinodaShigeru NobeTakafumi SakuradaYoshikazu OomoriTadahiro Kimura
    • Takashi ShinodaShigeru NobeTakafumi SakuradaYoshikazu OomoriTadahiro Kimura
    • H01L21/66H01L21/461
    • C09G1/02C23F3/04H01L21/30625H01L21/31055H01L21/3212H01L21/32125H01L21/7684H01L21/76865
    • The invention provides polishing slurry for CMP for suppressing corrosion of wiring lines of a conductive substance, or for suppressing bimetallic corrosion of a barrier conductor and conductive substance, by suppressing electrons from being transferred at near the boundaries between a barrier conductor and a conductive substance such as copper. The invention provides polishing slurry for CMP for polishing at least a conductor layer and a conductive substance layer in contact with the conductor layer, wherein the absolute value of the potential difference between the conductive substance and the conductor at 50±5° C. is 0.25 V or less in the polishing slurry when a positive electrode and a negative electrode of a potentiometer are connected to the conductive substance and the conductor, respectively. The polishing slurry for CMP preferably comprises at least one compound selected from heterocyclic compounds containing any one of hydroxyl group, carbonyl group, carboxyl group, amino group, amide group and sulfinyl group, and containing at least one of nitrogen and sulfur atoms.
    • 本发明提供了通过抑制电子在阻挡导体和导电物质之间的边界附近转移而抑制导电物质的布线的腐蚀或抑制阻挡导体和导电物质的双金属腐蚀的CMP抛光浆料,例如 作为铜。 本发明提供了用于CMP的抛光浆料,用于至少对与导体层接触的导体层和导电物质层进行抛光,其中在50±5℃下导电物质与导体之间的电位差的绝对值为0.25 当电位计的正电极和负电极分别连接到导电物质和导体时,抛光浆料中的V或更小。 用于CMP的抛光浆料优选包含至少一种选自含有羟基,羰基,羧基,氨基,酰胺基和亚磺酰基中的任何一种的杂环化合物并且含有氮和硫原子中的至少一个的化合物。