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    • 53. 发明授权
    • Method and system for physically-assisted chemical-vapor deposition
    • 物理辅助化学气相沉积的方法和系统
    • US06596133B1
    • 2003-07-22
    • US09678467
    • 2001-06-14
    • Mehrdad M. MoslehiAjit P. Paranjpe
    • Mehrdad M. MoslehiAjit P. Paranjpe
    • C23C1432
    • C23C14/3442C23C14/0031C23C14/3464C23C14/56C23C16/0281C23C16/48C23C16/54H01J37/3233H01J37/34
    • An apparatus and method for the deposition of thin film material layers provides improved use of processing chamber space for enhanced processing capability in the fabrication of microelectronic devices. In one embodiment, a physical-vapor deposition target offset from the processing chamber central axis, such as a target having an annular shape and central opening, deposits a material on a substrate while leaving the central region of the processing chamber available for other deposition techniques, including a centrally located sputtering target, CVD showerhead, or ion source. Alternatively, a collimator divides a processing chamber into sub-chambers and allows energetic species from a PVD target or ion source to pass to a substrate located in a separate sub-chamber for interaction with a CVD precursor without mixing the precursor and the plasma associated with the PVD or ion processes. The apparatus supports deposition of material from a single precursor in a manner that mimics atomic layer deposition since the process of subjecting a precursor to energetic species, such as ions or material atoms, allows disassociation of material from the precursor at lower temperatures.
    • 用于沉积薄膜材料层的装置和方法提供了改进的处理室空间的使用,用于在微电子器件的制造中增强处理能力。 在一个实施例中,从处理室中心轴偏移的物理气相沉积靶,例如具有环形形状和中心开口的靶,将材料沉积在衬底上,同时使处理室的中心区域可用于其它沉积技术 ,包括中心位置的溅射靶,CVD喷头或离子源。 或者,准直器将处理室划分为子室,并且允许来自PVD靶或离子源的能量物质传递到位于单独子室中的衬底,用于与CVD前体相互作用,而不混合前体和与 PVD或离子工艺。 该设备支持以模拟原子层沉积的方式从单一前体沉积材料,因为使前体经受高能物质如离子或材料原子的过程允许材料在较低温度下与前体分离。
    • 56. 发明授权
    • Method for planarized deposition of a material
    • 材料平面沉积方法
    • US06245655B1
    • 2001-06-12
    • US09285162
    • 1999-04-01
    • Mehrdad M. Moslehi
    • Mehrdad M. Moslehi
    • H01L2144
    • H01L21/76879H01L21/7688
    • A method for selective deposition of a material, such as copper, to form planarized inlaid device interconnect structures, the method suppressing deposition of the material at other than the defined interconnect inlaid metal line trenches and via plug holes. Once a formation is filled with metallization material, deposition is automatically ceased in situ to form a globally planarized interconnect structure. In one embodiment, a blocking agent layer inhibits material nucleation and deposition at the substrate surface plane until the formation is filled, and then flows over the filled inlaid metallization structure to cease further material deposition and to form a globally planarized surface without a need for chemical-mechanical polishing of the metallization material. In another embodiment, an enhancement agent is provided within formations to reduce material nucleation time, resulting in selective deposition of the material proximate to the enhancement agent layer within trenches and holes. A nucleation suppressing agent can be included in the deposition ambient to increase nucleation delay and to suppress material deposition over the patterned field regions and on the formation sidewalls, thus limiting material deposition to within the trenches or holes from the bottom upward. Placement of the enhancement agent layer at the bottom of a device formation features promotes material deposition from the bottoms of the formation features up towards the substrate field surface plane, resulting in improved void-free filling of the via holes and trenches with large-grain inlaid metal for globally planarized interconnect fabrication.
    • 用于选择性沉积诸如铜的材料以形成平面化的嵌入式器件互连结构的方法,该方法抑制材料在限定的互连镶嵌的金属线沟槽之外的沉积以及通过插塞孔。 一旦地层填充有金属化材料,就会自动停止沉积,以形成一个全局平面化的互连结构。 在一个实施方案中,阻挡剂层抑制材料在基材表面平面上的成核和沉积,直到形成被填充,然后流过填充的镶嵌金属化结构以停止进一步的材料沉积并形成全局平坦化的表面而不需要化学 - 金属化材料的机械抛光。 在另一个实施方案中,在地层内提供增强剂以减少材料成核时间,导致材料在沟槽和孔内靠近增强剂层的选择性沉积。 成核抑制剂可以包括在沉积环境中以增加成核延迟并抑制在图案化的场区域和形成侧壁上的材料沉积,从而将材料沉积限制在从底部向上的沟槽或孔内。 增强剂层位于器件形成特征底部的位置促进从地层特征的底部到衬底场表面平面的材料沉积,从而改善了通孔和沟槽的无空隙填充,其中大颗粒镶嵌 金属用于全球平面化互连制造。
    • 58. 发明授权
    • Apparatus for inductively-coupled-plasma-enhanced ionized physical-vapor
deposition
    • US6136165A
    • 2000-10-24
    • US978933
    • 1997-11-26
    • Mehrdad M. Moslehi
    • Mehrdad M. Moslehi
    • C23C14/04C23C14/35C23C14/40C23C14/54H01J37/32H01J37/34C23C14/00
    • H01J37/321C23C14/046C23C14/35C23C14/358C23C14/54H01J37/34
    • A system and related method are disclosed for performing inductively-coupled-plasma-enhanced ionized physical-vapor deposition process for depositing a material layer on a work piece such as a semiconductor substrate or a thin-film head substrate. Within a PVD process chamber, a plurality of inductive antenna segments axially surround a region between the PVD target/cathode assembly and the work piece. The inductive antenna segments are arranged cylindrically around (or conformlly with respect to the physical-vapor deposition target/cathode) and aligned substantially vertically with respect to the target/cathode assembly and/or the work piece. A first radio-frequency (RF) power source provides electrical power to half of the antenna segments to create a first inductively-coupled plasma source, a second RF power source provides electrical power to the remaining antenna segments to create a second inductively-coupled-plasma source. The two inductively-coupled-plasma sources are operated together to produce a multi-zone inductively-coupled-plasma source that generates a rotating inductively coupled magnetic field for uniform high-density PVD plasma generation. The system and method of this invention can be used to produce a much higher ionization ratio for the sputter species to allow ionized PVD collimation or programmable (adjustable) electrical collimation for improved step coverage and bottom coverage depositions on substrates with patterned high-aspect-ratio topography features. Moreover, the system and method of this invention can be used to perform PVD processes at reduced operating pressures (down to 0.1 mTorr or less) with stable ICP-assisted plasma generation. Furthermore, the system and method of this invention can be used to enable very repeatable depositions of ultrathin layers by providing a capability to generate and sustain a highly stable PVD plasma medium using a multi-zone ICP source and allowing the use of reduced PVD target power levels to enable reduced deposition rates.