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    • 105. 发明申请
    • Chemical vapor deposition plasma process using an ion shower grid
    • 使用离子淋浴网格的化学气相沉积等离子体工艺
    • US20050214477A1
    • 2005-09-29
    • US10873485
    • 2004-06-22
    • Hiroji HanawaTsutomu TanakaKenneth CollinsAmir Al-BayatiKartik RamaswamyAndrew Nguyen
    • Hiroji HanawaTsutomu TanakaKenneth CollinsAmir Al-BayatiKartik RamaswamyAndrew Nguyen
    • C23C16/00C23C16/40C23C16/452C23C16/517
    • C23C16/452C23C16/402C23C16/517
    • A chemical vapor deposition process is carried out in a reactor chamber with an ion shower grid that divides the chamber into an upper ion generation region and a lower process region, the ion shower grid having plural orifices oriented in a non-parallel direction relative to a surface plane of the ion shower grid. A workpiece is placed in the process region facing the ion shower grid, the workpiece having a workpiece surface generally facing the surface plane of the ion shower grid. A gas mixture is furnished comprising deposition precursor species into the ion generation region and the process region is evacuated at an evacuation rate sufficient to create a pressure drop across the ion shower grid from the ion generation region to the process region whereby the pressure in the ion generation region is at least several times the pressure in the process region. A layer of material of a desired thickness is deposited on the workpiece by: (a) applying plasma source power to generate a plasma of the deposition precursor species in the ion generation region, and (b) applying a grid potential to the ion shower grid to create a flux of ions from the plasma through the grid and into the process region.
    • 在具有离子喷淋网格的反应室中进行化学气相沉积工艺,该离子喷淋网格将室分成上部离子产生区域和下部工艺区域,离子喷淋格栅具有相对于一个非平行方向取向的多个孔口 离子淋浴网格的表面。 工件放置在面向离子喷淋格栅的工艺区域中,工件具有大致面向离子喷淋栅格的表面的工件表面。 配备气体混合物,其包括沉积前体物质进入离子产生区域,并且处理区域以足以在从离子产生区域到过程区域的离子喷淋网格上产生压降的抽空速率抽真空,由此离子中的压力 发生区域至少是过程区域压力的几倍。 通过以下步骤沉积所需厚度的一层材料:(a)施加等离子体源功率以在离子产生区域中产生沉积前体物质的等离子体,和(b)将栅格电位施加到离子喷淋栅格 以从等离子体中产生离子通过网格并进入过程区域。
    • 110. 发明授权
    • Externally excited multiple torroidal plasma source
    • 外激发多环形等离子体源
    • US06494986B1
    • 2002-12-17
    • US09636435
    • 2000-08-11
    • Hiroji HanawaYan YeKenneth S CollinsKartik RamaswamyAndrew NguyenTsutomu Tanaka
    • Hiroji HanawaYan YeKenneth S CollinsKartik RamaswamyAndrew NguyenTsutomu Tanaka
    • H05H100
    • H01J37/321H01J37/32082
    • A plasma reactor for processing a workpiece, including an enclosure defining a vacuum chamber, a workpiece support within the enclosure facing an overlying portion of the enclosure, the enclosure having at least first and second pairs of openings therethrough near generally opposite sides of the workpiece support. At least first and second hollow conduits are connected to respective pairs of the openings to provide at least first and second closed torroidal paths through the respective conduits and extending between respective pairs of the openings across the wafer surface. A process gas supply is coupled to the interior of the chamber for supplying process gas to the torroidal paths. Coil antennas are coupled to RF power sources and inductively coupled to the interior of the hollow conduits and capable of maintaining a plasma in the torroidal paths.
    • 一种用于处理工件的等离子体反应器,包括限定真空室的外壳,位于所述外壳内的面向所述外壳的上部的工件支撑件,所述外壳具有穿过所述工件支撑件的大体相对侧的至少第一和第二对开口 。 至少第一和第二空心管道连接到相应的一对开口,以提供至少第一和第二封闭的环形路径穿过相应的导管并且在相应的成对开口之间跨越晶片表面延伸。 工艺气体供应件连接到室的内部,用于将工艺气体供应到环形路径。 线圈天线​​耦合到RF功率源,并且感应耦合到中空导管的内部并且能够将等离子体保持在环形路径中。