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    • 1. 发明授权
    • Platen for electrostatic wafer clamping apparatus
    • 压板用于静电晶片夹紧装置
    • US06660665B2
    • 2003-12-09
    • US10137790
    • 2002-05-01
    • Hiroaki YanagidaHideaki MatsubaraYoshiki OkuharaShoji AokiNaoki KawashimaBruce T. WilliamsToshio Uehara
    • Hiroaki YanagidaHideaki MatsubaraYoshiki OkuharaShoji AokiNaoki KawashimaBruce T. WilliamsToshio Uehara
    • H02N1300
    • H02N13/00H01L21/6833Y10T279/23Y10T428/24917
    • A platen for electrostatic wafer clamping apparatus comprising a platen body of dielectric material and grains of electrically conductive material diffused in the dielectric material so that the platen has a relatively large electrostatic capacitance due to the diffusion of the conductive grains with the result that the platen provides an increased clamping force regardless of humidity. In accordance with another aspect of the invention, the thickness of the platen body can be decreased by an amount sufficient to maintain a constant clamping force with reduced applied voltage, to eliminate any residual voltage on the platen and to increase the speed of wafer release. The grains of electrically conductive material are present in an amount of from about 2.5 percent to about 15.0 percent of the volume of the platen body, and the grains of electrically conductive material are selected from the group consisting of carbonated transition metals, nitrified transition metals and carbonated grains. The dielectric material preferably is Al2O3, and the grains of electrically conductive material preferably are TiC and preferably in an amount of about 5% of the volume of the platen.
    • 一种用于静电晶片夹紧装置的压板,包括电介质材料的压板体和导电材料颗粒在电介质材料中扩散,使得压板由于导电颗粒的扩散而具有相对较大的静电电容,结果是压板提供 增加夹紧力,而不管湿度如何。 根据本发明的另一方面,压板体的厚度可以减小足够的量以保持具有降低的施加电压的恒定夹紧力,以消除压板上的任何残余电压并增加晶片释放的速度。 导电材料的颗粒以压板体的体积的约2.5%至约15.0%的量存在,并且导电材料颗粒选自碳酸过渡金属,硝化过渡金属和 碳酸化谷物。 电介质材料优选为Al 2 O 3,导电材料的颗粒优选为TiC,优选为压板体积的约5%。
    • 5. 发明申请
    • Substrate processing method of and substrate processing apparatus for freezing and cleaning substrate
    • 用于冷冻和清洁基板的基板处理方法和基板处理装置
    • US20060266382A1
    • 2006-11-30
    • US11434322
    • 2006-05-11
    • Hideaki Matsubara
    • Hideaki Matsubara
    • B08B7/00B08B3/00
    • B08B3/10B08B7/0014B08B7/0092C03C23/0075H01L21/02052H01L21/67057Y10S134/902
    • A substrate immersed in pure water held inside a processing bath disposed to a cleaning unit 1 and accordingly washed, as it bears an aqueous film on its surface, is transported by a substrate transportation mechanism 3 to a spin-processing unit 2. The substrate rotates in the spin-processing unit 2, thereby adjusting the thickness of the aqueous film on the substrate surface. As the aqueous film is then frozen, the volume of the aqueous film expands, adhesion between the substrates and particles adhering to the substrate surface becomes weak, or further the particles are separated from the substrate surface. The substrate transportation mechanism 3 transports thus frozen substrate to the cleaning unit 1 from the spin-processing unit 2, and the substrate is immersed in a processing liquid held inside the processing bath. The overflowing processing liquid thaws and removes the aqueous film, and particles on the substrate surface are discharged outside the substrate.
    • 浸渍在保持在清洗单元1内的处理槽内的纯水中的基板,由于在其表面承载水性膜而被洗涤的基板通过基板输送机构3输送到旋转处理单元2。 基板在旋转处理单元2中旋转,由此调整基板表面上的水性膜的厚度。 随着水性膜冷冻,水性膜的体积膨胀,基材和附着于基材表面的颗粒之间的粘合力变弱,或者进一步使颗粒与基材表面分离。 基板输送机构3将这样冷冻的基板从旋转处理单元2输送到清洁单元1,并且将基板浸入保持在处理槽内部的处理液中。 溢出的处理液解冻并除去水性膜,并且将基板表面上的颗粒排出到基板外部。