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    • 12. 发明授权
    • Etching method and etching apparatus
    • 蚀刻方法和蚀刻装置
    • US06399517B2
    • 2002-06-04
    • US09281689
    • 1999-03-30
    • Kenji YokomizoTom Williams
    • Kenji YokomizoTom Williams
    • H01L21302
    • H01L21/67086H01L21/31111
    • An etching method and an etching apparatus are provided. Silicon (Si) from surfaces semiconductor wafers W dissolves into an etching liquid E stored in a process bath 10. On detection of the concentration of silicon by a concentration sensor 50, the etching liquid E in the process bath 10 is discharged while leaving a part of the etching liquid when the Si concentration in the etching liquid E reaches a designated concentration. After that, a new etching liquid of substantially equal to an amount of the discharged etching liquid E is supplied into the process bath 10 and added to the etching liquid remaining in the bath 10. Consequently, it is possible to restrict the etching rate just after the exchange of etching liquid from rising excessively.
    • 提供蚀刻方法和蚀刻装置。 从表面半导体晶片W的硅(Si)溶解到存储在处理槽10中的蚀刻液体E.在通过浓度传感器50检测到硅的浓度时,处理浴10中的蚀刻液体E被排出, 当蚀刻液体E中的Si浓度达到指定浓度时, 之后,将基本上等于排出的蚀刻液体E的量的新的蚀刻液供给到处理槽10中,并与残留在槽10中的蚀刻液相加。因此,可以限制刚好在 蚀刻液的交换过度上升。
    • 13. 发明授权
    • Processing vessel for a wafer washing system
    • 晶圆清洗系统的加工容器
    • US5327921A
    • 1994-07-12
    • US26016
    • 1993-03-04
    • Shouri MokuoKenji YokomizoOsamu Tanaka
    • Shouri MokuoKenji YokomizoOsamu Tanaka
    • H01L21/00B08B3/04
    • H01L21/67057Y10S134/902
    • A processing vessel suitable for use with a washing system intended to wash a plurality of wafers. The processing vessel includes a washing solution supply source, a circulation pump, a filter, a main vessel portion provided with inlets in the bottom thereof, a boat for holding the plurality of wafers in the center area of the main vessel portion and a flow control assembly arranged between the inlets and the wafers. The flow control assembly includes a scattering plate for scattering washing solution, which is introduced into the main vessel portion through the inlets, in the horizontal direction, and guiding passages through which the washing solution introduced through the inlets is made to have a substantially laminar flow and is guided into the center area of the main vessel portion. The guiding passages are formed by intervals between side plates and the scattering plate and by a plurality of apertures in the scattering plate. These guiding passages enable most of the washing solution to positively flow through spaces between the adjacent wafers. The flow control assembly also include a flow rate reducing section for reducing the amount of the washing solution which flows along the peripheral area of the wafers.
    • 适于与洗涤系统一起使用以用于洗涤多个晶片的处理容器。 处理容器包括洗涤液供给源,循环泵,过滤器,在其底部设有入口的主容器部分,用于将多个晶片保持在主容器部分的中心区域中的船,以及流量控制 组件布置在入口和晶片之间。 流量控制组件包括用于散射洗涤溶液的散射板,其通过入口沿水平方向被引入主容器部分中,并且引导通道使通过入口引入的洗涤溶液具有基本层流 并被引导到主容器部分的中心区域。 引导通道由侧板和散射板之间的间隔和散射板中的多个孔形成。 这些引导通道使得大部分洗涤液能够积极地流过相邻晶片之间的空间。 流量控制组件还包括用于减少沿着晶片的周边区域流动的洗涤溶液的量的流量减小部分。
    • 19. 发明授权
    • Substrate processing method
    • 基板加工方法
    • US06558476B2
    • 2003-05-06
    • US09777106
    • 2001-02-05
    • Kenji Yokomizo
    • Kenji Yokomizo
    • B08B304
    • H01L21/67057H01L21/67051Y10S134/902
    • A substrate processing method of the present invention prevents the reattachment of particles to substrates, such as semiconductor wafers, when processing and cleaning the substrates by immersing the substrates held in a vertical attitude in a processing liquid and a cleaning liquid. After processing the substrates in the processing liquid, they are drawn out from the processing liquid. Then, lower parts of the processed substrates are immersed in the cleaning liquid and temporarily kept stationary in the cleaning liquid. Alternatively, the cleaning liquid is sprayed onto the lower parts of the processed substrates. After a predetermined time, the substrates are immersed entirely in the cleaning liquid.
    • 本发明的基板处理方法通过将以垂直姿势保持的基板浸渍在处理液体和清洗液中来处理和清洁基板时,防止颗粒重新附着到诸如半导体晶片的基板上。 处理液中的基材后,从处理液中取出。 然后,将处理后的基板的下部浸渍在清洗液中,暂时保持在清洗液中。 或者,将清洁液体喷涂到被处理基板的下部。 在预定时间之后,基板全部浸没在清洗液中。