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    • 5. 发明申请
    • 圧力センサ、圧力制御装置及び圧力式流量制御装置の温度ドリフト補正装置
    • 压力传感器,压力控制器和压力型流量控制器的温度变送器
    • WO2003058187A1
    • 2003-07-17
    • PCT/JP2002/012251
    • 2002-11-22
    • 株式会社フジキン東京エレクトロン株式会社大見 忠弘宇野 富雄中村 修池田 信一土肥 亮介西野 功二松本 篤諮杉山 一彦
    • 大見 忠弘宇野 富雄中村 修池田 信一土肥 亮介西野 功二松本 篤諮杉山 一彦
    • G01L19/04
    • G05D7/0635G01D3/022G01F1/50G01F15/046G01L9/025
    • A pressure sensor, a pressure controller and a flow controller in which the pressure can be detected accurately regardless of temperature variation by correcting temperature drift of the pressure sensor automatically. The temperature drift corrector of a pressure type flow controller comprises an upstream side pressure sensor (10) interposed between an orifice (4) and a control valve (22) and detecting the upstream side pressure P 1 . The pressure type flow controller for controlling flow rate at the orifice (4) by opening/closing the control valve (22) while operating the flow rate at the orifice (4) based on the upstream side pressure P 1 comprises a temperature sensor (14) for measuring the fluid temperature, a memory means (64) for storing the relation between the fluid temperature T and the output drift of the upstream side pressure sensor (10), and means for correcting temperature drift by operating the output drift of the upstream side pressure sensor (10) from the data of the memory means (64) when the fluid temperature T is varied and eliminating the output drift of the upstream side pressure sensor (10) by the output drift thus operated. According to the arrangement, temperature drift of the pressure sensor is corrected automatically and accurate flow control is ensured.
    • 压力传感器,压力控制器和流量控制器,其中通过自动校正压力传感器的温度漂移,可以精确地检测压力,而不管温度变化如何。 压力型流量控制器的温度漂移校正器包括介于孔口(4)和控制阀(22)之间的上游侧压力传感器(10),并且检测上游侧压力P 1> 1。 压力型流量控制器,用于通过在基于上游侧压力P s1 包括用于测量流体温度的温度传感器(14),用于存储流体温度T和上游侧压力传感器(10)的输出漂移之间的关系的存储装置(64),以及用于校正温度漂移的装置 当流体温度T变化时,操作上游侧压力传感器(10)的输出漂移与存储装置(64)的数据,并且消除上游侧压力传感器(10)的输出漂移,由此产生的输出漂移 。 根据该结构,自动校正压力传感器的温度漂移,并且确保精确的流量控制。
    • 7. 发明申请
    • 流量制御装置を備えたガス供給設備からのチャンバーへのガス分流供給方法
    • 从配有流量控制器的气体供应设备供应到气室的气体供应方法
    • WO2003102707A1
    • 2003-12-11
    • PCT/JP2003/000437
    • 2003-01-20
    • 株式会社フジキン東京エレクトロン株式会社杉山 一彦池田 信一西野 功二土肥 亮介上野山 豊己
    • 杉山 一彦池田 信一西野 功二土肥 亮介上野山 豊己
    • G05D7/06
    • G05D7/0664Y10T137/7759Y10T137/7761
    • A method for supplying a specified quantity Q of processing gas while dividing at a desired flow rate ratio Q1/Q2 accurately and quickly from a gas supply facility equipped with a flow controller into a chamber. When a specified quantity Q of gas is supplied while being divided at a desired flow rate ratio Q1/Q2 from a gas supply facility equipped with a flow controller into a pressure reduced chamber C through a plurality of branch supply lines and shower plates fixed to the ends thereof, pressure type division quantity controllers FV1 and FV2 are provided in the plurality of branch supply lines GL1 and GL2. Opening control of both division quantity controllers FV1 and FV2 is started by an initial flow rate set signal from a division quantity control board FRC for fully opening the control valve CV of the pressure type division quantity controller having a higher flow rate and pressures P3' and P3" on the downstream side of the control valve CV are regulated thus supplying a total quantity Q=Q1+Q2 of gas while dividing into the chamber C through orifice holes (3a, 4a) made in shower plates (3, 4) at desired division quantities Q1 and Q2 represented by formulas Q1=C1P3' and Q2=C2P3" (where, C1 and C2 are constants dependent on the cross-sectional area of the orifice hole or the gas temperature on the upstream side thereof).
    • 一种用于在从配备有流量控制器的气体供给设备进入腔室的情况下,以期望的流量比Q1 / Q2精确而快速地分配处理气体的规定量Q的方法。 当通过多个分支供应管线和固定到所述流体控制器的喷淋板以预期的流量比Q1 / Q2从装备有流量控制器的气体供应设备分配到减压室C中时供应指定数量的气体 在多个分支供给线GL1和GL2中设置有压力分离量控制器FV1和FV2。 通过来自分割量控制板FRC的初始流量设定信号来开始分控数量控制器FV1和FV2的打开控制,以完全打开具有较高流量和压力P3'的压力型分配量控制器的控制阀CV,并且 调节控制阀CV的下游侧的P3“被调节,从而通过在喷淋板(3,4)中制造的孔口(3a,4a)分成腔室C,从而提供气体的总量Q = Q1 + Q2, 由公式Q1 = C1P3'和Q2 = C2P3“表示的分割量Q1和Q2(其中C1和C2是取决于孔口的横截面积或其上游侧的气体温度的常数)。