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    • 7. 发明授权
    • Batch type heat treatment system, method for controlling same, and heat treatment method
    • 批式热处理系统,其控制方法和热处理方法
    • US06730885B2
    • 2004-05-04
    • US09897908
    • 2001-07-05
    • Fujio SuzukiWenling WangKoichi SakamotoMoyuru YasuharaSunil ShahPradeep Pandey
    • Fujio SuzukiWenling WangKoichi SakamotoMoyuru YasuharaSunil ShahPradeep Pandey
    • H05B302
    • H01L21/67248H01L21/67109
    • There is provided a batch type heat treatment system, control method and heat treatment method capable of appropriately coping with a multi-product small-lot production. A reaction tube 2 comprises a plurality of heaters 31 through 35 and a plurality of temperature sensors, and houses therein a wafer boat 23. A control part 100 stores therein many mathematical models for estimating (calculating) the temperature of wafers W in the reaction tube 2, in accordance with the number and arranged position of the wafers W mounted on the wafer boat 23, and many target temperature trajectories. If the wafer boat 23 is loaded in the reaction tube 2, a mathematical model and a target temperature trajectory corresponding to the number and arranged position of the mounted wafers W are read. If a deposition process is started, the output of a temperature sensor S and the model are used for estimating the temperature of the wafers W in the reaction tube 2, and the powers to be supplied to the heaters 31 through 35 are separately controlled so that the estimated temperature approaches the target temperature trajectory.
    • 提供能够适当应对多产品小批量生产的批式热处理系统,控制方法和热处理方法。反应管2包括多个加热器31至35和多个温度传感器,以及 在其中容纳晶片舟23.控制部分100存储许多用于根据安装在晶片舟23上的晶片W的数量和布置位置来估计(计算)反应管2中的晶片W的温度的数学模型 ,以及许多目标温度轨迹。 如果晶片舟23装载在反应管2中,则读取与安装的晶片W的数量和排列位置对应的数学模型和目标温度轨迹。 如果开始沉积工艺,则使用温度传感器S和模型的输出来估计反应管2中的晶片W的温度,并且分别控制供给到加热器31至35的功率,使得 估计的温度接近目标温度轨迹。
    • 8. 发明授权
    • Thermal reactor optimization
    • 热反应器优化
    • US5517594A
    • 1996-05-14
    • US324416
    • 1994-10-17
    • Sunil C. ShahPradeep Pandey
    • Sunil C. ShahPradeep Pandey
    • C23C16/52H01L21/00H05B1/02C23C14/54
    • H01L21/67248C23C16/52
    • A system for controlling a thermal reactor is disclosed that characterizes the thermal reactor with a reactor model that indicates behavior of the thermal reactor and of a load contained in the thermal reactor and that accounts for interaction among a set of heating zones of the thermal reactor. An online reactor model is then determined that estimates the thermal behavior of the load based upon an online input power to the thermal reactor and upon an online temperature indication from the thermal reactor. A time varying temperature and reactant flow recipe is determined that minimizes end of run parameters on the load. A multi-variable controller is employed to minimize temperature deviations of the load from a predetermined temperature recipe or time varying trajectory.
    • 公开了一种用于控制热反应器的系统,其特征在于用反应器模型表征热反应器,该反应器模型指示热反应器和包含在热反应器中的负载的行为,并且考虑到热反应器的一组加热区之间的相互作用。 然后确定在线反应器模型,其基于来自热反应堆的在线输入功率以及来自热反应器的在线温度指示来估计负载的热性能。 确定时间变化的温度和反应物流动配方,其最小化负载上的运行参数的结束。 使用多变量控制器来使负载与预定温度配方或时变轨迹的温度偏差最小化。