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    • 6. 发明授权
    • Dynamic blending gas delivery system and method
    • 动态混合气体输送系统及方法
    • US06514564B2
    • 2003-02-04
    • US09799644
    • 2001-03-06
    • Alexandre de Almeida BotelhoThomas Anthony Del PratoRobert William Ford
    • Alexandre de Almeida BotelhoThomas Anthony Del PratoRobert William Ford
    • C23C16448
    • B01F15/00344B01F3/026B01F15/00136B01F15/00162B01F15/04B01F2015/062F17C13/04Y02E60/321
    • A dynamic blending gas delivery system and method are disclosed. A blended gaseous mixture produced in accordance with the method is used in chemical vapor deposition tools or similar process tools. One embodiment is a multi-step method for processing a plurality of fluids to form a blended gaseous mixture and supplying the blended gaseous mixture to a distribution header from which the blended gaseous mixture is delivered to at least one tool. The first step is to supply a first fluid. The second step is to heat the first fluid to a temperature where at least some portion of the first fluid is a vapor. The third step is to superheat the vapor portion of the first fluid to a temperature sufficient to avoid condensation of the blended gaseous mixture delivered to the at least one tool. The fourth step is to supply a second fluid. The fifth step is to heat the second fluid to a temperature sufficient to avoid condensation of the superheated vapor portion of the first fluid when the superheated vapor portion comes in contact with the second fluid. The sixth step is to combine the heated second fluid and the superheated vapor portion of the first fluid to form a blended gaseous mixture having desired physical and chemical properties for chemical vapor deposition, epitaxial film growth, or a similar process. The final step is to deliver the blended gaseous mixture to the distribution header. In the preferred embodiment, the first fluid is trichlorosilane and the second fluid is hydrogen.
    • 公开了一种动态混合气体输送系统和方法。 根据该方法制备的混合气体混合物用于化学气相沉积工具或类似的工艺工具中。 一个实施方案是用于处理多种流体以形成混合的气体混合物并将混合的气态混合物供应到分配集流器的多步骤方法,将混合的气体混合物从该混合物输送到至少一个工具。 第一步是提供第一流体。 第二步是将第一流体加热至第一流体的至少一部分是蒸汽的温度。 第三步骤是将第一流体的蒸汽部分过热到足以避免输送到至少一个工具的混合气体混合物冷凝的温度。 第四步是提供第二种流体。 第五步是当第二流体与第二流体接触时,将第二流体加热到足以避免第一流体的过热蒸汽部分冷凝的温度。 第六步骤是将加热的第二流体和第一流体的过热蒸汽部分组合以形成具有用于化学气相沉积,外延膜生长或类似工艺的所需物理和化学性质的混合气体混合物。 最后一步是将混合气体混合物输送到分配头。 在优选实施方案中,第一流体是三氯硅烷,第二流体是氢气。