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    • 5. 发明授权
    • Method and apparatus for low pressure chemical vapor deposition
    • 低压化学气相沉积的方法和装置
    • US4619844A
    • 1986-10-28
    • US693401
    • 1985-01-22
    • John M. PierceWilliam I. Lehrer
    • John M. PierceWilliam I. Lehrer
    • C23C16/44C23C16/448C23C16/455C23C16/00B05C11/00
    • C23C16/4485
    • A method of introducing a controlled flow of vapor from a high pressure sublimation chamber into a low pressure vapor deposition reactor, said vapor being derived from solid source material preferably, but not necessarily, having a vapor pressure above about one (1) Torr at a temperature not exceeding about 350.degree. C. The method comprises controllably heating the source material to a temperature sufficient to produce vapor therefrom at a desired pressure, and then controllably transferring the vapor through vapor transmission means to the vapor deposition reactor. During such transfer, the transmission means is maintained at a temperature sufficient to prevent condensation of the vapor therein during transfer. The vapor is delivered to the reactor in a pure state and is not mixed with any carrier medium.
    • 将受控的蒸汽流从高压升华室引入低压气相沉积反应器的方法,所述蒸汽源自固体源材料,优选但不一定具有高于约一(1)乇的蒸气压, 温度不超过约350℃。该方法包括可控地将源材料加热到足以在所需压力下产生蒸汽的温度,然后通过蒸气传输装置将蒸汽可控地转移到气相沉积反应器。 在这种转移期间,传动装置保持在足以防止在传送期间蒸气冷凝的温度。 蒸汽以纯的状态输送到反应器中,并且不与任何载体介质混合。