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    • 5. 发明授权
    • Reactant gas ejector head
    • 反应物气体喷射头
    • US5950925A
    • 1999-09-14
    • US948579
    • 1997-10-10
    • Yukio FukunagaHiroyuki ShinozakiKiwamu TsukamotoMasao Saitoh
    • Yukio FukunagaHiroyuki ShinozakiKiwamu TsukamotoMasao Saitoh
    • C23C16/44C23C16/455C23C16/00
    • C23C16/45574C23C16/45512C23C16/45565C23C16/4557C23C16/45572
    • A reactant gas ejector head enables a process gas mixture of a uniform concentration and composition to be delivered to the surface of a substrate in a stable and uniform thermodynamic state by preventing premature reactions to occur along the gas delivery route. The reactant gas ejector head comprises an ejection head body having a back plate and a nozzle plate for defining a gas mixing space therebetween. The nozzle plate has numerous gas ejection nozzles. A gas supply pipe is communicated with the ejection head body through a center region of the back plate so as to separately introduce at least two types of gaseous substances into the mixing space. Gas distribution passages are formed between the back plate and the nozzle plate in such a way as to guide the at least two types of gaseous substances from the gas supply pipe to be directed separately towards peripheral regions of the gas mixing space.
    • 反应物气体喷射头能够使均匀浓度和组成的工艺气体混合物通过防止沿气体输送路线发生过早反应而以稳定和均匀的热力学状态输送到基底表面。 反应物气体喷射头包括具有背板和用于限定其间的气体混合空间的喷嘴板的喷射头本体。 喷嘴板具有许多气体喷射喷嘴。 气体供给管通过背板的中心区域与喷射头本体连通,以将至少两种类型的气态物质分别引入混合空间。 在背板和喷嘴板之间形成气体分配通道,以将来自气体供给管的至少两种类型的气体物质引导到气体混合空间的周边区域。