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    • 6. 发明授权
    • Apparatus for forming functional deposited film by microwave plasma CVD
process
    • 用微波等离子体CVD法形成功能沉积膜的装置
    • US4898118A
    • 1990-02-06
    • US252525
    • 1988-10-03
    • Tsutomu MurakamiMasahiro Kanai
    • Tsutomu MurakamiMasahiro Kanai
    • C23C16/50C23C16/511H01J37/32
    • H01J37/32357C23C16/511
    • Disclosed herein is an apparatus for forming a deposited film by a microwave plasma CVD process comprising introducing a film-forming raw material gas into a reaction vessel capable of being vacuum sealed, and generating a microwave-excited plasma in the reaction vessel to deposit a film on a substrate for film deposition disposed in the reaction vessel. The apparatus comprises a rectangular waveguide for transmitting microwave energy, a pair of microwave cutoff cavities having different cutoff frequencies, the cavities being oppositely disposed on opposite sides of the waveguide, and a reaction vessel disposed to penetrate through the waveguide and the microwave cutoff cavities, wherein a raw material gas inlet is provided at one end of the reaction vessel, and a film deposition space is provided at the other end of the reaction vessel, whereby it is possible to use effectively the plasma generated in the reaction vessel for film deposition without leakage of the plasma into the cavity on the gas inlet side, and to perform stable film deposition with good reproducibility.
    • 本文公开了一种通过微波等离子体CVD法形成沉积膜的装置,包括将成膜原料气体引入能够被真空密封的反应容器中,并在反应容器中产生微波激发等离子体以沉积膜 在设置在反应容器中的用于膜沉积的基板上。 该装置包括用于传输微波能量的矩形波导,具有不同截止频率的一对微波截止腔,空腔相对地设置在波导的相对侧上,反应容器设置成穿过波导和微波截止腔, 其中原料气体入口设置在反应容器的一端,并且在反应容器的另一端设置有膜沉积空间,由此可以有效地利用在反应容器中产生的用于膜沉积的等离子体而不用 将等离子体泄漏到气体入口侧的空腔中,并以良好的再现性进行稳定的膜沉积。