APPARATUS FOR PLASMA CHEMICAL VAPOR DEPOSITION

PURPOSE: To realize an apparatus capable of forming a dense thin film having a low defect density by sufficiently heating a reactional gas near a substrate. CONSTITUTION: This apparatus for plasma chemical vapor deposition is obtained by installing a gas heating pipe 14, arranged in a heater 3 for h...

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Bibliographische Detailangaben
Hauptverfasser: TAKEUCHI YOSHIAKI, KOJO DAIICHI, MURATA MASAYOSHI
Format: Patent
Sprache:eng
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Zusammenfassung:PURPOSE: To realize an apparatus capable of forming a dense thin film having a low defect density by sufficiently heating a reactional gas near a substrate. CONSTITUTION: This apparatus for plasma chemical vapor deposition is obtained by installing a gas heating pipe 14, arranged in a heater 3 for heating a substrate and capable of introducing a reactional gas from a reactional gas introduction pipe 6 and discharging the reactional gas into a space between a high-frequency electrode 2 and the heater 3 for heating the substrate, thereby heating the reactional gas introduced into a reactional vessel 1 with the heater 3 for heating the substrate in passing the reactional gas through the gas heating pipe 14, thereby increasing the diffusion distance of reactional gas radicals adsorbed on the film surface and enabling the formation of a dense thin film having a low defect density in the apparatus for plasma chemical vapor deposition comprising the high-frequency electrode 2 and the heater 3 for heating the substrate, oppositely arranged in the reactional vessel 1 provided with the reactional gas introduction pipe 6 and a vent pipe 7 and forming parallel plate type electrodes.