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    • 5. 发明专利
    • THIN FILM FORMATION
    • JPS6037722A
    • 1985-02-27
    • JP14503383
    • 1983-08-10
    • KOGYO GIJUTSUIN
    • SHIMADA JIYUICHINAKAMURA NOBUOMATSUBARA SUNAOMATSUBARA HIROKAZUUTAKA MASATOSHI
    • H01L31/04H01L21/205H01L31/0248
    • PURPOSE:To improve response characteristic of a substrate temperature due to introduction of gas, improve uniform heating of a substrate and obtain a homogeneous thin film by having heated at least part of the gas when a thin film is formed on the substrate causing chemical reaction in plural kinds of gases. CONSTITUTION:In a reaction container 21, a discharge electrode 22 and a substrate holder 23 are installed in a specific interval and a substrate 27 on which a thin film is to be formed is mounted on the holder 23. Reaction gas is not flowed into the reaction container 21 and voltage from a high frequency power source 25 is not applied. A heater 24 which is provided on the back of the holder 23 heats the substrate 27 to approx. 250 deg.C. Later, the pressure in the container 21 is made approx. 1 Torr using an exhaust system which is not illustrated and SiH4 gas is supplied from a gas inlet 26 while heated by a heater 27' when the temperature is balanced whereby an amorphous Si film is formed on the substrate 27. In this way, the deposit speed of the Si film is increased and the Si film which has homogenous film quality is obtained.
    • 6. 发明专利
    • PLASMA UTILIZING DEVICE
    • JPS6025224A
    • 1985-02-08
    • JP13199783
    • 1983-07-21
    • KOGYO GIJUTSUIN
    • UTAKA MASATOSHIMURAMATSU SHINICHINAKAMURA NOBUOMATSUBARA SUNAOSHIMADA JIYUICHI
    • H01L31/04H01L21/205H01L31/20
    • PURPOSE:To reduce deterioration of the characteristic of a forming amorphous film according to impurities, and to reduce extremely the contamination and doping of a solar cell from adherends by a method wherein substrate holders are arranged by hanging respectively the bent parts thereof to linear type discharge electrodes, and plasma is generated by applying a high-frequency voltage between the discharge electrodes. CONSTITUTION:Substrates 5 are equipped on substrate holders 4, the holders thereof are hanged to exposing electrodes 6 connected to a high-frequency electric power source E, and put in a core tube 2. After the core tube 2 is exhausted to a vacuum, monosilane of 50cc/min and diborane of 100cc/min are flowed to make pressure to 1Torr, and a high-frequency voltage is applied between the electrode lead wires 8. Accordingly, plasma is generated between the electrodes 4 using both as the substrate holders to form P type amorphous Si layers at 20mm. thickness. Monosilane only is flowed in succession to form an I type layer at 500mm. thickness, monosilane and phosphine of 100cc/ min are flowed finally to form an N type layer at 10mm. thickness, and taken out from a reaction oven. After then, an ITO (indium tin oxide) is evaporated at 100mm. thickness on the surface of the N type layer as a transparently conductive film to manufacture P-I-N structural solar cells.