摘要:
In a process of forming a silicon oxide film 116 that constitutes an interlayer insulating film with TEOS as a raw material through the plasma CVD method, the RF output is oscillated at 50 W, and the RF output is gradually increased from 50 W to 250 W (an output value at the time of forming a film) after discharging (after the generation of O2-plasma). A TEOS gas is supplied to start the film formation simultaneously when the RF output becomes 250 W, or while the timing is shifted. As a result, because the RF power supply is oscillated at a low output when starting discharging, a voltage between the RF electrodes can be prevented from changing transitionally and largely.
摘要:
A substrate processing apparatus includes a plurality of evacuable treatment chambers connected to one another via an evacuable common chamber, and the common chamber is provided with means for transporting a substrate between each treatment chamber. More specifically, a substrate processing apparatus includes a plurality of evacuable treatment chambers, at least one of said treatment chambers having a film formation function through a vapor phase reaction therein, at least one of said treatment chambers having an annealing function with light irradiation and at least one of said treatment chambers having a heating function therein. The apparatus also has a common chamber through which said plurality of evacuable treatment chambers are connected to one another, and a transportation means provided in said common chamber for transporting a substrate between each treatment chamber.
摘要:
A silicon oxide film is formed to cover an island non-monocrystalline silicon region by plasma CVD using an organic silane having ethoxy groups (e.g., TEOS) and oxygen as raw materials, while hydrogen chloride or a chlorine-containing hydrocarbon (e.g., trichloroethylene) of a fluorine-containing gas is added to the plasma CVD atmosphere, preferably in an amount of from 0.01 to 1 mol % of the atmosphere so as to reduce the alkali elements from the silicon oxide film formed and to improve the reliability of the film. Prior to forming the silicon oxide film, the silicon region may be treated in a plasma atmosphere containing oxygen and hydrogen chloride or a chlorine-containing hydrocarbon. The silicon oxide film is obtained at low temperatures and this has high reliability usable as a gate-insulating film in a semiconductor device.
摘要:
In forming an insulating film for a thin film transistor (TFT), a thermal oxidation film is formed by oxidation of silicon film at 500.degree. to 700.degree. C. or an insulating film composed mainly of silicon oxide deposited by physical vapor deposition (PVD) or chemical vapor deposition (CVD) is formed so as to cover island-like crystalline silicon, and then the resulting film is annealed at 400.degree. to 700.degree. C., preferably 450.degree. to 650.degree. C. in a highly reactive atmosphere of nitrogen oxide which is photoexcited or photodecomposed by ultraviolet rays. The thus modified silicon oxide film is used as the gate insulating film.
摘要:
An improved liquid crystal device immune to contamination of the liquid crystal is shown. The liquid crystal is isolated from ion sources such as glass substrates, transparent electrodes or so on by means of a nitride layer positioned therebetween.
摘要:
An improved electric device and manufacturing method for the same are described. The device is for example an IC chip clothed in moulding. In advance of the moulding process, the IC chip is coated with silicon nitride in order to protect the IC chip from moisture invaded through cracks or gaps. The coating of silicon nitride is carried out by plasma CVD. Particularly, an AC voltage is applied to the IC chip during deposition for the purpose of obtaining an excellent property of the silicon nitride coating.
摘要:
A liquid crystal device including a unipolar driving source; a pair of substrates, at least one of which is transparent; a chiral smectic liquid crystal layer interposed between the substrates; and an electrode arrangement provided in order to apply an electric field normal to the liquid crystal layer, wherein the opposed inner surfaces of the substrates contiguous to the chiral smectic liquid crystal layer are formed of different materials having different surface energies such that upon application of the unipolar voltage to the chiral smectic liquid crystal, the chiral smectic liquid crystal molecules will be placed in a first state and upon removal of the unipolar voltage, the liquid crystal molecules will be returned to a second state.
摘要:
An improved liquid crystal device which is driven by applying electric field thereon is shown. The liquid crystal is contained in the device as a layer which is separated into pixel and the optical condition of which is changed by the electric field applied. Contiguous to the liquid crystal layer, a ferroelectric film is provided to impart hysteresis to the device.
摘要:
An improved image sensor is described. The sensor includes a photosensitive semiconductor device comprises a glass substrate, a light blocking electrode formed on the glass substrate, a photosensitive semiconductor film formed on the electrode, a transparent electrode. A light window is opened through the semiconductor device. On the light path including the light window, an uneven interface is formed in order that light rays incident on the sensor is modified and reachs the photosensitive semiconductor after reflection on an original.
摘要:
A substrate processing apparatus includes a plurality of evacuable treatment chambers connected to one another via an evacuable common chamber, and the common chamber is provided with means for transporting a substrate between each treatment chamber. More specifically, a substrate processing apparatus includes a plurality of evacuable treatment chambers, at least one of said treatment chambers having a film formation function through a vapor phase reaction therein, at least one of said treatment chambers having an annealing function with light irradiation and at least one of said treatment chambers having a heating function therein. The apparatus also has a common chamber through which said plurality of evacuable treatment chambers are connected to one another, and a transportation means provided in said common chamber for transporting a substrate between each treatment chamber.