摘要:
A gate valve for a thin film forming apparatus. The gate valve includes two adjoining low-pressure chambers and a wall separating the two chambers. The wall includes an aperture and a thin plate for covering the aperture. The thin plate is movable in a direction substantially parallel to the plate surface. The gate valve further includes a voltage supply for applying a direct current between the thin plate and the wall.
摘要:
The present invention relates to a wafer succeptor apparatus for mouting and heating a semiconductor wafer provided in a reaction chamber of a semiconductor manufacturing apparatus and the like.A wafer succeptor apparatus according to the present invention is characterized by comprising a heat release supporter for supporting and heating a wafer, a dense coating film deposited on said heat release supporter and a gas discharge part provided in said heat release supporter where said supporter is not coated with said dense coating film for removing any impurity gas involved in said heat release supporter.
摘要:
A gate valve for a thin film forming apparatus. The gate valve includes two adjoining low-pressure chambers and a wall separating the two chambers. The wall includes an aperture and a thin plate for covering the aperture. The thin plate is movable in a direction substantially parallel to the plate surface. The gate valve further includes a voltage supply for applying a direct current between the thin plate and the wall.
摘要:
A method of manufacturing a semiconductor device, and particularly a method of forming a monocrystalline film on a substrate. The method includes the step of forming a conductor layer having a step portion on the surface of a substrate. The step portion includes a lateral face which surrounds the lower surface of the step portion to form a closed loop. After the conductor layer has been formed on the surface of the substrate, a monocrystalline film is formed directly on the substrate. Specifically, the film is formed on the lower surface of the step portion, while a DC potential is applied to the conductor layer.
摘要:
An apparatus for forming a high quality film at high speed includes a wafer susceptor provided wiht a vacuum exhaust system, a stock gas supply system, and a heating mechanism for directly heating the susceptor. A ceramic filter means is disposed in opposite juxtaposed face to face position relative to the wafer susceptor for blowing stock gas in a uniform manner against a wafer. Means for activating the stock gas is provided to thereby increase the probability of adsorption of the stock gas on the wafer surface.
摘要:
A reduced pressure device the reduced pressure chamber of which is constructed of stainless steel, and includes a passivation film formed on the exposed interior surface thereof. The film has a thickness more than 50 .ANG. and is composed of two or more layers. One layer contains mainly chrome oxide formed in the vicinity of the interface of the stainless steel and the passivation film. The other layer contains mainly iron oxide formed in the vicinity of the surface of the passivation film. A passivation film may also be used with a thickness of more than 50 .ANG. and containing mainly a mixture of the chrome oxide and the iron oxide. Lastly a passivation film may also be used with thickness of more than 50 .ANG. and containing mainly chrome oxide.
摘要:
The present invention relates to a semiconductor apparatus adapted to a ultrahigh density integration process. A semiconductor apparatus of the present invention is characterized by including a high concentration impurity layer with the same type of conductivity as that of a semiconductor wafer provided on the back of the semiconductor wafer, and at least one layer of a low resistance electrode provided on said high concentration impurity layer.
摘要:
The reduced pressure surface treatment apparatus according the present invention comprises at least one vacuum chamber and an exhaust unit and a gas supply unit connected thereto, and it is characterized in that it is provided with a holder to hold the specimen, means to bombard the specimen with ions without depositing a thin film on said specimen surface, and means to control kinetic energy of said ions to a small value. The reduced pressure surface treatment method of this invention is characterized in that substances adsorbed on the wafer surface or natural oxide film layers are removed by impinging ions on the wafer surface under a vacuum condition.
摘要:
A semiconductor device comprises metal wirings with its minimum line width of 1 .mu.m or less and on the surface of said metal wiring there is no hillock which has its height equal to or more than 1/4 of the minimum line width of said metal wiring. The main portion of said metal wiring is formed with pure metal, and is supplied in connection portion between the metal wiring and a semiconductor substrate with a barrier layer for preventing any atoms involved in said metal parts from diffusing into the semiconductor substrate.
摘要:
A device is provided for carrying a thin plate-like substrate such as a semiconductor wafer and for controlling the position of the wafer by floating it with an inert gas of low impurity concentration. A transferring unit and a control unit are both respectively provided with gas nozzles for floating a wafer and with a gas exhausting and circulating system. A plurality of transferring and control units are sealingly interconnected. Each control unit has a vacuum suction hole at its control center, and is provided with nozzles for controlling the wafer in the radial and circumferential directions, respectively, and with nozzles for stopping the wafer and for transporting the wafer to the next unit. On the bottom of a control space defined by each control unit, grooves which extend from the vacuum suction hole are formed for improving the positional accuracy of stopping the wafer. The grooves have closed ends which are located inside the periphery of the wafer when the center of the wafer is positioned above and centered on the control center of the control unit.