摘要:
A system for designing a utility facility includes a state analyzer analyzing operational states of tools included in a production line, an extraction module extracting an operational period and a standby period of each of the tools, a calculator calculating changes in a quantity of utilities consumed by the tools in operation and in standby, based on the operational periods and the standby periods, and a facility design module designing at least any of a utility facility for supplying utilities to the tools and a utility facility for disposing of utilities discharged from the tools.
摘要:
A system for designing a utility facility includes a state analyzer analyzing operational states of tools included in a production line, an extraction module extracting an operational period and a standby period of each of the tools, a calculator calculating changes in a quantity of utilities consumed by the tools in operation and in standby, based on the operational periods and the standby periods, and a facility design module designing at least any of a utility facility for supplying utilities to the tools and a utility facility for disposing of utilities discharged from the tools.
摘要:
A semiconductor device with an electrode wiring structure comprises at least one diffused region provided in a semiconductor substrate, a silicon oxide layer covering the substrate surface, a silicon nitride layer provided on the silicon oxide layer, a through-hole reaching the diffused region through the silicon oxide layer from an upper surface of the silicon nitride layer, a silicon semiconductor layer filled in the through-hole and serving as an electrode wiring layer, and an interconnection layer electrically connected to the diffused region through the silicon semiconductor layer. According to the structure, since the silicon oxide layer is covered with the silicon nitride layer, unwanted contaminations such as phosphorus, boron, etc., previously contained in the silicon oxide layer are not added to the silicon semiconductor layer during its growth process. Therefore, the electrode wiring layer of silicon semiconductor having controlled conductivity can be provided.
摘要:
An apparatus for predicting life expectancy of a rotary machine includes: a load recipe input module acquiring loading conditions of a rotary machine; a characterizing feature input module obtaining characterizing feature data of a rotary machine; and a life expectancy prediction module calculating life expectancy of the rotary machine in conformity with the loading conditions and the characterizing feature data.
摘要:
A semiconductor device with an electrode wiring structure comprises at least one diffused region provided in a semiconductor substrate, a silicon oxide layer covering the substrate surface, a silicon nitride layer provided on the silicon oxide layer, a through-hole reaching the diffused region through the silicon oxide layer from an upper surface of the silicon nitride layer, a silicon semiconductor layer filled in the through-hole and serving as an electrode wiring layer, and an interconnection layer electrically connected to the diffused region through the silicon semiconductor layer. According to the structure, since the silicon oxide layer is covered with the silicon nitride layer, unwanted contaminations such as phosphorus, boron, etc., previously contained in the silicon oxide layer are not added to the silicon semiconductor layer during its growth process. Therefore, the electrode wiring layer of silicon semiconductor having controlled conductivity can be provided.
摘要:
Disclosed is a method for manufacturing a semiconductor device, for example, an MOSFET. According to this method, an n-well region is formed in a predetermined portion of a p-type semiconductor substrate, after which a field oxide film is formed on that portion of the n-well region which is in contact with the p-type semiconductor substrate. Next, a gate oxide film is formed on the p-type semiconductor substrate and the n-well region, and when a polycrystal silicon film is formed on the field oxide film and the gate oxide film. Thereafter, a polycrystal silicon film containing boron is formed on that portion of the above polycrystal silicon film formed on the p-channel MOSFET forming region, a polycrystal silicon film containing phosphorus being formed on that portion of the polycrystal film formed on the n-channel MOSFET forming region. The above-mentioned three polycrystal silicon films are then patterned, thereby to form a p-type gate electrode including the polycrystal silicon on the gate oxide electrode and the polycrystal silicon containing boron, and an n-type gate electrode including the polycrystal silicon film on the gate oxide electrode and the polycrystal silicon film containing phosphorus.
摘要:
An apparatus for predicting life expectancy of a rotary machine includes: a load recipe input module acquiring loading conditions of a rotary machine; a characterizing feature input module obtaining characterizing feature data of a rotary machine; and a life expectancy prediction module calculating life expectancy of the rotary machine in conformity with the loading conditions and the characterizing feature datap.
摘要:
An availability evaluation system of a semiconductor manufacturing line, comprising a unit configured to calculate an incidence probability Xi (i=1 to k) in combination by applying a tool operation probability and a tool stoppage probability to all combinations “k” in which at least a line fabrication availability is not zero, of the combinations of operation and stoppage of tools, and by obtaining a product of the probabilities of all the tools, and a unit configured to, when a product between the incidence probability Xi of a combination and a fabrication availability Yi of the combination is defined as a probability converted fabrication availability with respect to each of the combinations, calculate an availability value of Q=Σ(i=1 to k)X1×Y1/F obtained by dividing a sum of probability converted fabrication availabilities of the combinations by a fabrication availability F at a 100% availability.
摘要:
A semiconductor wafer having an impurity diffusion layer formed in an inner surface of a trench is cleaned. The semiconductor wafer is inserted into a furnace, and NH.sub.3 gas is introduced into the furnace in the low-pressure condition to create an atmosphere in which the temperature is set at 800.degree. C. to 1200.degree. C. and the partial pressures of H.sub.2 O and O.sub.2 are set at 1.times.10.sup.-4 Torr or less. A natural oxide film formed on the inner surface of the trench is removed, and substantially at the same time, a thermal nitride film is formed on the impurity diffusion layer. Then, a CVD silicon nitride film is formed on the thermal nitride film without exposing the thermal nitride film to the outside air in the same furnace. Next, a silicon oxide film is formed on the CVD nitride film. As a result, a composite insulative film formed of the thermal nitride film, CVD silicon nitride film and silicon oxide film is obtained. Then, an electrode for the composite insulative film is formed in the trench.
摘要:
A semiconductor device is manufactured by forming a first insulating film on a surface of a semiconductor substrate of a first conductivity type, and a first nonmonocrystalline silicon film is formed on the first insulating film. A second insulating film is deposited on the first nonmonocrystalline silicon film by CVD, sputtering or molecular beam method. An impurity is then ion-implanted in the first nonmonocrystalline silicon film through the second insulating film. The second insulating film is then removed to expose the surface of the first nonmonocrystalline silicon film doped with the impurity, and a thermal oxide film is formed on the exposed portion of the first nonmonocrystalline silicon film. Subsequently, a second nonmonocrystalline silicon film is formed on the thermal oxide film, and a third insulating film is formed on the second nonmonocrystalline silicon film.