摘要:
A method of manufacturing a semiconductor device using a polishing apparatus is provided. A top ring holding a wafer is arranged on a pad. A polishing chemical liquid supply line for supplying a polishing chemical liquid is arranged above the pad in a direction ahead of rotation with respect to the top ring. Around the center of rotation of the pad, a partition plate having a columnar side surface is arranged. Above the pad on a side which goes away from the top ring when the pad is rotated, a polishing chemical liquid draining mechanism is arranged extending continuously from the partition plate to the outer periphery of the pad. Accordingly, a polishing apparatus is obtained by which the amount of polishing of the surface to be polished of the semiconductor substrate is stabilized and generation of microscratches on the surface to be polished can be suppressed.
摘要:
There is provided a heating controlling device having: a receiving section receiving heating instructions for plural heaters; and a controller that, when the receiving section receives a heating instruction to heat another heater while two or more heaters other than the heater for which the heating instruction is received are heating, stops heating of the heaters that are heating, after a first predetermined time period elapses from the control to stop heating, starts heating of the heater for which the heating instruction is received, and each time a number of second predetermined time periods elapses from the control to start heating, restarts heating, on the basis of predetermined priority rankings, of the heaters that were controlled to stop heating.
摘要:
In this invention, an EMF oxygen sensor is subjected to an activation process applying unidirectional voltage between an atmosphere electrode and an exhaust electrode thereof. A control device controlling the oxygen sensor in which a voltage was applied with the atmosphere electrode being positive, additionally applies unidirectional voltage between the electrodes to make the atmosphere electrode positive, for example, when the oxygen sensor was used under an environment in which the air-fuel ratio of the internal combustion engine was rich relative to the theoretical air-fuel ratio. Conversely, A control device controlling the oxygen sensor in which a voltage was applied to make the atmosphere electrode negative, additionally applies unidirectional voltage between the electrodes to make the atmosphere electrode negative, for example, when the oxygen sensor was used under an environment in which the air-fuel ratio was lean relative to the theoretical air-fuel ratio.
摘要:
It is an object of the present invention to provide a gas concentration detection apparatus that is capable of forming an accurate activity judgment when a gas concentration detection cell begins to detect gas concentration with high accuracy. When warm-up begins at time t0 in a NOx concentration detection apparatus that achieves NOx concentration detection with a NOx sensor cell after excess oxygen is discharged by an oxygen pump cell, a NOx sensor cell output begins to rise at time t1. Subsequently, at time t2, an oxygen pump cell output begins to rise. An inflection point appearing in the NOx sensor cell output is then located. At time t5 at which the inflection point appears, an activity judgment about the NOx sensor cell is formed.
摘要:
An abnormality diagnostic apparatus for a gas sensor includes a NOx sensor includes a main pump cell, an auxiliary pump cell, and a detection cell. The apparatus diagnoses at least one of the detection cell, the main pump cell, and the auxiliary pump cell for an abnormality, based on at least one of a rising characteristic of a NOx output of the detection cell immediately after a start of detection of the NOx output, its peak value, and its subsequent falling characteristic. An abnormality of the detection cell is determined if a speed with which the NOx output rises is small; an abnormality of at least one of the main pump cell and the auxiliary pump cell is determined if a speed with which the NOx output falls is small; and an abnormality of the detection cell is determined if the peak value of the NOx output is small.
摘要:
An object of the present invention enables provision of an optimum shape design method in which an optimum shape of a cushioning material used in cushioning packaging can easily and adequately be designed, and an optimum shape design system in which the optimum shape design method is used. In a configuration of the optimum shape design system is characterized by providing an optimizing control unit 2a. The optimizing control unit 2a detects a correlation among CAD data M of a cushioning material 4 defined by a CAD unit 2b, a mechanical response amount detected by a mechanical response amount calculation unit 2c, manufacturing decision information detected by a manufacturing decision detection unit 2d, and manufacturing cost information detected by a cost calculation unit 2e. Then, the optimizing control unit 2a updates the CAD data M of the cushioning material 4 until an optimum shape of the cushioning material 4 is detected based on the correlation. In the optimum shape, the mechanical response amount satisfies design conditions of the cushioning material 4, the cushioning material 4 is producible, and a minimum manufacturing cost is obtained. Then, the optimizing control unit 2a updates the correlation based on the changed CAD data M, and the optimizing control unit 2a detects the optimum shape of the cushioning material 4 based on the updated correlation.
摘要:
An object of the present invention enables provision of an optimum shape design method in which an optimum shape of a cushioning material used in cushioning packaging can easily and adequately be designed, and an optimum shape design system in which the optimum shape design method is used. In a configuration of the optimum shape design system is characterized by providing an optimizing control unit 2a. The optimizing control unit 2a detects a correlation among CAD data M of a cushioning material 4 defined by a CAD unit 2b, a mechanical response amount detected by a mechanical response amount calculation unit 2c, manufacturing decision information detected by a manufacturing decision detection unit 2d, and manufacturing cost information detected by a cost calculation unit 2e. Then, the optimizing control unit 2a updates the CAD data M of the cushioning material 4 until an optimum shape of the cushioning material 4 is detected based on the correlation. In the optimum shape, the mechanical response amount satisfies design conditions of the cushioning material 4, the cushioning material 4 is producible, and a minimum manufacturing cost is obtained. Then, the optimizing control unit 2a updates the correlation based on the changed CAD data M, and the optimizing control unit 2a detects the optimum shape of the cushioning material 4 based on the updated correlation.
摘要:
In this invention, an EMF oxygen sensor is subjected to an activation process applying unidirectional voltage between an atmosphere electrode and an exhaust electrode thereof. A control device controlling the oxygen sensor in which a voltage was applied with the atmosphere electrode being positive, additionally applies unidirectional voltage between the electrodes to make the atmosphere electrode positive, for example, when the oxygen sensor was used under an environment in which the air-fuel ratio of the internal combustion engine was rich relative to the theoretical air-fuel ratio. Conversely, a control device controlling the oxygen sensor in which a voltage was applied to make the atmosphere electrode negative, additionally applies unidirectional voltage between the electrodes to make the atmosphere electrode negative, for example, when the oxygen sensor was used under an environment in which the air-fuel ratio was lean relative to the theoretical air-fuel ratio.
摘要:
An oxygen amount (an oxygen storage amount OSA) stored by metal cerium during a storage cycle is obtained based on an output value of an A/F sensor in a time period immediately before an exhaust air-fuel ratio (a downstream side A/F) detected by the A/F sensor shifts to a lean region, and degradation relating to OSC of the three-way catalyst is detected. In the storage cycle, a target air-fuel ratio is set so that an air-fuel ratio of exhaust emission flowing into an S/C changes from rich to lean. Therefore, the downstream side A/F shifts from stoichiometry to the lean region at a time after reaching stoichiometry. When the three-way catalyst degrades, the downstream side A/F shifts to the lean region from stoichiometry at a time. Therefore, the calculated oxygen storage amount OSA becomes extremely smaller as compared with that at a normal time.
摘要:
A correction device for an air/fuel ratio sensor in the present invention, the sensor issuing an output according to an air/fuel ratio and installed on the downstream from catalyst of the exhaust passage, has air/fuel ratio control means for controlling an air/fuel ratio of an exhaust gas on the upstream side from a catalyst to switch between a rich air/fuel ratio which is richer and a lean air/fuel ratio which is leaner than a stoichiometric air/fuel ratio. Moreover, correction means for correcting an output of the sensor in accordance with a difference between the output of the sensor during a predetermined period during air/fuel ratio control by the air/fuel ratio control means, and a reference output corresponding to a stoichiometric air/fuel ratio, is provided.