摘要:
A method for operating a semiconductor processing apparatus that plasma-processes a semiconductor wafer mounted on a stage placed in a container using a plasma generated therein. The method includes setting a temperature of the semiconductor wafer, and controlling an operation of the semiconductor processing apparatus based on information about the temperature of the semiconductor wafer which is set.
摘要:
A plasma processing apparatus includes a vacuum processing vessel constituting a vacuum processing chamber, a processing gas supply unit supplying a processing gas to the vacuum vessel, a plasma generator generating plasma by supplying electromagnetic energy to the vacuum vessel and dissociating the processing gas supplied thereto so as to process a wafer, and a processing chamber surface temperature control unit for controlling the inner surface temperature of the vacuum processing chamber. The control unit controls the inner surface temperature of the vacuum processing chamber based on more than one of (a) an idle time from the termination of an immediately previous lot processing, (b) a processing power of the immediately previous lot processing, (c) a process pressure of the immediately previous lot processing, and (d) a number of wafers being processed of the immediately previous lot processing prior to performing the present wafer processing.
摘要:
An AF control apparatus for a zoom lens system includes a movable lens group serving as a zooming lens group and a focusing lens group in the zoom lens system; a focusing table which stores focusing data for the movable lens group; a zooming table which stores zooming data for the movable lens group, the zooming table having different data from the focusing table; and a driving device for moving the movable lens group in an optical axis direction of the zoom lens system according to data stored in the focusing table and the zooming table.
摘要:
The present invention provides a plasma processing apparatus and processing method capable of maintaining a constant processing profile. The plasma processing apparatus for providing a plasma processing to a wafer placed in a processing chamber comprises a processing vessel 1a constituting the processing chamber 1, process gas supply devices 3, 4 for supplying processing gas to the processing chamber 1, and a plasma generating means 2 for generating plasma by supplying electromagnetic energy to the processing chamber and dissociating the process gas supplied to the processing chamber, wherein the apparatus further comprises a processing chamber surface temperature control unit 15 for controlling the inner surface temperature of the processing chamber, the control unit controlling the temperature by heating the inner surface of the processing chamber by generating plasma in the chamber for a predetermined processing time based on a processing history after terminating a cleaning process and prior to performing the wafer processing.
摘要:
It is an object of the invention to provide a vacuum processing device and a vacuum processing system capable of improving the accuracy for the function of estimating the result of processing of samples based on the monitored values for the processing state of the samples, improving the forecasting accuracy and thus improving the yield of products. The system comprises a function of monitoring processing parameters for samples, a function of estimating the processing characteristics of the samples based on the monitored parameters, a function of conducting communication with a measuring device for measuring the processing state of the samples after processing and a function of updating the measuring conditions by the measuring device in accordance with the processing characteristics of the samples estimated from the information by monitoring.
摘要:
At least one control parameter such as power supplied to a plasma, process pressure, gas flow rate, and radio frequency bias power to a wafer is changed for an extremely short time as compared with an entire plasma processing time, to the extent that such a change does not affect the result of plasma processing on the wafer, to monitor a temporal change of a plasma state which occurs at the time of changing. A signal resulting from the monitoring method is used to control or diagnose the plasma processing, thereby making it possible to accomplish miniature etching works, high quality deposition, surface processing.
摘要:
The object of the present invention is to provide a plasma processing apparatus wherein plasma is generated in process chamber to treat a sample. Said plasma processing apparatus is further characterized in that multiple closely packed through-holes are formed on the plate installed on the UHF antenna arranged opposite to the sample, an optical transmitter is installed almost in contact with the back of the through-holes, and an optical transmission means is arranged on the other end of said optical transmitter, thereby measuring optical information coming from the sample and plasma through optical transmitter and optical transmission means by means of a measuring instrument. No abnormal discharge or particle contamination occur to through-holes even in long-term discharge process, and no deterioration occurs to the optical performance at the end face of the optical transmitter. Said plasma processing apparatus ensures stable and high precision measurement of the state of the surface of sample and plasma for a long time.
摘要:
A gas having an arc current-voltage property that is different from a shielding gas is intermittently added to the shielding gas, an arc current is intermittently changed in proportion to an intermittent chemical composition change of the shielding gas at an arc generation region, and an arc generation point situated at a tip of a welding wire is displaced upwardly or downwardly along a groove of a base metal.
摘要:
The vacuum processing apparatus has an atmospheric loader having a plurality of cassette tables and a transport unit for carrying wafers, a vacuum loader equipped with vacuum wafer-processing chambers and a vacuum transport chamber communicating with the processing chambers via gate valves, and a locking unit provided with a loading lock chamber and unloading lock chambers that have gate valves for connecting the atmospheric transport unit and vacuum transport chamber; wherein two etching chambers, formed by UHF-ECR reactors, are arranged symmetrically with respect to an axial line passing through the middle of the vacuum transport chamber and locking unit, only at the opposite side of the locking unit across the vacuum transport chamber, and at an acute angle with respect to the vacuum transport chamber, and UHF-ECR antennas, almost parallel to the foregoing axial line, are opened at the opposite side to that of the vacuum transport chamber.