摘要:
In a semiconductor device fabrication apparatus for performing an etching process for a semiconductor wafer having a plurality of films formed on a surface thereof and disposed in a chamber, by using plasma generated in the chamber, a change in light of multi-wavelength from the surface of the semiconductor wafer is measured during a predetermined period of the etching process, and a state of the etching process is judged from the displayed change amount of light of multi-wavelength.
摘要:
The invention provides a plasma processing apparatus for measuring the etching quantity of the material being processed and detecting the end point of etching using optical interference on the surface of a sample being processed, so as to simultaneously realize long life and ensure sufficient light to be received via a light transmitting unit, to enable long term stable operation and to improve the processing accuracy via accurate etching quantity detection. In a plasma processing apparatus for processing a sample being processed by generating plasma between a shower plate and a lower electrode, a detector for detecting light from a surface of the sample being processed via the shower plate includes a light transmitting unit composed of a light guide into which light is entered and a spectroscope for analyzing the light obtained by the light transmitting unit, wherein the end surface of the light transmitting unit through which light is entered is arranged at a distance of five times or greater of the mean free path of gas molecules within the vacuum reactor from the end surface of the shower plate facing the plasma.
摘要:
The invention provides a plasma processing apparatus for measuring the etching quantity of the material being processed and detecting the end point of etching using optical interference on the surface of a sample being processed, so as to simultaneously realize long life and ensure sufficient light to be received via a light transmitting unit, to enable long term stable operation and to improve the processing accuracy via accurate etching quantity detection. In a plasma processing apparatus for processing a sample being processed by generating plasma between a shower plate and a lower electrode, a detector for detecting light from a surface of the sample being processed via the shower plate includes a light transmitting unit composed of a light guide into which light is entered and a spectroscope for analyzing the light obtained by the light transmitting unit, wherein the end surface of the light transmitting unit through which light is entered is arranged at a distance of five times or greater of the mean free path of gas molecules within the vacuum reactor from the end surface of the shower plate facing the plasma.
摘要:
In an optical transfer system, an optical transmission unit generates an optical signal in which respective polarization components are alternately present on a time axis, a time period during which the respective polarization components are simultaneously present on the time axis is substantially zero, and a symbol repetition cycle of optical signals of the respective polarization components becomes Ts, an optical reception unit causes an interference between local oscillation light and a received optical signal and converts an interfered optical signal to an electric signal, and a received electric-signal processing unit performs analog-digital conversion of an electric signal, elimination of a delay difference of Ts/2 between the respective polarized signal components, and adaptive equalization of a distortion other than the delay difference.
摘要:
An image reading apparatus includes a drive unit that is mounted on a carriage having an image reading sensor, which is moved with respect to an original, mounted thereon and moves the carriage. The drive unit includes: a motor; a gear train for transmitting rotation of the motor so as to move the carriage; an encoder sensor for reading a code wheel fixed to a rotary shaft of the motor; and a support member for holding the motor. The encoder sensor is urged against a part of the support member by a resilient member, to be thus fixed to the support member.
摘要:
An optical transmitter generating an arbitrary optical waveform including an analog optical waveform, which is capable of controlling a bias to a Null point easily. The optical transmitter modulates light from a light source by an optical modulator with use of a data sequence being an electric signal, to thereby generate the arbitrary optical waveform, and includes: a light intensity detector detecting intensity of output light of the optical modulator; a data signal generator generating the data sequence; an average modulation degree calculator calculating an average modulation degree of the data sequence based on the data sequence; and a bias controller performing bias control on the optical modulator based on the intensity of the output light detected by the light intensity detector and the average modulation degree of the data sequence calculated by the average modulation degree calculator.
摘要:
There is provided a running device for track-laying vehicle, which can resolve a feeling of fear of falling height in a leading end portion of a crawler while relax a large impact when the crawler runs over a raised contact area. The running device includes a spring constant equalizing unit that equalizes an apparent spring constant of a second arm of lower track roller bogie device over a total length. The apparent spring constant is generated in maximum reverse camber of the crawler. The spring constant equalizing unit increases an oscillation angle α of the second arm that can abut on the first arm in the maximum reverse camber of the crawler such that the oscillation angle α of the second arm is larger than a crossing angle β of the connecting link. Desirably the increased maximum oscillation angle of the second arm is 1.3-2.0 times the crossing angle β.
摘要:
An equalizer bar itself serving as a suspension device of a track-type vehicle has spring effects imparted through torsional deformation relative to vertical oscillatory movements of track frames. Arm portions are fixed in directions opposite to each other in two ends of an equalizer bar main body. Free end portions of the arm portions are individually supported in the track frames to be rotatable in directions opposite to each other. The track frames are therefore regulated in the magnitudes of oscillatory movements according to the spring effects of the equalizer bar main body, whereby travel-time oscillations, oscillatory movements, and/or the like of the vehicle body are sufficiently restrained.
摘要:
To provide a package for an electric apparatus which allows a power cord to be efficiently housed when an electric apparatus is packed and which enables the power supply cord to be appropriately held in a packaging box. A power supply plug holding member 50 is formed by creating a cut-in portion 52 through which a power supply plug 611 is inserted, in a foldable packaging material such as a corrugated fiberboard and then folding the packaging material into a general U shape. The power supply plug 611 of an electric apparatus 61 is locked in the cut-in portion 52 in the power supply plug holding member 50, which is then housed between a packaging box 62 and the electric apparatus 61.