摘要:
A semiconductor device producing method and a semiconductor device producing system employs a processing apparatus provided with a dust particle detecting apparatus. The dust particle detecting apparatus measures the condition of adhesion of dust particles adhering to a work at least before or after processing the work, manages the condition of incremental adhesion of dust particles to the work resulting from processing for each lot of works or for each work on the basis of the measured condition of adhesion of dust particles measured before or after processing the work, and determines the time when the processing apparatus is to be cleaned or the cycle of cleaning the processing apparatus on the basis of the managed condition of adhesion of dust particles.
摘要:
The present invention provides data analysis stations respectively for a probing tester and an automatic particle inspection machine. And in the data analysis station, the coordinates on which the disposition of the chips are described on a product basis are equal to those on which the locations of the defects are described. Further, the station provides a function of determining which of the chips each defect belongs to. These data analysis stations are connected through a communication line. The present invention is capable of analyzing the data on a chip basis, resulting in being able to grasp the relation between how the defects are caused on each chip and the product character of the chip.
摘要:
An optical head is used in a magnetic field modulation type magnetooptical recording/reproducing apparatus. The optical head includes a device for irradiating a magnetooptical record medium with a light beam, a separating device for separating a reflected light beam from the magnetooptical record medium into two beams to be projected onto a single plane, a single photodetector provided with two two-divided light receiving portions for respectively receiving the two beams, and a single convex lens element for forming images of the two beams as light spots on the single photodetector.
摘要:
According to the optical information recording and reproducing apparatus of the present invention, in an optical information recording and reproducing apparatus for recording and/or reproducing information while performing a relative reciprocating movement between a recording and/or reproducing head and an optical information recording medium having information tracks, plural spots including a spot having the function of recording and/or reproducing information formed on said recording medium by said head are arranged so as to be located on the same information track in said recording medium. Further, by switching the functions which at least two spots have during forward movement and during backward movement of said relative movement, it is possible to arrange the spots having roles in accordance with the recording and reproducing apparatus and have them function in a predetermined order. Thus, the present invention has an effect that a stable and correct recording and/or reproduction of information with high speed becomes possible.
摘要:
A biaspherical single lens for an optical information recording-reproducing apparatus comprises a single lens forming an image through a substrate of thickness t and having its first and second surfaces both formed by an aspherical surface and in which when the distance from any point on the aspherical surface to the tangential plane of the vertex of the aspherical surface is X and the distance from said any point to the optic axis is H and the reference radius of curvature of the .nu.th surface is R.sub..nu. and the cone constant of the .nu.th surface is K.sub..nu. and the aspherical coefficient of the .nu.th surface is A.sub..nu.i (i=3, 4, . . . ), the aspherical surface is an aspherical surface expressed by the following equation and satisfies the following conditions (1), (2), (3) and (4): ##EQU1## where F is the focal length of the aspherical single lens, D is the thickness on the optic axis of the aspherical single lens, and N is the refractive index of the aspherical single lens for the wavelength used.
摘要翻译:用于光学信息记录 - 再现装置的偏置球形单透镜包括通过厚度为t的衬底形成图像的单个透镜,并且其第一和第二表面都由非球面形成,并且其中当距离非球面上的任何点的距离 非球面顶点切向面的表面为X,从任一点到光轴的距离为H,第n个表面的参考曲率半径为R nu,第n面的锥体常数 是K nu,并且第n表面的非球面系数是A nu i(i = 3,4,...),非球面是由以下等式表示的非球面,并且满足以下条件(1),( 2),(3)和(4): + TR A nu 4H4 +。 。 。 (nu = 1,2)。 (1)(2)(3)(4)其中F是非球面单透镜的焦距,D是非球面单透镜光轴上的厚度, N是所用波长的非球面单透镜的折射率。
摘要:
An optical pickup device in which, e.g., a semiconductor laser is used as a light source and light fluxes from the light source are irradiated onto an optical information recording medium, thereby performing either one of or both recording and reproduction of information into and from the recording medium is provided. The device includes: a light source to generate a light beam which is irradiated to the optical recording medium; a polarizing or non-polarizing beam splitter, arranged on the optical path from the light source to the recording medium and consisting of prisms, for transmitting the light beam from the light source and leading to the recording medium, and for separating the light reflected by the recording medium from the light beam from the light source; and photodetectors, arranged almost rectilinearly, for receiving the reflected light from the recording medium which is separated by the beam splitter, wherein among the planes of the beam splitter, the plane opposite to the plane which faces the direction of the photodetectors has a shape adapted to lead the light beam reflected by this plane to the direction which is almost perpendicular to the arrangement direction of the photodetectors. With this apparatus, the signals can be detected with a high S/N ratio.
摘要:
An impurity detector atomizes a liquid sample by injecting the sample into a chamber with a gas. In the chamber the liquid is heated, preferably by heating the gas prior to injection, to cause all the liquid to evaporate. The solid impurities contained in the liquid are thus entrained in the gas and carried to a detector region. The chamber is arranged so that all the gas and all the particles arrive at the detector region. A particle detector measures the number and size of the particles and from that measurement, the concentration of impurities in the sample can be determined. The system permits on-line operation, and produces accurate results.
摘要:
An electronic instrument includes an input device having a plurality of channels to each of which an audio signal is input. A demodulation device demodulates audio signals and converts the audio signals into digital signals that control the electronic instrument. The electronic instrument also includes a feeding device that feeds the digital signals to a sound source and a detection device that detects whether or not the audio signals in any of the plurality of channels are modulated by the digital signals. A controller controls the demodulation device, in cases where it has been detected that any of the audio signals are modulated by the digital signals, so as to demodulate the digital signals from the audio signals that have been input to the channels, such that another channel's audio signals that are not modulated by the digital signals are output to an audio output.
摘要:
When an image scanner scans an image recorded on an advanced photo system™ film, it determines spectral transmittance of a portion of the film, which is not exposed but developed, then sets parameters, such as masking parameters and &ggr; correction parameters, to be used in image signal processes on the basis of the spectral characteristics. Thereafter, the image is read by a CCD and image data is outputted. The film scanner applies the image signal processes to the image data using the parameters set in accordance with the spectral transmittance.
摘要:
Embodiments of the present invention comprise an electronic system by which it is possible to have an accompaniment that automatically tracks the performance tempo of a performer. The system is equipped with a ROM in which a sequence of performance data that comprise a main performance composition that is to be performed by the performer is stored. The system receives input from the performer, for example, keystrokes of a keyboard, and the relative performance tempo of the performance by the performer is calculated with respect to a segment of the performance. An accompaniment is then generated by the system by comparing the detected tempo of the performance of the artist with the tempo of the reference performance that is stored in ROM. By knowing the difference in tempo between the reference piece stored in ROM and the piece as being performed by the performer, the system may then adjust the tempo of the accompaniment to match the tempo of the performance by the artist.