摘要:
In an exposure device 20 for an optical disc master disc, the power density of light beam which is converged until the diffraction limit level by using a light source laser 1 of far ultraviolet radiation and an objective lens 7 having a numerical aperture of 0.85 or more is set to 4.upsilon..times.10.sup.2 W/cm.sup.2 or more (.upsilon.)[cm/sec] represents a linear velocity of recording), and a photoresist 8 on the master disc 9 of the optical disc is subjected to light exposure and heat treatment at the same time.
摘要翻译:在用于光盘母盘的曝光装置20中,通过使用远紫外线辐射的光源激光器1和数值孔径为0.85以上的物镜7会聚直到衍射极限水平的光束的功率密度 设定为4倍以上×102W / cm 2以上(以上)[cm / sec]表示记录的线速度),光盘的母盘9上的光致抗蚀剂8经受曝光和热处理 同时。
摘要:
A digital audio recorder and system efficiently increases a sampling frequency and a number of bits of a digital audio recording. The digital audio system has a frequency analyzer receives a first digital waveform data having a sampling frequency fs1 and N1 number of bits and determining a sampling frequency fs2 in accordance with a highest frequency component of the first digital waveform data. A delay device delays the first digital waveform data a time period equal to the time required for the frequency analyzer to determine the highest frequency component and then sends the first digitial waveform data to a frequency converter. The frequency converter converts the first digital waveform data to a second digital waveform data having the sampling frequency fs2 and a number of bits N2. A bit number converter converts the second digital waveform data to a third digital waveform data having a sampling frequency fs2 and a number of bits N3 determined in response to variation in the sampling frequency fs2 such that the product of fs2 and N3 is constant. A memory device stores the third digital waveform data.
摘要:
A semiconductor light exposure apparatus includes an excitation light source, a light beam generating device, a controller and a contracting optical system. The light beam generating device generates a fundamental wavelength laser light beam when excited by a light beam from the excitation light source, and wavelength-converts the fundamental wavelength laser light beam into a second harmonics laser light beam by a first resonator having a first non-linear optical crystal element while also converting the second harmonics laser light beam into a second harmonics laser light beam by a second resonator having a second non-linear optical crystal element. The controller controls an output of the excitation light source in order to control an output of the fourth-order harmonics laser light beam from the light beam generating device. The contracting optical system projects a pattern in a contracted size on a wafer by the fourth-order harmonics laser light beam outputted from the optical beam generating device.
摘要:
An exposure device in which a reticle having a circuit pattern of a semiconductor device formed on it is irradiated with light beam emanated from a light source, such as a laser light source, for exposing the circuit pattern formed on the reticle on a semiconductor wafer. The exposure device includes a light beam generator for illuminating the reticle having a semiconductor circuit pattern formed on it, an image-forming optical system for forming an image on a wafer of a light image produced on radiating a light beam on the reticle from the light beam generator. The exposure device also includes a movement unit for moving the wafer relative to the image-forming optical system, and an alignment unit for detecting the position on the wafer of the image formed on the wafer by the image-forming optical system for position matching the image by the image-forming optical system relative to the wafer. The light beam generator includes a light source for excitation, a first resonator and a second resonator. The first resonator is illuminated by the light beam from the light source for excitation and outputs the light beam from the light source for excitation after waveform conversion. The second resonator is illuminated by the light beam from the first resonator and outputs the light beam from the first resonator after waveform conversion.
摘要:
A sampling rate converter includes an arithmetic circuit for performing digital filtering processing for sampling rate conversion, and a circuit for calculating a sampling rate ratio. A memory circuit stores a plurality of groups of filter coefficients which are used in the digital filtering processing performed in the arithmetic circuit, corresponding to a plurality of sampling rate ratio ranges. A select circuit selects a filter coefficient group corresponding to the sampling rate ratio. The select circuit is arranged such that even if the sampling rate ratio is outside a sampling rate ratio range corresponding to a filter coefficient group selected at the present time, the select circuit continues to select the filter coefficient group selected at this time as long as the sampling rate ratio is within a predetermined range outside the sampling rate ratio range.
摘要:
A substrate for bioassay comprises a substrate and a group of reaction regions serving as a field where interaction between substances proceeds and formed in the substrate, and a group of information pits used to obtain positional information of individual reaction regions and/or substance information used in the reaction regions. The group of reaction regions and the group of information pits are not formed in the same substrate surface. A bioassay apparatus using the substrate and a method for making the substrate are also provided.
摘要:
A plasma display panel; a scan electrode drive circuit for generating a gently decreasing downward inclined waveform voltage in an initializing period, a gently increasing first inclined waveform voltage, and a second inclined waveform voltage having a steeper gradient than the first inclined waveform voltage and decreasing immediately after the increasing waveform voltage reaches a predetermined potential in the last part of the sustain period. The lowest voltage in the downward inclined waveform voltage is switched at a first voltage, a second voltage higher than the first voltage and a third voltage higher than the second voltage to generate a downward inclined waveform voltage. The lowest voltage is switched according to the detected temperature to generate the downward inclined waveform voltage.
摘要:
A plasma display device and a driving method thereof are provided. The plasma display device has a panel having a plurality of discharge cells including a display electrode pair that is formed of a scan electrode and a sustain electrode, and a temperature detecting circuit for detecting the ambient temperature of the panel and outputting the detected temperature. In the driving method, an unusual charge erasing period when a rectangular waveform voltage is applied to the scan electrode is disposed between the initializing period and address period of at least one of a plurality of subfields, and the number of subfields having the unusual charge erasing period is controlled based on the detected temperature detected by the temperature detecting circuit.
摘要:
Disclosed is a print apparatus including a rotating unit rotating a printed object, a print head printing visible information by ejecting ink droplets onto the printed object being rotated by the rotating unit, and a control unit generating ink ejection data based on the visible information and controlling the print head based on the ink ejection data. In the print apparatus, the control unit converts the visible information, which is expressed using biaxial perpendicular coordinate data, to polar coordinate data and carries out dot density correction that applies a correction weighting calculated in accordance with the number of dots per unit area for each dot in the polar coordinate data to a luminance value of each dot to generate the ink ejection data.
摘要:
A plasma display panel; a scan electrode drive circuit for generating a gently decreasing downward inclined waveform voltage in an initializing period, a gently increasing first inclined waveform voltage in an initializing period of at least one subfield in one field period, and a second inclined waveform voltage having a steeper gradient than the first inclined waveform voltage and decreasing immediately after the increasing waveform voltage reaches a predetermined potential in the last part of the sustain period; and a panel temperature detecting circuit are provided. The lowest voltage in the downward inclined waveform voltage is switched at a first voltage, a second voltage higher than the first voltage and a third voltage higher than the second voltage to generate a downward inclined waveform voltage. The lowest voltage is switched according to the temperature detected by the panel temperature detecting circuit to generate the downward inclined waveform voltage.