摘要:
It is intended to provide a membrane structure element that can be easily manufactured, has an excellent insulating property and high quality; and a method for manufacturing the membrane structure element. The manufacturing method is for manufacturing a membrane structure element including a membrane formed of a silicon oxide film and a substrate which supports the membrane in a hollow state by supporting a part of a periphery of the membrane. The method includes: a film formation step of forming a heat-shrinkable silicon oxide film 13 on a surface of a silicon substrate 2 by plasma CVD method; a heat treatment step of performing a heat treatment to cause the thermal shrinkage of the silicon oxide film 13 formed on the substrate 1; and a removal step of removing a part of the substrate 2 in such a manner that a membrane-corresponding part of the silicon oxide film 13 is supported as a membrane in a hollow state with respect to the substrate 2 to form a recessed part 4.
摘要:
It is intended to provide a membrane structure element that can be easily manufactured, has an excellent insulating property and high quality; and a method for manufacturing the membrane structure element. The manufacturing method is for manufacturing a membrane structure element including a membrane formed of a silicon oxide film and a substrate which supports the membrane in a hollow state by supporting a part of a periphery of the membrane. The method includes: a film formation step of forming a heat-shrinkable silicon oxide film 13 on a surface of a silicon substrate 2 by plasma CVD method; a heat treatment step of performing a heat treatment to cause the thermal shrinkage of the silicon oxide film 13 formed on the substrate 1; and a removal step of removing a part of the substrate 2 in such a manner that a membrane-corresponding part of the silicon oxide film 13 is supported as a membrane in a hollow state with respect to the substrate 2 to form a recessed part 4.
摘要:
A shape determining device (X) splits the original light beam from a light source (Y) into two light beams, directs the light beams to the front and back surfaces of the object (1) to be determined, and performs optical heterodyne interference using the split light beams at the front and back surfaces of the object (1) to be determined. In the shape determining device (X), each of the split light beams is further split into a main light beam and a subordinate light beam, the subordinate light beam interferes with the main light beam at each of the front and back surfaces before and after the illumination of the object (1) to be determined, the signals after the interference are phase-detected, and the difference between the phases acquired by the phase detection is detected at each of the front and back surfaces of the object (1) to be determined. In the shape determining device (X), optical modulation for performing the optical heterodyne interference is performed before the optical heterodyne interference of the split light beams after the split light beams are directed to the front and back surfaces of the object (1) to be determined. Furthermore, in the shape determining device (X), a measurement optical system before the phase detection and after the split light beams are directed to the front and back surfaces of the object (1) to be determined is maintained integrally.
摘要:
The concentration of impurities contained in ultrapure water or press water can be efficiently analyzed with high precision. A portion of a liquid to be measured is introduced into an absorption spectrometric portion from a predetermined line. The liquid is irradiated with exciting light from an exciting light irradiation system, and a measurement object region in which a photothermal effect of the impurities in the liquid is produced by the irradiation is irradiated with measuring light from a measuring light irradiation system. A change in phase of the measuring light is detected by a predetermined optical system and a photodetector, and the impurity concentration in the liquid is determined on the basis of the change in phase.
摘要:
A shape measuring apparatus and a shape measuring method suited for measuring an edge profile of a thin sample such as a semiconductor wafer or the like is provided. A distribution of surface angle and an edge profile of a measurement site is calculated by emitting light at sequentially different angle to the measurement site of a wafer by sequentially switching and lighting a plurality of LEDs each disposed at one of plurality of positions in one plane by an LED driving circuit, obtaining an image data showing a luminance distribution of the reflected light form the measurement site through a camera by a calculator each time light is emitted and, estimating an emitting angle of the light when the luminance of the reflected light becomes peak based on image data and emitting angle of the light corresponding to each LED by the calculator.
摘要:
An object of the present invention is to measure thickness distribution with precision by using a simple device configuration without being affected by vibrations of a to-be-measured object. In the present invention, for each of the front and the back surfaces of a to-be-measured object 1, each of light beams obtained by branching into two an emitted light beam from a laser light source 2 is further branched into two. Then, the light beams are reflected in reference surfaces and measurement points 1a and 1b mutually in a front and back relation, so that non-interference light beams Pax and Pbx each of which contains the reference light beam and the object light beam as mutually orthogonal polarization components are acquired. Then, each light beam is branched into a plurality. Onto one or more of the branched light beams, phase shift is performed in which a change is imparted to the phase difference between the orthogonal polarization components by using wavelength plates a261, a263, and a264 and the like. Then, in the branched light beams after the phase shift, common polarization components are extracted with adopting as a reference the polarization directions of the reference light beam and the object light beam so that interference light beams Qa1 to Qa4 and Qb1 to Qb4 are acquired. From their intensities, the phase difference between the polarization components of the reference light beam and the object light beam in the non-interference light beam is calculated. Then, thickness distribution in a to-be-measured object 1 is calculated from the distribution of the phase difference.
摘要:
The concentration of impurities contained in ultrapure water or press water can be efficiently analyzed with high precision.A portion of a liquid to be measured is introduced into an absorption spectrometric portion 2c from a predetermined line. The liquid is irradiated with exciting light Le from an exciting light irradiation system 10, and a measurement objet region AS in which a photothermal effect of the impurities in the liquid is produced by the irradiation is irradiated with measuring light Lm from a measuring light irradiation system 20. A change in phase of the measuring light Lm is detected by a predetermined optical system and a photodetector 36, and the impurity concentration in the liquid is determined on the basis of the change in phase.
摘要:
A shape measuring apparatus and a shape measuring method suited for measuring an edge profile of a thin sample such as a semiconductor wafer or the like is provided. A distribution of surface angle and an edge profile of a measurement site is calculated by emitting light at sequentially different angle to the measurement site of a wafer by sequentially switching and lighting a plurality of LEDs each disposed at one of plurality of positions in one plane by an LED driving circuit, obtaining an image data showing a luminance distribution of the reflected light form the measurement site through a camera by a calculator each time light is emitted and, estimating an emitting angle of the light when the luminance of the reflected light becomes peak based on image data and emitting angle of the light corresponding to each LED by the calculator.
摘要:
A shape determining device includes first and second homodyne interferometers respectively provided for front and back surfaces of an object to be measured and a thickness distribution calculator that calculates a thickness distribution of the object based on intensities of first and second interference light beams respectively detected by the first and second homodyne interferometers for the front and back surfaces of the object at a plurality of measurement sites. The thickness distribution calculator calculates, for each interference light beam for which the intensity is detected by the first and second homodyne interferometers, a phase difference between the polarization components of a corresponding reference light beam and a corresponding object light beam in a corresponding non-interference light beam based on the intensity of the interference light beam, and calculates the thickness distribution based on a distribution of the calculated phase differences.
摘要:
A shape determining device (X) splits the original light beam from a light source (Y) into two light beams, directs the light beams to the front and back surfaces of the object (1) to be determined, and performs optical heterodyne interference using the split light beams at the front and back surfaces of the object (1) to be determined. In the shape determining device (X), each of the split light beams is further split into a main light beam and a subordinate light beam, the subordinate light beam interferes with the main light beam at each of the front and back surfaces before and after the illumination of the object (1) to be determined, the signals after the interference are phase-detected, and the difference between the phases acquired by the phase detection is detected at each of the front and back surfaces of the object (1) to be determined. In the shape determining device (X), optical modulation for performing the optical heterodyne interference is performed before the optical heterodyne interference of the split light beams after the split light beams are directed to the front and back surfaces of the object (1) to be determined. Furthermore, in the shape determining device (X), a measurement optical system before the phase detection and after the split light beams are directed to the front and back surfaces of the object (1) to be determined is maintained integrally.