摘要:
A polishing apparatus has a polishing section (302) configured to polish a substrate and a measurement section (307) configured to measure a thickness of a film formed on the substrate. The polishing apparatus also has an interface (310) configured to input a desired thickness of a film formed on a substrate to be polished and a storage device (308a) configured to store polishing rate data on at least one past substrate therein. The polishing apparatus includes an arithmetic unit (308b) operable to calculate a polishing rate and an optimal polishing time based on the polishing rate data and the desired thickness by using a weighted average method which weights the polishing rate data on a lately polished substrate.
摘要:
A polishing apparatus has a polishing section (302) configured to polish a substrate and a measurement section (307) configured to measure a thickness of a film formed on the substrate. The polishing apparatus also has an interface (310) configured to input a desired thickness of a film formed on a substrate to be polished and a storage device (308a) configured to store polishing rate data on at least one past substrate therein. The polishing apparatus includes an arithmetic unit (308b) operable to calculate a polishing rate and an optimal polishing time based on the polishing rate data and the desired thickness by using a weighted average method which weights the polishing rate data on a lately polished substrate.
摘要:
A polishing apparatus has a polishing section (302) configured to polish a substrate and a measurement section (307) configured to measure a thickness of a film formed on the substrate. The polishing apparatus also has an interface (310) configured to input a desired thickness of a film formed on a substrate to be polished and a storage device (308a) configured to store polishing rate data on at least one past substrate therein. The polishing apparatus includes an arithmetic unit (308b) operable to calculate a polishing rate and an optimal polishing time based on the polishing rate data and the desired thickness by using a weighted average method which weights the polishing rate data on a lately polished substrate.
摘要:
A substrate polishing apparatus is provided for preventing excessive polishing and insufficient polishing, and enabling a quantitative setting of an additional polishing time. The substrate polishing apparatus comprises a mechanism for polishing a substrate to be polished; a film thickness measuring device for measuring the thickness of a thin film deposited on the substrate; an interface for entering a target thickness for the polished thin film; a storage area for preserving past polishing results; and a processing unit for calculating a polishing time and a polishing rate. The substrate polishing apparatus builds an additional polishing database for storing data acquired from the result of additional polishing in the storage area.
摘要:
A substrate polishing apparatus is provided for preventing excessive polishing and insufficient polishing, and enabling a quantitative setting of an additional polishing time. The substrate polishing apparatus comprises a mechanism for polishing a substrate to be polished; a film thickness measuring device for measuring the thickness of a thin film deposited on the substrate; an interface for entering a target thickness for the polished thin film; a storage area for preserving past polishing results; and a processing unit for calculating a polishing time and a polishing rate. The substrate polishing apparatus builds an additional polishing database for storing data acquired from the result of additional polishing in the storage area.
摘要:
A gap between a vane tip and a cylinder inner circumferential surface is denoted by δ. If rv is set as in an Expression (1), a first vane rotates with the vane tip thereof being out of contact with the cylinder inner circumferential surface. In the vane compressor, wear at the tip of a vane is suppressed, loss due to sliding on bearings is reduced by supporting a rotating shaft portion with a small diameter, and accuracy in an outside diameter and center of rotation of a rotor portion is increased.
摘要:
There is provided a vane compressor with a plurality of vanes having a structure in which a rotor portion and a rotary shaft are unitarily formed so as to reduce bearing sliding loss of the rotary shaft and reduce gas leakage loss by narrowing a space formed between the rotor portion and the inner peripheral surface of a cylinder. In the vane compressor with the plurality of vanes according to the present invention, an angle α of a circular arc constituting the partial ring shape of each vane aligner satisfies a relationship of [ Equation 9 ] α
摘要翻译:提供了具有多个叶片的叶片式压缩机,其具有转子部分和旋转轴一体形成的结构,以便减少旋转轴的轴承滑动损失,并通过使形成在转子之间的空间变窄来减少气体泄漏损失 部分和圆筒的内周面。 在根据本发明的具有多个叶片的叶片式压缩机中,构成每个叶片对准器的部分环形的圆弧的角度α满足[等式9]α<2 tan -1 (1)其中R是每个衬套的旋转中心轴线和转子部分的旋转中心轴线之间的距离, e是圆筒的内周面的中心轴与转子部的旋转中心轴之间的距离,N(自然数为2以上)是叶片的数量。
摘要:
A reflection unit reflects an image indicated on an indicator and projects the image on a combiner to indicate a virtual image of the image at a position viewable for a user. A stepping motor rotates the reflection unit to move the virtual image continuously in a predetermined section of the combiner. A control unit controls a driving power of the stepping motor such that a smoothness parameter becomes less than a predetermined value. The smoothness parameter is defined by a division of a difference between the maximum speed of the virtual image and an average speed of the virtual image, when the virtual image moves continuously in the predetermined section, by the average speed.
摘要:
A first layer containing Ti as a constituent element, a second layer containing Nb as a constituent element, and a third layer containing Au as a constituent element are formed on a GaN substrate 11. Thereafter, the GaN substrate 11 and the first to third layers are kept at 700° C. or higher and at 1300° C. or lower. This allows a metal oxide of Ti to be distributed to extend from the interface between the GaN substrate 11 and the electrode 14 over to the inside of the electrode 14. Further, a metal nitride of Nb is formed in the inside of the GaN substrate 11. The metal nitride of Nb will be distributed to extend from the inside of the electrode 14 over to the inside of the GaN substrate 11.
摘要:
According to the present invention, there is provided an electrode structure which includes: a nitride semiconductor layer; an electrode provided over the nitride semiconductor layer; and an electrode protective film provided over the electrode, wherein the nitride semiconductor layer contains a metal nitride containing Hb, Hf or Zr as a constitutive element, the electrode has a portion having a metal oxide containing Ti or V as a constitutive element formed therein, and the electrode protective film covers at least a portion of the electrode, and contains a protective layer having Au or Pt as a constitutive element.