摘要:
A resist process apparatus of the invention serves to load/unload a semiconductor wafer in/from the respective process mechanisms. The apparatus includes a wafer holding member for holding a semiconductor wafer, and X, Y, Z and .theta. driving mechanisms for conveying the wafer holding member to a resist coating mechanism and the like. The wafer holding member includes a support frame which is larger than diameter of a semiconductor wafer, and a plurality of support members, arranged on the support frame, for supporting the semiconductor wafer in partial contact with the peripheral portion of the semiconductor wafer. Since the contact area between the support members and a semiconductor wafer is small, changes in temperature of the semiconductor, when it is held, are small.
摘要:
A pin for use in a chuck for clamping a discoid portion of a workpiece, the chuck including a base, at least to fixed clamps secured on a front end surface of the base, a movable clamp adjacent to the front end surface of the base and the pin secured to the front end surface of the base. The pin is adapted to fit in a hole formed in a discoid when the discoid is mounted on the chuck wherein the hole has a larger diameter than the pin. The pin has generally rhombic transversed section with a long diagonal and a short diagonal. The pin is truncated by a predetermined amount at each end along the long diagonal to allow the workpiece to move a limited distance relative to the pin along a line formed by the short diagonal. The limited distance may be a function of an initial clearance between the discoid portion and the chuck or a function or a variation between the diameter of the discoid portion and its design diameter, or a function of both. In the preferred embodiment, the predetermined amount truncated from each end of the pin is a function of 1/2 the difference between the long diagonal and the square root of the difference between the long diagonal squared and the limited distance squared.
摘要:
Disclosed herein is a method for operating blast furnace, wherein, when charging coke and ore alternately from the furnace top to form alternate coke and ore layers for operation of a blast furnace, a coke layer is formed by charging coke of properties especially suitable for improvement of gas and liquid permeability of the coke layer to the central part thereof or an ore layer is formed by charging ordinary versatile type coke to the central part of the ore layer prior to formation thereof. The centrally charged coke forms a major part of the dead coke layer which is sequentially renewed under the cohesive zone of the blast furnace to maintain appropriate gas and liquid permeability of the dead coke layer, thereby enhancing the production efficiency and stability of the blast furnace operation while suppressing erosive wear of refractory walls of the furnace.
摘要:
A green-emitting phosphor is activated by cerium and terbium and is represented by the general formula:(Re.sub.1-a-b-3c Tb.sub.a Ce.sub.b A.sub.3c).sub.2 O.sub.3.mP.sub.2 O.sub.5.nSiO.sub.2wherein Re is at least one member selected from the group consisting of yttrium, lanthanum, and gadolinium; A is at least one member selected from the group consisting of lithium (Li), sodium (Na), potassium (K), rubidium (Rb), and cesium (Cs); and a>0, b>0, c>0, 0 0, and n>0.The green-emitting phosphor of the invention may be widely applied to fluorescent lamps for copying machine light sources, or high luminous efficacy and high color rendering property fluorescent lamps such as three peak emission system fluorescent lamps.
摘要:
A vapor cooled semiconductor device which comprises an envelope having at least one aperture, at least one semiconductor element enclosed therein, an electrode contacting the semiconductor element and exposed across the aperture of the envelope, an expandable diaphragm disposed through an insulator between the electrode and the wall of the envelope to seal the gap therebetween, spherical spring plates disposed outside the envelope and arranged to support the semiconductor element through the electrode under pressure, and a liquid coolant enclosed in the closed envelope, with space provided therein, whereby the semiconductor element may be cooled by the latent heat of vaporization of the liquid coolant.
摘要:
The present invention provides a method for inhibiting production of copper sulfide in an electrical insulating oil inside an oil-filled electrical apparatus, including adding a benzotriazole compound not having a long-chain alkyl group when the oil-filled electrical apparatus is an open-type oil-filled electrical apparatus, or adding a benzotriazole compound having a long-chain alkyl group when the oil-filled electrical apparatus is a closed-type oil-filled electrical apparatus.
摘要:
A coating/developing device includes a processing block having a plurality of coating unit blocks stacked and a developing unit block stacked on the coating unit blocks. Each of the unit blocks is provided with a liquid processing unit for coating a liquid chemical on a substrate, a heating unit for heating the substrate, a cooling unit for cooling the substrate and a transfer unit for transferring the substrate between the units. The liquid processing unit is provided with a coating unit for coating a resist liquid on the substrate, a first bottom antireflection coating (BARC) forming unit for coating a liquid chemical for a BARC on the substrate before the resist liquid is coated thereon, and a second BARC forming unit for coating a liquid chemical for the BARC on the substrate after the resist liquid is coated thereon.
摘要:
Provided is a coating and developing apparatus composed of an assembly of plural unit blocks. A first unit-block stack and a second unit-block stack are arranged at different positions with respect to front-and-rear direction. Unit blocks for development, each of which comprises plural processing units including a developing unit that performs developing process after exposure and a transfer device that transfers a substrate among the processing units, are arranged at the lowermost level. Unit blocks for application, or coating, each of which comprises plural processing units including a coating unit that performs application process before exposure and a transfer device that transfers a substrate among the processing units, are arranged above the unit blocks for development. Unit blocks for application are arranged in both the first and second unit-block stacks. Unit blocks for application which a wafer goes through are determined depending on the layering positional relationship between an antireflective film and a resist film. An exposed wafer goes only through the unit block for development without going through any one of the unit blocks for application.
摘要:
A resist pattern forming method using a coating and developing apparatus and an aligner being connected thereto which are controlled to form a resist film on a surface of a substrate with a base film and a base pattern formed thereon, followed by inspecting at least one of a plurality of measurement items selected from: reflection ratio and film thickness of the base film and the resist film, line width after a development, an accuracy that the base pattern matches with a resist pattern, a defect on the surface after the development, etc. A parameter subject to amendment is selected based on corresponding data of each measurement item, such as the film thickness of the resist and the line width after the development, and amendment of the parameter is performed. This results in a reduced workload of an operator, and the appropriate amendment can be performed.
摘要:
An information processing apparatus connected to a printing apparatus via a network encrypts print data if identification information is input, and does not encrypt print data if identification information is not input. If identification information is input and the print data has been encrypted, the information processing apparatus sends a print job including the encrypted print data to the printing apparatus via the network; otherwise, the information processing apparatus sends unencrypted print data to the printing apparatus via the network.