摘要:
A polishing apparatus polishes a periphery of a substrate. This polishing apparatus includes a rotary holding mechanism configured to hold the substrate horizontally and rotate the substrate, plural polishing head assemblies provided around the substrate, plural tape supplying and recovering mechanisms configured to supply polishing tapes to the plural polishing head assemblies and recover the polishing tapes from the plural polishing head assemblies, and plural moving mechanisms configured to move the plural polishing head assemblies in radial directions of the substrate held by the rotary holding mechanism. The tape supplying and recovering mechanisms are located outwardly of the plural polishing head assemblies in the radial directions of the substrate, and the tape supplying and recovering mechanisms are fixed in position.
摘要:
A method for manufacturing a semiconductor device makes it possible to efficiently polish with a polishing tape a peripheral portion of a silicon substrate under polishing conditions particularly suited for a deposited film and for silicon underlying the deposited film. The method includes pressing a first polishing tape against a peripheral portion of a device substrate having a deposited film on a silicon surface while rotating the device substrate at a first rotational speed, thereby removing the deposited film lying in the peripheral portion of the device substrate and exposing the underlying silicon. A second polishing tape is pressed against the exposed silicon lying in the peripheral portion of the device substrate while rotating the device substrate at a second rotational speed, thereby polishing the silicon to a predetermined depth.
摘要:
The polishing apparatus has a polishing unit capable of polishing a peripheral portion of the substrate to form a right-angled cross section. The polishing apparatus includes: a substrate holder that holds and rotates the substrate; guide rollers that support a polishing tape; and a polishing head having a pressing member that presses an edge of the polishing tape against the peripheral portion of the substrate from above. The guide rollers are arranged such that the polishing tape extends parallel to a tangential direction of the substrate and a polishing surface of the polishing tape is parallel to a surface of the substrate. The substrate holder includes: a holding stage that holds the substrate; and a supporting stage that supports a lower surface of the peripheral portion of the substrate in its entirety. The supporting stage rotates in unison with the holding stage.
摘要:
A polishing apparatus polishes a periphery of a substrate. This polishing apparatus includes a rotary holding mechanism configured to hold the substrate horizontally and rotate the substrate, plural polishing head assemblies provided around the substrate, plural tape supplying and recovering mechanisms configured to supply polishing tapes to the plural polishing head assemblies and recover the polishing tapes from the plural polishing head assemblies, and plural moving mechanisms configured to move the plural polishing head assemblies in radial directions of the substrate held by the rotary holding mechanism. The tape supplying and recovering mechanisms are located outwardly of the plural polishing head assemblies in the radial directions of the substrate, and the tape supplying and recovering mechanisms are fixed in position.
摘要:
Various services for a mobile communication network or an IP network are implemented by processing necessary information suitably in accordance with a service type so as to exchange the information to a service control device and transmitting the results of the service process by the service control device to the mobile communication network or the IP network, for a service request from the mobile communication network or the IP network. A gateway device of the present invention retains a signal defining various rules or policies received from the service control device, judges a service type and a destination requested from the service request signal by the various rules or policies for the service request signal transmitted from a communication terminal of the mobile communication network or the communication terminal of the IP network, performs protocol conversion on the service request signal in accordance with the service type, and transmits the service request signal to the corresponding destination.
摘要:
The present invention relates to a polishing apparatus for removing surface roughness produced at a peripheral portion of a substrate, or for removing a film formed on a peripheral portion of a substrate. The polishing apparatus includes a housing (3) for forming a polishing chamber (2) therein, a rotational table (1) for holding and rotating a substrate (W), a polishing tape supply mechanism (6) for supplying a polishing tape (5) into the polishing chamber (2) and supplied to the polishing chamber (2), a polishing head (35) for pressing the polishing tape (5) against a bevel portion of the substrate (W), a liquid supply (50) for supplying a liquid to a front surface and a rear surface of the substrate (W), and a regulation mechanism (16) for making an internal pressure of the polishing chamber (2) being set to be lower than an external pressure of the polishing chamber (2).
摘要:
The present invention provides various services for a mobile communication network (100) or an IP network (200), by processing necessary information suitably in accordance with a service type so as to exchange the information to a service control device (20) and transmitting the results of the service process by the service control device (20) to the mobile communication network (100) or the IP network (200), for a service request from the mobile communication network (100) or the IP network (200). A gateway device (10) of the present invention retains a signal defining various rules or policies received from the service control device (20), judges a service type and a destination requested from the service request signal by the various rules or policies for the service request signal transmitted from a communication terminal (300) of the mobile communication network (100) or the communication terminal of the IP network (20), performs protocol conversion on the service request signal in accordance with the service type, and transmits the service request signal to the corresponding destination.
摘要:
A cathode ray tube device which comprises an electromagnetic shielding casing, a cathode ray tube held in said casing, an elastic material provided between the casing and cathode ray tube in contact therewith, and a space or porous material formed in part of a region defined between the casing and elastic material, and wherein said space or porous material suppresses the axial shifting of the cathode ray tube resulting from the thermal expansion of the elastic material when it is highly heated.
摘要:
A refrigeration oil composition comprising at least one oil selected from the group consisting of mineral oils and synthetic oils, said oil having a viscosity of from 1 to 500 cSt at 40.degree. C.; and a mercaptan of the formula RSH, wherein R is an alkyl group having 14 to 20 carbon atoms, said mercaptan being in an amount of from 5 to 5000 ppm, based on said oil composition, said refrigeration oil has excellent lubrication characteristics and is therefore effective to prevent seizure of sliding portions of the refrigerator mechanism and at the same time inhibits the occurrence of valve coking. It is also stable even in a refrigerant such as Freon and is therefore free from causing corrosion of the sliding portions of the refrigerator.
摘要:
A method of polishing a peripheral portion of a substrate is provided. This method includes: causing sliding contact between the peripheral portion of the substrate and a polishing tape; and supplying a polishing liquid onto the polishing tape contacting the peripheral portion of the substrate. The polishing tape includes a base tape and a fixed abrasive formed on the base tape, and the polishing liquid is an alkaline polishing liquid containing an alkaline chemical and an additive including molecules that cause steric hindrance.