摘要:
The present invention provides a silicon compound represented by Formula (1) and a polymer obtained by using the same, and this makes it possible not only to obtain an organic-inorganic composite material having a distinct structure but also to control the structure of the above polymer as a molecular aggregate. wherein R1 is a group independently selected from hydrogen, alkyl having a carbon atom number of 1 to 40, substituted or non-substituted aryl and substituted or non-substituted arylalkyl; in this alkyl having a carbon atom number of 1 to 40, optional hydrogens may be substituted with fluorine, and optional —CH2— may be substituted with —O—, —CH═CH—, cycloalkylene or cycloalkenylene; in alkylene in this arylalkyl, optional hydrogens may be substituted with fluorine, and optional —CH2— may be substituted with —O— or —CH═CH—; and A1 is a group having an α-haloester bond.
摘要:
A conventional silsesquioxane derivative has the problems that the functional groups are restricted and the chemical structure is not readily controlled and that it is expensive. The present inventors have developed a process for producing a silsesquioxane derivative at a high yield by a simple process in order to solve such problems. The novel silsesquioxane derivative according to the present invention is controlled in a structure thereof and has a functional group, which is excellent in reactivity with a target compound, to be modified. The present invention relates to a production process for a silsesquioxane derivative represented by Formula (2), characterized by using a silicon compound represented by Formula (1). In Formula (1) and Formula (2), R is a group selected from hydrogen, alkyl, aryl and arylalkyl; M is a monovalent alkaline metal atom; at least one of Y is a group represented by Formula (3), and the remainder of Y is hydrogen; R1 and R2 in Formula (3) represent the same group as defined for R; and Z is a functional group or a group having a functional group
摘要:
The present invention provides a substrate holder for holding and transferring a thin substrate, comprising a substrate support member having a recessed area for placing a thin substrate therein and substrate mount portions formed in the recessed area in the vicinity of a circumferential edge thereof. The substrate mount portions is adapted to be engaged with an outer circumferential portion of a backside of the substrate placed in the recessed area. The substrate holder further comprises a substrate detector for detecting presence or absence of the substrate in the recessed area.
摘要:
Magnetic recording medium includes at least two layers having different magnetic anisotropy constants formed on a substrate and the perpendicular magnetic anisotropy of the second magnetic film of those magnetic films, far from the substrate surface, made equal to or larger than that of the first magnetic film near to the substrate surface, thus improving the magnetic isolation.
摘要:
A substrate processing apparatus includes first and second polishing units for polishing a peripheral portion of a substrate, a primary cleaning unit for cleaning the substrate, a secondary cleaning and drying unit for drying the substrate cleaned in the primary cleaning unit, and a measurement unit for measuring the peripheral portion of the substrate. The measurement unit includes a mechanism for measurement required for polishing in the first and second polishing units, such as a diameter measurement mechanism, a cross-sectional shape measurement mechanism, or a surface condition measurement mechanism.
摘要:
The present invention provides a polishing apparatus and a polishing method capable of calculating outside diameters of rolls of a polishing tape on a polishing-tape supply reel and a polishing-tape recovery reel and capable of calculating a remaining amount of the polishing tape and a consumption of the polishing tape from the outside diameters of the rolls. This polishing apparatus includes a polishing-tape supply reel (46), a polishing head (44), a polishing-tape drawing-out mechanism G1, and a polishing-tape supply and recovery mechanism (45) configured to recover the polishing tape (43) from the polishing-tape supply reel (46) via the polishing head (44). The polishing-tape supply and recovery mechanism (45) includes a motor Mb adapted to apply a torque to the polishing-tape supply reel (46) so as to exert a predetermined tension on the polishing tape (43) traveling through the polishing head (44), and a rotation angle detector REa adapted to detect a rotation angle of the polishing-tape supply reel (46).
摘要:
A polishing method can obtain a good polishing profile which, for example, will not cause peeling of a semiconductor layer from a silicon substrate. The polishing method includes: positioning a polishing head at a position above a polishing start position in an edge portion of a rotating substrate; lowering a polishing tool of the polishing head until the polishing tool comes into contact with the polishing start position in the edge portion of the rotating substrate and a pressure between the polishing tool and the polishing start position reaches a set pressure; allowing the polishing tool to stay at the polishing start position for a predetermined amount of time; and then moving the polishing head toward a peripheral end of the substrate while keeping the polishing tool in contact with the edge portion of the rotating substrate at the set pressure.
摘要:
A device for polishing the peripheral edge part of a semiconductor wafer includes a wafer stage for holding the wafer, a wafer stage unit including devices for rotating the wafer stage, causing the wafer stage to undergo a rotary reciprocating motion within the same plane as the surface of the wafer stage, and moving the wafer stage parallel to the surface, a notch polishing part for polishing the notch on the wafer and a bevel polishing part for polishing the beveled part of the wafer. Pure water is supplied to the wafer to prevent it from becoming dry as it is transported from the notch polishing part to the bevel polishing part.
摘要:
A polishing apparatus polishes a top edge portion and/or a bottom edge portion of a substrate accurately and uniformly. The polishing apparatus includes a rotary holding mechanism 3 configured to hold the substrate W horizontally and to rotate the substrate W; and at least one polishing head 30 disposed near the peripheral portion of the substrate. The polishing head 30 has at least one protrusion 51a, 51b extending along a circumferential direction of the substrate W, and the polishing head 30 is configured to press a polishing surface of a polishing tape 23 by the protrusion 51a, 51b against the peripheral portion of the substrate W from above or below.
摘要:
A polymer and a treating agent (such as a surface-treating agent) are provided that have excellent characteristics in such properties as water repellency, oil repellency, antifouling property and charge controlling property. The polymer contains a structural unit derived from fluorosilsesquioxane having an addition polymerizable group, or contains a structural unit derived from fluorosilsesquioxane having an addition polymerizable group and a structural unit derived from organopolysiloxane having an addition polymerizable group. The treating agent contains the polymer. An article treated with the treating agent is also provided.