摘要:
A chemical mechanical polishing (CMP) apparatus for planarizing a semiconductor wafer includes a wafer carrier for loading and fixing a semiconductor wafer to be polished and a polishing platen rotating at a constant speed, disposed at a lower portion of the wafer carrier. A polishing pad is provided on an upper surface of the polishing platen, and is in contact with a surface of the semiconductor wafer. A spiral slurry feed line supplies a slurry solution to the polishing pad. An end of the spiral slurry feed line is provided with a plurality of nozzles and the spiral slurry feed line is connected to a deionized water feed line that is opened or closed by a valve. Accordingly, abrasives are prevented from being precipitated, and the slurry solution is uniformly supplied to the semiconductor wafer, to thereby enhance polishing uniformity.
摘要:
A SOI substrate manufacturing method which corrects the warpage in the SOI substrate by varying the thickness of a semiconductor material layer additionally formed over the bonded combination of a semiconductor substrate and supporting substrate.
摘要:
An improved chemical mechanical polishing (CMP) device for chemically and mechanically planarizing the surface of a semiconductor wafer includes a flat wafer stage for loading and affixation of the semiconductor wafer so that the surface of a material to be polished, i.e. the surface of the wafer, faces up, and a cylindrical polishing pad formed above the exposed surface of the wafer to be polished which is rotatable at high speed so that the contact point of the wafer and the pad moves linearly. The stage is constructed to support a wafer by a vacuum suction through vacuum holes. The cylindrical polishing pad has a rotating axis for transmitting rotation at the center, thereof, and a double layer polishing pad having different hardness on a peripheral surface of the rotating axis.
摘要:
A method of fabricating a light weight and small size LCD, and an LCD fabricated by the same. The method of fabricating an LCD includes providing assembled mother substrates, wherein at least one of the mother substrates includes a polarizer, a buffer layer, and a transparent film sequentially stacked on an out-side thereof, and fabricating the assembled mother substrates as individual units by cutting the assembled mother substrates into unit cells.
摘要:
Provided is a jig which can be used in a process of adhering a adhering object to a to-be adhered object in a vacuum atmosphere, and vacuum equipment for use in the adhering process. The jig includes a first frame and a second frame which together define a chamber for receiving the first and second objects. The first frame includes a seating portion having a plurality of seating pockets, and an actuator disposed below each of the seating pockets, the actuator being movable with respect to the seating pockets. A first elastic member is disposed in the jig below the actuator. The first elastic member being positioned such that it can contact and move the actuator in response to a change of pressure in the jig chamber. The second frame includes a second elastic member which is positioned adjacent to each of the seating pockets. The second elastic member being movable to the change of pressure in the jig chamber.
摘要:
Wafer debonding of a bonded bulk wafer and a device wafer using a liquid jet to avoid scratching of the wafers is provided. The wafer debonder includes a wafer loader having a first stand with a flat upper surface and a second stand located above the first stand having a lower surface slanted with respect to the upper surface of the first stand at a predetermined angle. A first holder is connected to the first stand and a second holder is located on an imaginary surface extended from the lower surface of the second stand for holding the wafers. A liquid jetting nozzle is positioned adjacent the wafer loader to direct a jet of liquid at the interface between the wafers to separate the wafers.
摘要:
Wafer debonding of a bonded bulk wafer and a device wafer using a liquid jet to avoid scratching of the wafers is provided. The wafer debonder includes a wafer loader having a first stand with a flat upper surface and a second stand located above the first stand having a lower surface slanted with respect to the upper surface of the first stand at a predetermined angle. A first holder is connected to the first stand and a second holder is located on an imaginary surface extended from the lower surface of the second stand for holding the wafers. A liquid jetting nozzle is positioned adjacent the wafer loader to direct a jet of liquid at the interface between the wafers to separate the wafers.