摘要:
An article of manufacture, method, and apparatus are provided for planarizing a substrate surface. In one aspect, an article of manufacture is provided for polishing a substrate including a polishing article (205) having a body comprising at least a portion (310) of fibers coated with a conductive material, conductive fillers, or combinations thereof, and adapted to polish the substrate. In another aspect, a polishing article includes a body having a surface adapted to polish the substrate and at least one conductive element embedded in the polishing surface, the conductive element comprising dielectric or conductive fibers coated with a conductive material, conductive fillers, or combinations thereof. The conductive element may have a contact surface that extends beyond a plane defined by the polishing surface. A plurality of perforations (546) and a plurality of grooves (542) may be formed in the articles to facilitate flow of material through and around the polishing article.
摘要:
Methods and apparatuses for removing material from a microfeature workpiece are disclosed. In one embodiment, the microfeature workpiece is contacted with a polishing surface of a polishing medium, and is placed in electrical communication with first and second electrodes, at least one of which is spaced apart from the workpiece. A polishing liquid is disposed between the polishing surface and the workpiece and at least one of the workpiece and the polishing surface is moved relative to the other. Material is removed from the microfeature workpiece and at least a portion of the polishing liquid is passed through at least one recess in the polishing surface so that a gap in the polishing liquid is located between the microfeature workpiece and the surface of the recess facing toward the microfeature workpiece.
摘要:
The invention provides chemical-mechanical polishing systems, and methods of polishing a substrate using the polishing systems, comprising (a) an abrasive, (b) a liquid carrier, and (c) a positively charged polyelectrolyte with a molecular weight of about 15,000 or more, wherein the abrasive comprises particles that are electrostatically associated with the positively charged polyelectrolyte.
摘要:
The invention provides a polishing pad comprising a body having a top surface (10) comprising a first set of grooves (12) with a first depth and first width and a bottom surface comprising a second set of grooves (16) with a second depth and second width, wherein the first set of grooves (12) and second set of grooves (16) are interconnected and are oriented such that they are not aligned.
摘要:
The present invention relates to semiconductor integrated circuit technology and discloses an electrochemical mechanical processing system for uniformly distributing an applied force to a workpiece surface. The system includes a workpiece carrier for positioning or holding the workpiece surface and a workpiece-surface-influencing-device (WSID). The WSID is used to uniformly distribute the applied force to the workpiece surface and includes various layers that are used to process and apply a uniform and global force to the workpiece surface.
摘要:
An abrasive article (12) is described. The article (12) is suitable for the deposition and mechanical polishing of a conductive material, and comprises: a polishing layer having a textured surface (102) comprising a binder and a second surface opposite the textured surface (102), the polishing layer further comprising a first channel (104) extending therethrough; a backing (118) having a first backing surface and a second backing surface, the first backing surface associated with the second surface of the polishing layer, the backing (118) comprising a second channel (140, 148) coextensive with the first channel (104) and extending through the backing from the first backing surface to the second backing surface; the first channel (104) and the second channel (140, 148) dimensioned with respect to one another so that the textured surface (102) of the polishing layer is outside of a line of sight (a).
摘要:
A method and apparatus for removing conductive material from a microelectronic substrate. In one embodiment, the method can include engaging a microelectronic substrate with a polishing surface of a polishing pad,electrically coupling a conductive material of the microelectronic substrate to a source of electrical potential,and oxidizing at least a portion of the conductive material by passing an electrical current through the conductive material from the source of electrical potential. For example, the method can include positioning first and second electrodes apart from a face surface of the microelectronic substrate, disposing an electrolytic fluid between the face surface and the electrodes with the electrodes in fluid communication with the electrolytic fluid, and movingat least one of the microelectronic and the polishing pad relative to the other.
摘要:
A polishing device (16) is hermetically accommodated in a chamber (13) containing an atmosphere having a composition different from the ambient air, so that the atmosphere around the polishing device (16) is altered into the composition different from the ambient air, and voltage is applied between a wafer (W) and a polishing pad (34a) to polish the wafer (W) with an electrolytic effect. The polishing device (16) has the atmosphere containing extremely less oxygen, preventing a surface of the wafer (W) from oxidation and thereby providing a constant polishing rate.
摘要:
The invention discloses an electrochemical mechanical polishing/planarization equipment for processing a polishing surface (51) of a conductive wafer substrate (5), which includes a power supply (1); a polishing table (2) with conductivity; a polishing pad (3) including an insulating active layer (31) and having holes (311) where a conductive chemical liquid (4) is accommodated; a polishing head (6) having conductivity and being attached to the back of the polishing surface (51). The power supply (1), the polishing table (2), the chemical liquid (4), the conductive wafer substrate (5), and the polishing head (6) in sequence form a conductive loop, and an electrochemical reaction layer is formed on the polishing surface (51) of the conductive wafer substrate (5). The polishing head (6) drives the wafer substrate (5) to move relative to the polishing pad (3), and to implement a mechanical polishing or a chemical mechanical polishing of the electrochemical reaction layer.
摘要:
A wafer planarization process with a conditioning tool (14) having an electrical insulator that electrically insulates the abrasive surface of the conditioning tool (14). The electrical insulator extends the useful life of the abrasive surface of the conditioning tool (14) by reducing the level of electrochemically driven corrosion.