摘要:
Embodiments described herein relate to an apparatus and method for a roller assembly that may be utilized in a brush cleaning module. In one embodiment, a roller assembly is described. The roller assembly includes an annular groove having at least two substantially parallel opposing sidewalls adapted to contact the major surfaces of a substrate along a periphery of the substrate, each of the opposing sidewalls comprising a compressible material having a pre-compressed dimension that is less than a thickness of the periphery of the substrate.
摘要:
A method of determining a physical property of a substrate includes recording a first spectrum obtained from a substrate, the first spectrum being obtained during a polishing process that alters a physical property of the substrate. The method includes identifying, in a database, at least one of several previously recorded spectra that is similar to the recorded first spectrum. Each of the spectra in the database has a physical property value associated therewith. The method includes generating a signal indicating that a first value of the physical property is associated with the first spectrum, the first value being determined using the physical property value associated with the identified previously recorded spectrum in the database. A system for determining a physical property of a substrate includes a polishing machine, an endpoint determining module, and a database.
摘要:
A method of forming bare silicon substrates is described. A bare silicon substrate is measured, wherein measuring is performed by a non-contact capacitance measurement device to obtain a signal at a point on the substrate. The signal or a thickness indicated by the signal is communicated to a controller. An adjusted polishing parameter according to the signal or thickness indicated by the signal is determined. After determining an adjusted polishing parameter, the bare silicon substrate is polished on a polisher using the adjusted polishing parameter.
摘要:
A computer program product that determines a polishing endpoint includes obtaining spectra from different zones on a substrate during different times in a polishing sequence, matches the spectra with indexes in a library and uses the indexes to determining a polishing rate for each of the different zones from the indexes. An adjusted polishing rate can be determined for one of the zones, which causes the substrate to have a desired profile when the polishing end time is reached.
摘要:
A method for electrochemically processing a substrate is provided. In one embodiment, the method includes performing a conditioning procedure on a processing pad having a plurality of process cells, energizing the process cells by applying a voltage to the conditioned processing pad, placing a substrate having at least a conductive layer disposed thereon on the energized pad, and removing at least a portion of the conductive layer in the energized process cells. In another embodiment, a method for polishing a substrate includes placing an unused conductive pad having a plurality of process cells on a platen of a processing system, breaking in the pad on the platen, energizing the process cells by applying a voltage to the broken-in pad, placing a substrate having at least a conductive layer disposed thereon on the energized pad, and removing at least a portion of the conductive layer in the energized cells.
摘要:
Methods, apparatus, and systems for polishing a substrate are provided. The invention includes an upper platen; a torque/strain measurement instrument coupled to the upper platen; and a lower platen coupled to the torque/strain measurement instrument and adapted to drive the upper platen to rotate through the torque/strain measurement instrument. In other embodiments, the invention includes an upper carriage; a side force measurement instrument coupled to the upper carriage; and a lower carriage coupled to the side force measurement instrument and adapted to support a polishing head. Numerous additional aspects are disclosed.
摘要:
In some aspects, a chemical mechanical polishing (CMP) apparatus is provided that includes a polishing head having (a) a rotatable spindle; (b) a membrane coupled to the rotatable spindle and adapted to press a substrate against a polishing pad during polishing of the substrate; and (c) a retaining ring rotatable coupled to the spindle and adapted to surround a substrate being pressed against a polishing pad during polishing and to limit lateral movement of the substrate relative to the polishing head. The CMP apparatus also includes a drive mechanism coupled to the retaining ring and adapted to drive the retaining ring at a different rate of rotation than the spindle during polishing. Numerous other aspects are provided.
摘要:
A method and apparatus for polishing or planarizing a substrate by a chemical mechanical polishing process. In one embodiment a method of processing a semiconductor substrate is provided. The method comprises positioning a substrate on a polishing apparatus comprising a polishing pad assembly, delivering a polishing slurry to a surface of the polishing pad assembly, polishing the substrate with the surface of the polishing pad assembly, monitoring the removal rate of material from a plurality of regions on the surface of the substrate, determining whether the plurality of regions on the surface of the substrate are polishing uniformly, and selectively delivering a polishing slurry additive to at least one region of the plurality of regions to obtain a uniform removal rate of material from the plurality of regions on the surface of the substrate, wherein the removal rate of material from the at least one region is different than at least one other region of the plurality of regions.
摘要:
A method of generating a library from a reference substrate for use in processing product wafers is described. The method includes measuring substrate characteristics at a plurality of well-defined points of a reference substrate, measuring spectra at plurality of measurement points of the reference substrate, there being more measurement points than well-defined points, and associating measured spectra with measured substrate characteristics.
摘要:
An apparatus and method for manufacturing and refurbishing a conductive polishing pad assembly for performing an electrochemical process on a substrate is disclosed. The conductive polishing pad assembly is formed using a contact surface as a foundation that is coated with a metallic coating to create a conductive contact surface. In one embodiment, the metallic coating is a high purity tin/zinc alloy that is sprayed on the contact surface. The contact surface contains abrasive particles while the metallic coating provides at least conductive qualities to the contact surface.