Abstract:
Embodiments of a conditioning element (208) for conditioning a processing pad are provided herein. In one embodiment, a conditioning element (208) for conditioning a processing pad includes a body having a face. A plurality of diamond particles (420) are disposed on the face and define a conditioning surface. The diamond particles (420) are of a type selected from the group consisting of very blocky (4D), blocky (3D), and irregular (2D), and have a shape ratio less than or equal to 1.2. In one embodiment, the diamond particles (420) have an average size of between about 85 and about 115 µm. In one embodiment, the size of the diamond particles (420) may have a standard of deviation that is less than about 5 µm. In one embodiment, the diamond particles may have a spacing of greater than 400 µm.
Abstract:
A retaining ring can be shaped by machining or lapping the bottom surface of the ring to form a shaped profile in the bottom surface. The bottom surface of the retaining ring can include flat, sloped and curved portion. The lapping can be performed using a machine that dedicated for use in lapping the bottom surface of retaining rings. During the lapping the ring can be permitted to rotate freely about an axis of the ring. The bottom surface of the retaining ring can have curved or flat portions.
Abstract:
A retaining ring can be shaped by machining or lapping the bottom surface of the ring to form a shaped profile in the bottom surface. The bottom surface of the retaining ring can include flat, sloped and curved portion. The lapping can be performed using a machine that dedicated for use in lapping the bottom surface of retaining rings. During the lapping the ring can be permitted to rotate freely about an axis of the ring. The bottom surface of the retaining ring can have curved or flat portions.
Abstract:
Polishing compositions and methods for removing conductive materials from a substrate surface are provided. In one aspect, a composition is provided for removing at least a conductive material from a substrate surface including sulfuric acid or derivative, phosphoric acid or derivative, a first chelating agent including an organic salt, a pH adjusting agent to provide a pH between about 2 and about 10 and a solvent. The composition may further include a second chelating agent. The composition may be used in a single step or two step electrochemical mechanical planarization process. The polishing compositions and methods described herein improve the effective removal rate of materials from the substrate surface, such as tungsten, with a reduction in planarization type defects.
Abstract:
Polishing compositions and methods for removing conductive materials and barrier materials from a substrate surface are provided. In one aspect, a full sequence electrochemical mechanical planarization technique is provided. In another aspect, a hybrid planarization technique using combination of at least one chemical mechanical polishing process and at least one electrochemical mechanical polishing process is provided. In addition, a multi-step polishing process for polishing a substrate surface using at least two oxidizers in one or more polishing composition is described. The polishing composition may be used in the full sequence or the hybrid planarization technique. The polishing compositions and methods described herein improve the effective removal rate of materials from the substrate surface with a reduction in planarization defects.
Abstract:
Polishing compositions and methods for removing conductive materials and barrier materials from a substrate surface are provided. In one aspect, a full sequence electrochemical mechanical planarization technique is provided. In another aspect, a hybrid planarization technique using combination of at least one chemical mechanical polishing process and at least one electrochemical mechanical polishing process is provided. In addition, a multi-step polishing process for polishing a substrate surface using at least two oxidizers in one or more polishing composition is described. The polishing composition may be used in the full sequence or the hybrid planarization technique. The polishing compositions and methods described herein improve the effective removal rate of materials from the substrate surface with a reduction in planarization defects.
Abstract:
A method and apparatus for a planarizing or polishing article for Electrochemical Mechanical Planarization (ECMP) is disclosed. The polishing article is a pad assembly (122) having a plurality of conductive domains and a plurality of abrasive domains on a processing surface. The abrasive domains and the conductive domains comprise a plurality of contact elements (150) that are adapted to bias a semiconductor substrate (115) while also providing abrasive qualities to enhance removal of material deposited on the substrate.
Abstract:
A retaining ring can be shaped by machining or lapping the bottom surface of the ring to form a shaped profile in the bottom surface. The bottom surface of the retaining ring can include flat, sloped and curved portion. The lapping can be performed using a machine that dedicated for use in lapping the bottom surface of retaining rings. During the lapping the ring can be permitted to rotate freely about an axis of the ring. The bottom surface of the retaining ring can have curved or flat portions.