Resources Contact Us Home
High-rate groove pattern

Image Number 3 for United States Patent #8062103.

The invention provides a polishing pad useful for polishing at least one of a magnetic, optical and semiconductor substrate in the presence of a polishing medium with a polishing pad. The polishing pad comprises a center, an inner region surrounding the center, a transition region connecting grooves from the inner region to an outer region surrounding the inner region. The outer region has multiple grooves with a high-rate path. The transition region is adjacent the outer region and within a radius from the center defined as follows: .times..times..times..times..times..times. ##EQU00001## ##EQU00001.2## .times..function..times..theta..times..times..function..times..theta..tim- es..times..times..times..times..theta..times..times. ##EQU00001.3## with the inner region originating continuous grooves that extend uninterrupted to the outer region.

  Recently Added Patents
Device to facilitate moving an electrical cable of an electric vehicle charging station and method of providing the same
Perception-based artifact quantification for volume rendering
Portable multimedia player
Simultaneous image distribution and archiving
Stack and folding-typed electrode assembly and method for preparation of the same
Battery comprising circuitry for charge and discharge control, and method of operating a battery
Tiered cost model for access to a computer network
  Randomly Featured Patents
Emergency handoff method of redirecting calls in a satellite communication system
System, implementation, application, and query language for a tetrahedral data model for unstructured data
Cylinder injection engine and control apparatus and method thereof
System and method for magnetic resonance imaging of 3-dimensional heart wall motion with spatial modulation of magnetization
Device to spatially encode a beam of light
Self-contained energy center for producing mechanical, electrical, and heat energy
Magnetic memory device
Ceiling fan light kit
Method for expression of small antiviral RNA molecules with reduced cytotoxicity within a cell
Preparation of 2-T-alkylanthracene