Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Potentiometric-sensor chip, potentiometric assay, and assay kit
OFDM control signaling in the presence of timing asynchronization in a peer-to-peer network
Cellulose ester compositions having low birefringence and films made therefrom
Electric vehicle supply equipment having a socket and a method of charging an electric vehicle
Charge domain filter and method thereof
Compositions substantially free of sodium chloride and methods for the storage of red blood cells
Method for processing power headroom and terminal thereof
  Randomly Featured Patents
Method for inhibiting pro-angiogenic activities of endothelial cells selectively at a site of neoangiogenesis in a mammal by administration of the extracellular domain of D1-1 polypeptides
Derivatives of 3-(Guanidinocarbonyl) heterocycle, methods of preparation and intermediates thereof, their use as medicaments, and pharmaceutical compositions therefrom
Light-reflecting and heating type oximeter
Device for stacking sheet material
Method and system for detecting increased internal friction in a steering mechanism
Snow mold
Method and apparatus for programmable fluidic processing
Tire
Indexable cutting insert with indexing marks
Grinder attachment