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
Methods, apparatus, and systems for facilitating control communications between disparate devices
Incrementally increasing deployment of gateways
System and method for ensuring compliance with organizational policies
Powerline communication receiver
Point-in-time copies in a cascade using maps and fdisks
Hydroxyl-terminated thiocarbonate containing compounds, polymers, and copolymers, and polyurethanes and urethane acrylics made therefrom
Cycloalkylamine substituted isoquinoline and isoquinolinone derivatives
  Randomly Featured Patents
Methods for production of proteins
Valve actuating mechanism for a piston engine
Tail light bracket for motorcycle
Method and device for successively feeding sheets from a stack of sheets
Collagen-based adhesives and sealants and methods of preparation and use thereof
Motorized power steering apparatus
Bus bar interconnection techniques
Apparatus for alarming abnormal coolant in space cooling cycle
Barrier layer and method of making the same
Coil decoupling in magnetic resonance imaging