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
Data recording apparatus with recording control based on defect block and control method thereof
Pressure roller and fixing device equipped with the same
Reconstruction of deforming surfaces by canceling ambient occlusion and refining 3-D shape
Case for camera
Zoom lens
Method for spore detection
Liquid-level sensor
  Randomly Featured Patents
Isotropically etching sidewall spacers to be used for both an NMOS source/drain implant and a PMOS LDD implant
Liquid distributing apparatus and in particular a fertilizer or insecticide sprayer
Reciprocating pusher for transferring articles between conveyors
Device for regulating pressure
Grouped exposed metal heaters
Hybrid composite journal bearing and manufacturing method thereof
Pigment dispersion liquid, inkjet ink, ink cartridge, image forming apparatus, recording method , and image formed matter
Infeed mechanism
Thick film composition yielding magnetic properties
Cellular phone remote control device