Roller that avoids substrate slippage

Abstract

A roller assembly is provided. The roller assembly comprises a groove that includes two opposing surfaces. The roller assembly comprises either frictional surfaces positioned along the groove, or O-ring(s) coupled to the groove. The frictional surfaces may be a plurality of holes at spaced intervals along the opposing surfaces of the groove, a plurality of holes, each hole sized so as to extend into the two opposing surfaces, at spaced intervals along the opposing surfaces of the groove, or may be a bead-blasted surface or a knurled surface positioned along the opposing surfaces of the groove.

1 . A method of cleaning a thin disk comprising: 
 providing a roller having a surface adapted to contact an edge of a thin disk, the surface of the roller having holes therein;    placing an edge of a thin disk in contact with the holes; and    rotating the roller such that the thin disk rotates therewith.    
   
   
       2 . The method of  claim 1  wherein providing a roller includes providing a roller wherein each of the holes therein is sized so as to extend into each of the two surfaces.  
   
   
       3 . The method of  claim 2  wherein providing a roller includes providing a roller wherein each of the holes therein extends perpendicular to a point where the at least two surfaces meet.  
   
   
       4 . The method of  claim 2  wherein providing a roller includes providing a roller wherein each of the holes therein extends parallel to a point where the at least two surfaces meet.  
   
   
       5 . The method of  claim 1  wherein providing a roller includes providing a roller wherein each of the holes therein extends perpendicular to a point where the at least two surfaces meet.  
   
   
       6 . The method of  claim 1  wherein providing a roller includes providing a roller wherein each of the holes therein extends parallel to a point where the at least two surfaces meet.  
   
   
       7 . A method comprising: 
 contacting a thin disk with a roller having a groove including at least two surfaces adapted to contact an edge of the thin disk wherein the roller includes a plurality of holes located along at least one of the two surfaces, each hole extending parallel to an axis of rotation of the roller; and    rotating the roller such that the thin disk rotates therewith.    
   
   
       8 . The method of  claim 7 , wherein contacting a thin disk includes contacting a thin disk with the roller wherein each of the holes therein extends through a point where the at least two surfaces meet, thereby forming a scalloped surface adapted to contact an outer edge of the thin disk.  
   
   
       9 . The method of  claim 8  wherein contacting a thin disk includes contacting a thin disk with the roller wherein each of the holes therein extends parallel to a point where the least two surfaces meet, and wherein each of the holes is sized so as to extend into each of the two surfaces.  
   
   
       10 . The method of  claim 7 , wherein contacting a thin disk includes contacting a thin disk with the roller wherein each of the holes therein extends parallel to a point where the at least two surfaces meet.  
   
   
       11 . The method of  claim 7  wherein contacting a thin disk includes contacting a thin disk with the roller wherein each of the holes therein is sized so as to extend into each of the two surfaces.  
   
   
       12 . The method of  claim 7 , further comprising: 
 applying a fluid to the thin disk; and    removing fluid from the groove via the holes.    
   
   
       13 . A method comprising: 
 contacting a thin disk with a roller having a groove including at least two surfaces adapted to contact an edge of the thin disk, wherein the roller includes at least one feature extending through a side wall of the roller into the groove and adapted to remove fluid from the groove;    applying a fluid to the thin disk;    causing the roller and the thin disk to rotate while in contact; and    removing fluid from the groove using the at least one feature of the groove.    
   
   
       14 . The method of  claim 13 , wherein the at least one feature includes a plurality of holes located along at least one of the two surfaces.  
   
   
       15 . The method of  claim 14 , wherein each hole extends parallel to an axis of rotation of the roller.  
   
   
       16 . The method of  claim 14 , wherein each of the holes extends through a point where the at least two surfaces meet, thereby forming a scalloped surface adapted to contact the thin disk's outer edge.  
   
   
       17 . The method of  claim 14 , wherein each of the holes extends parallel to a point where the at least two surfaces meet.  
   
   
       18 . The method of  claim 14  wherein each of the holes is sized so as to extend into each of the two surfaces.