Roller with microstructure and the manufacturing method thereof

Abstract

The present invention discloses a method for manufacturing a roller with microstructure, comprising the steps of: forming a protective metal layer on a roller; defining specific imprint patterns on an imprint stamp by processing the imprint stamp with a flexible mold; forming an etch mask on the embossed imprint stamp after the imprint stamp is released from the mold; wetting the imprint stamp and the etch mask thereof; adhering the etch mask onto the roller by rolling the roller on the imprint stamp; etching the roller at the portion thereof uncovered by the etch mask; and forming the roller with specific microstructure by removing the etch mask and the protective metal layer.

1 . A method for manufacturing a roller with microstructure, comprising the steps of: 
 forming a protective metal layer on a roller;    defining specific imprint patterns on an imprint stamp by processing the imprint stamp with a flexible mold having the specific imprint patterns embossed thereon;    forming an etch mask on the patterned imprint stamp having imprint patterns complementary to that of the flexible mold;    rolling the roller on the patterned stamp for adhering the etch mask of imprint patterns complementary to that of the flexible mold on the roller and thus forming a patterned layer of monomer on the protective metal layer of the roller;    etching the roller at the portion thereof uncovered by the etch mask; and    forming the roller with specific microstructure by removing the etch mask and the protective metal layer.    
     
     
         2 . The method of  claim 1 , wherein the etch mask is a layer having a complementary image of the specific imprint patterns of the flexible mold.  
     
     
         3 . The method of  claim 2 , wherein the layer is made of a monomer.  
     
     
         4 . The method of  claim 3 , wherein the monomer is the Self-Assembly Mononer (SAM).  
     
     
         5 . The method of  claim 1 , wherein the flexible mold is made of Polydimethyl Siloxane (PDMS).  
     
     
         6 . A roller with microstructure, forming by the step of: 
 forming a protective metal layer on the roller;    forming an etch mask of specific imprint pattern on the roller by rolling and pressing the roller on an imprint stamp;    etching the roller at the portion thereof uncovered by the etch mask; and    forming the roller with specific microstructure by removing the etch mask and the protective metal layer.    
     
     
         7 . The roller of  claim 5 , wherein the etch mask is a layer having a complementary image of the specific imprint patterns of the imprint stamp.  
     
     
         8 . The roller of  claim 6 , wherein the layer is made of a monomer.  
     
     
         9 . The roller of  claim 5 , wherein the roller is applied in the manufacturing of flexible printed circuit board.