Patent ID: 11930339
Assignee: UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY)
Field: Audio-visual technology (Electrical engineering)
Classification: CPC H  B  C | IPC B  C  H

Claim 0:
1. A method of manufacturing a nano membrane, comprising:
depositing zinc oxide (ZnO) on a silicon (Si) substrate to form a ZnO sacrificial layer;
coating the ZnO sacrificial layer with metal nanowires, which are arranged to cross each other, through solution-based bar-coating;
depositing a polymer coating raw material comprising parylene-C on the ZnO sacrificial layer coated with the metal nanowires, to form an insulating layer that is a parylene thin film,
wherein the metal nanowires have portions of side surfaces which protrude from one surface of the insulating layer; and
removing the ZnO sacrificial layer,
wherein a distance y0 between a neutral axis and a bottom of the parylene thin film is calculated according to following Equation 3:, y
       0
      
      =
      
       
        h
        2
       
       *
       
        
         1
         +
         
          
           
            
             2
             ⁢
             h
            
            +
            
             2
             ⁢
             r
            
           
           h
          
          ⁢
          
           (
           
            
             
              E
              Ag
             
             
              E
              Pa
             
            
            -
            1
           
           )
          
          ⁢
          n
          ⁢
          π
          ⁢
          
           r
           2
          
          /
          bh
         
        
        
         1
         +
         
          
           (
           
            
             
              E
              Ag
             
             
              E
              Pa
             
            
            -
            1
           
           )
          
          ⁢
          n
          ⁢
          π
          ⁢
          
           r
           2
          
          /
          bh
         
        
       
      
     
     ,
    
   
   
    
     [
     
      Equation
      ⁢
         
      3
     
     ]
    
   
  
 

where y0 is the distance between the neutral axis and the bottom of the parylene thin film, h is a thickness of the parylene thin film, h′ is a distance between the metal nanowires and the bottom of the parylene thin film, r is a radius of each of the metal nanowires, b is a width of the parylene thin film, and EAg and EPa are Young's moduli of the metal nanowire and the parylene thin film, respectively.