Patent ID: 11971451
Assignee: THE 13TH RESEARCH INSTITUTE OF CHINA ELECTRONICS TECHNOLOGY GROUP CORPORATION
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 8:
9. The method according to claim 7, wherein determining, according to the on-wafer calibration piece model, the admittance formula corresponding to the on-wafer calibration piece model comprises:
when the on-wafer piece calibration model is the second open circuit calibration piece model and the corresponding on-wafer calibration piece is the second open circuit calibration piece, determining that the admittance formula is:, {
  
    
      
        
          
            
              Y
              open
              ′
            
            =
            
              
                Y
                1
                ′
              
              +
              
                Y
                2
                ′
              
              +
              
                Y
                3
                ′
              
            
          
        
      
      
        
          
            
              
                Y
                1
                ′
              
              =
              
                j
                ⁢
                
                  
                
                ⁢
                ω
                ⁢
                
                  
                
                ⁢
                
                  C
                  open
                
              
            
            ⁢
            
              
            
          
        
      
      
        
          
            
              
                Y
                2
                ′
              
              =
              
                j
                ⁢
                
                  
                
                ⁢
                ω
                ⁢
                
                  
                
                ⁢
                
                  C
                  s
                  ′
                
              
            
            ⁢
            
              
            
          
        
      
      
        
          
            
              
                Y
                3
                ′
              
              =
              
                1
                
                  R
                  s
                  ′
                
              
            
            ⁢
            
              
            
          
        
      
    
    ,, wherein Yopen′ denotes an admittance of the second open circuit calibration piece, Copen denotes a capacitance of the open circuit calibration piece capacitor measured at a preset frequency, Rs′ denotes resistance of the fifth resistor, Cs′ denotes a capacitance of the fifth capacitor, Y1′ denotes an admittance of Copen, Y2′ denotes an admittance of Cs′, and Y3′ denotes an admittance of Rs′.