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

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