Patent ID: 11916161
Assignee: LUMENTUM JAPAN, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 1:
2. The semiconductor light-receiving element of claim 1,
wherein the low-concentration layer of the first conductivity type has a thickness that is 1.1 times a thickness Dn0 or less, the thickness Dn0 being defined by Equation 1, Equation 2, and Equation 3, and
wherein the low-concentration layer of the second conductivity type has a thickness that is 1.1 times a thickness Dp0 or less, the thickness Dp0 being defined by Equation 1, Equation 2, and Equation 3:, Dp
      ⁢
      0
     
     =
     
      
       
        2
        ·
        
         (
         
          Vr
          +
          Vb
         
         )
        
       
       
        
         (
         
          q
          
           ε
           ⁢
           p
          
         
         )
        
        ·
        Np
        ·
        Rp
       
      
     
    
   
   
    
     [
     
      Equation
      ⁢
         
      1
     
     ]
    
   
  
 

 
  
   
    
     Rp
     =
     
      1
      +
      
       
        (
        
         ε
         ⁢
         n
         /
         ε
         ⁢
         p
        
        )
       
       ·
       
        (
        
         Np
         /
         Nn
        
        )
       
      
     
    
   
   
    
     [
     
      Equation
      ⁢
         
      2
     
     ]
    
   
  
 

 
  
   
    
     
      Dn
      ⁢
      0
     
     =
     
      
       
        (
        
         Rp
         -
         1
        
        )
       
       ·
       Dp
      
      ⁢
      0
     
    
   
   
    
     [
     
      Equation
      ⁢
         
      3
     
     ]
    
   
  
 

wherein:
Vr: bias voltage applied from outside,
Vb: built-in potential,
q: elementary charge,
εp: dielectric constant of the low-concentration layer of the second conductivity type, and
εn: dielectric constant of the low-concentration layer of the first conductivity type.