Patent ID: 11942490
Assignee: TOSHIBA MATERIALS CO., LTD.
Field: Semiconductors (Electrical engineering)
Classification: CPC H  G | IPC G  H

Claim 0:
1. A photon counting radiation detector, comprising:
a cell structure including
a substrate, and
an epitaxial layer provided on the substrate, radiation being incident on the epitaxial layer;
an inclination θ of the substrate satisfying Formula (1) below, where tsub is a thickness of the substrate, tepi is a thickness of the epitaxial layer, L is a length of the substrate, and the inclination θ is an inclination of the substrate with respect to an incident direction of the radiation and is greater than 0°:, θ
        ≦
        
          tan
          ⁢
          
            
          
          ⁢
          θ
        
        ≦
        
          
            
              L
              ±
              
                
                  
                    L
                    2
                  
                  -
                  
                    4
                    ⁢
                    
                      
                        t
                        sub
                      
                      ⁡
                      
                        (
                        
                          
                            t
                            sub
                          
                          +
                          
                            t
                            epi
                          
                        
                        )
                      
                    
                  
                
              
            
            
              2
              ⁢
              
                (
                
                  
                    t
                    sub
                  
                  +
                  
                    t
                    epi
                  
                
                )
              
            
          
          .
        
      
    
    
      
        (
        1
        )