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    AS871A (Seal Ring)

    AS871A (Seal Ring)   
    SIZE TOLERANCE 
         
    Size Tol. Customer Driven
         
    Flash Extension/P.L. Projection Material Cross Section Max.  
      All 0.003"  
         
    Flash Thickness 0.005"
         
    Off register/Mismatch 0.003"
         
         
         
    Combined Flash, Offset and Parting Line Projection    
         
    DEFECT TOLERANCE   
      Seal Ring AS871A
         
    Flats max. 0.003"  (except at min. MCS)
         
    Backrind None
         
         
         
    P.L. Indentation  Maximum Acceptable Dim. 
      Material Cross Section Depth Width or Length 
     <= 0.070" 0.002" 0.003" 
      0.070 <= 0.103" 0.003" 0.005" 
      0.103" <= 0.139" 0.004" 0.007" 
      0.139" <= 0.210" 0.005" 0.010" 
      0.210" < 0.006" 0.015" 
      Not more than 1 defect per inch of circumference 
         
    Foreign Material    
         
         
         
    Inclusions  Maximum Acceptable Dim. 
    (depression left from foreign material) Material Cross Section Depth Width or Length 
     <= 0.070" 0.002" 0.003" 
      0.070 <= 0.103" 0.003" 0.005" 
      0.103" <= 0.139" 0.004" 0.007" 
      0.139" <= 0.210" 0.005" 0.010" 
      0.210" < 0.006" 0.015" 
      Not more than 1 defect per inch of circumference 
         
    Indentations  Maximum Acceptable Dim. 
      Material Cross Section Depth Width or Length 
     <= 0.070" 0.002" 0.003" 
      0.070 <= 0.103" 0.003" 0.005" 
      0.103" <= 0.139" 0.004" 0.007" 
      0.139" <= 0.210" 0.005" 0.010" 
      0.210" < 0.006" 0.015" 
      Not more than 1 defect per inch of circumference 
         
    Non Fill  Maximum Acceptable Dim. 
      Material Cross Section Depth Width or Length 
     <= 0.070" 0.002" 0.005" 
      0.070 <= 0.103" 0.003" 0.010" 
      0.103" <= 0.139" 0.004" 0.015" 
      0.139" <= 0.210" 0.005" 0.020" 
      0.210" < 0.006" 0.030" 
      Not more than 1 defect per inch of circumference 
         
    Mold Deposit Defects  Maximum Acceptable Dim. 
    (Indentations) Material Cross Section Depth Width or Length 
     <= 0.070" 0.002" 0.005" 
      0.070 <= 0.103" 0.003" 0.010" 
      0.103" <= 0.139" 0.004" 0.015" 
      0.139" <= 0.210" 0.005" 0.020" 
      0.210" < 0.006" 0.030" 
      Not more than 1 defect per inch of circumference 
         
    Flow Marks  Maximum Acceptable Dim.
      Material Cross Section Depth Width Length
     <0.139" 0.002" 0.002" 0.060"
     >= 0.139" 0.002" 0.002" 0.180"
      Not more than 1 defect per 2 inches of circumference
         

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