Ex parte LIU - Page 8




          Appeal No. 96-0019                                                          
          Application 08/150,742                                                      


          If appellant’s claimed intervals equalize temperature                       
          distribution as disclosed, and if Fukino’s intervals equalize               
          temperature distribution as taught therein, one must conclude               
          that the differences only result from the fact that the Fukino              
          transistor is different from appellant’s transistor.  Therefore,            
          we are of the view that if appellant’s heterojunction transistor            
          with equal junction intervals existed in the prior art, the                 
          claimed interval modifications to equalize temperature would have           
          been compelled by the calculations suggested by Fukino.  Since              
          all the evidence in this case supports the position that the                
          transistor with equal junction intervals existed in the prior               
          art, we conclude that the claimed intervals for this particular             
          prior art transistor would have been obvious to the artisan when            
          trying to equalize the junction temperatures of this transistor.            
          For all the reasons just discussed, we sustain the                          
          examiner’s rejection of independent claim 24.  Since dependent              
          claims 25-28 stand or fall with claim 24, supra, we also sustain            
          the rejection of these claims.  Accordingly, the decision of the            
          examiner rejecting claims 24-28 is affirmed.                                
          No time period for taking any subsequent action in                          
          connection with this appeal may be extended under 37 CFR                    
          § 1.136(a).                                                                 

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