Ex parte BEASOM - Page 5

          Appeal No. 96-1584                                                          
          Application 08/066,697                                                      

               The respective positions of the examiner and the appellant             
          with regard to the propriety of these rejections are set forth in           
          the final rejection (Paper No. 8) and the examiner's answer                 
          (Paper No. 12) and the appellant's brief (Paper No. 11).                    
                               APPELLANT’S INVENTION                                  
               In FIG. 1 appellant discloses an integrated circuit                    
          architecture wherein substrate 13 is coupled to receive a bias              
          V , the value of which is the same or close to the voltage                  
          applied to the N- island 11.  As a result, the voltage                      
          differential across dielectric layer 15 is effectively zero so              
          that no electron/hole pairs will be induced at interface 27                 
          between N- region 11 and region 25.  This limitation on the                 
          voltage differential between the island and substrate ensures               
          that the electric field generated as a result of the substrate              
          bias voltage is never high enough to cause avalanche generation             
          of electron/hole pairs at interface 27 so as to degrade the                 
          breakdown voltage characteristic of the device at the PN junction           
               FIGS. 2 and 3 are examples of trench-isolated island                   
          integrated circuit architectures.  In order to prevent                      
          hole/electron pairs from being generated at the N-/N+                       
          island/buried layer interface 27, which would degrade the                   


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Last modified: November 3, 2007