Ex Parte LEEDY - Page 5





          Appeal No. 1999-2834                                                          
          Application No. 08/483,731                                                    


                    6.  One or both of the foregoing techniques would                   
               be applicable to forming a silicon membrane X-ray                        
               emitter array of the type claimed.  Attached is an                       
               article describing one use of such a technique,                          
               Miniature Electron Microscope Without Vacuum Pumps,                      
               dated August 1998.  Incidentally, the electron                           
               microscope described in this article produces                            
               significant X-ray emission from a specimen.                              
               Replacement of the electron-transparent isolation                        
               membrane in the figure with an X-ray target metal layer                  
               would result in an X-ray emitter of similar                              
               construction as that described in the application.                       
                    7.  The Office Action takes the position that a                     
               silicon membrane particle-beam shutter array or                          
               aperture array of the type claimed would have unique                     
               power requirements (high voltage and/or current) beyond                  
               the level of ordinary skill in the relevant art at the                   
               time the application was filed.  Again, I respectfully                   
               disagree.  In general, electrostatic or magnetic                         
               deflection of charged particle beams does not require                    
               excessive voltages, currents or power.  In particular,                   
               as the elements in the shutter array are miniaturized                    
               to the micrometer size range, electrostatic deflection                   
               voltage requirements are similarly reduced.                              
               When the “suitable proofs” presented by appellant and                    
          declarant are weighed against the examiner’s enablement concerns,             
          we must give more weight to the credible showing made by                      
          appellant.  Based upon the showing made by the appellant, the                 
          state of the art as represented by the submitted patents and the              
          noted article, and the lack of any evidence in the record to                  
          buttress the examiner’s concerns, we are of the opinion that the              
          skilled artisan would be able to successfully replicate the                   

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