Ex parte YUAN et al. - Page 2




               Appeal No. 95-4959                                                                                                   
               Application 08/145,722                                                                                               


               to 23.                                                                                                               

                       The claimed invention pertains to a multiple peak resonant tunneling diode device having two                 

               resonant tunneling diodes connected in parallel.                                                                     

               Representative claim 1 is reproduced as follows:                                                                     

                       1.  A multiple peak resonant tunneling diode device comprising:                                              

                       a first resonant tunneling diode; and                                                                        

                       at least one other resonant tunneling diode in parallel with said first resonant tunneling diode.            

                       The examiner relies on the following references:                                                             

               Capasso et al. (Capasso)                       4,853,753                      Aug. 01, 1989                          

               Ando (Japanese Kokai)                          63-124578                      May  28, 1988                          

               Potter et al. (Potter), “Three-dimensional integration of resonant tunneling structures for signal                   
               processing and three-state logic,” Appl. Phys. Lett., Vol. 52, No. 25, 20 June 1988, pages 2163-64.                  
                                                                                                                                   
                       Claims 6-10 stand rejected under 35 U.S.C. § 112, second paragraph, as failing to particularly               

               point out and distinctly claim the subject matter of the invention.  Claims 1, 3, 5 and 6 stand rejected             

               under 35 U.S.C. § 102(b) as being anticipated by the disclosure of Capasso.  Claim 2 stands rejected                 

               under 35 U.S.C. § 103 as being unpatentable over the teachings of                                                    







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