Ex parte BLAIR et al. - Page 2




               Appeal No. 1997-0439                                                                                                
               Application 08/348,414                                                                                              


               to 17 have been canceled.                                                                                           



                                                        BACKGROUND                                                                 

                       The subject matter on appeal is directed to optical waveguides and corner coupling of                       

               electronic devices using an interconnect substrate (see specification, page 1).  More specifically,                 

               appellants disclose an interconnect substrate (see appellants’ Figure 1) and a method of making an                  

               interconnect substrate having a cleaved end surface which creates a corner edge contact (see                        

               specification, pages 1 to 2; Brief, page 3).  Appellants recognized that by cutting or cleaving a channel           

               109 in an end surface 105 and an upper surface 104 after an electrically conductive material (e.g.,                 

               solder) has been added, electronic devices 152 can be more easily connected and coupling can be                     

               performed more easily and efficiently (see specification, page 1).                                                  

                       Representative independent apparatus claim 8 is reproduced below:                                           

                       8.     An interconnect substrate comprising:                                                                

                       a substrate having a first surface with an electrical trace;                                                

                       a channel formed in the first surface and filled with an electrically conductive material;                  

                       the substrate being cut through the first surface and the channel to form an end surface, the               
               channel and the electrically conductive material defining a contact in the end surface and a contact in the         
               first surface; and                                                                                                  

                       the electrical trace being operably coupled to the electrically conductive material in the channel.         


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