{HEAD ~ The method} 16, wherein the combined gold and palladium layers are annealed at a temperature between 500° C. and 600° C. in {TAIL ~ a hydrogen atmosphere} 
{ HEAD ~ The method } 16 , wherein the combined gold and palladium layers are annealed at a temperature between 500 ° C. and 600 ° C. in { TAIL ~ a hydrogen atmosphere }
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL