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