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