The method 1 wherein the non magnetic bump material comprises {TAIL ~ TaO}, or {HEAD ~ Ta} 
The method 1 wherein the non magnetic bump material comprises { TAIL ~ TaO } , or { HEAD ~ Ta }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD