{HEAD ~ The second electrode} is made of an Mg—Ag layer having a thickness in a range of {TAIL ~ 170 Å} to 200 Å 
{ HEAD ~ The second electrode } is made of an Mg — Ag layer having a thickness in a range of { TAIL ~ 170 Å } to 200 Å
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH