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