The semiconductor device 15, wherein the spacer is {HEAD ~ an organic material} selected from {TAIL ~ the group} consisting of butyl rubber, EPDM rubber, silicone rubber, and fluororubber 
The semiconductor device 15 , wherein the spacer is { HEAD ~ an organic material } selected from { TAIL ~ the group } consisting of butyl rubber , EPDM rubber , silicone rubber , and fluororubber
OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH