{TAIL ~ A high frequency semiconductor device} contains a semiconductor element in {HEAD ~ a cavity} formed by a dielectric board and a cap 
{ TAIL ~ A high frequency semiconductor device } contains a semiconductor element in { HEAD ~ a cavity } formed by a dielectric board and a cap
TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH