Besides, transmission loss of high frequency signals is caused by {HEAD ~ neigther} through holes or via {TAIL ~ holes}, and is effectively suppressed 
Besides , transmission loss of high frequency signals is caused by { HEAD ~ neigther } through holes or via { TAIL ~ holes } , and is effectively suppressed
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH