It does, however, change when the mobile ions are neutralized by {TAIL ~ electrons} injected from {HEAD ~ the semiconductor} 
It does , however , change when the mobile ions are neutralized by { TAIL ~ electrons } injected from { HEAD ~ the semiconductor }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD