activation means for flooding the chip surface with pulsed ultraviolet laser light, causing photoelectron emission as {TAIL ~ a function} of the voltages at {HEAD ~ test points} on the wafer  
activation means for flooding the chip surface with pulsed ultraviolet laser light , causing photoelectron emission as { TAIL ~ a function } of the voltages at { HEAD ~ test points } on the wafer
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH