The spindle speed is a function of the desired mean thickness of the photoresist, {HEAD ~ the barometric pressure} and {TAIL ~ the relative humidity} 
The spindle speed is a function of the desired mean thickness of the photoresist , { HEAD ~ the barometric pressure } and { TAIL ~ the relative humidity }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL