The chamber depth is defined by {HEAD ~ the thickness} of {TAIL ~ the photoimagable polymer}, typically 14 or 19 μm 
of
The chamber depth is defined by { HEAD ~ the thickness } of { TAIL ~ the photoimagable polymer } , typically 14 or 19 μm
OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH