According to the present invention, the ink jet recording head substrate, wherein {HEAD ~ widening} of {TAIL ~ the supply port} is prevented, can be stably and efficiently manufactured 
of
According to the present invention , the ink jet recording head substrate , wherein { HEAD ~ widening } of { TAIL ~ the supply port } is prevented , can be stably and efficiently manufactured
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH