In another exemplary embodiment, the groove is formed in one of two substrates and the two substrates are laminated such that the surface of {TAIL ~ the substrate} on which {HEAD ~ the groove} is formed, faces toward the other substrate 
on
In another exemplary embodiment , the groove is formed in one of two substrates and the two substrates are laminated such that the surface of { TAIL ~ the substrate } on which { HEAD ~ the groove } is formed , faces toward the other substrate
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL REL OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH