With this construction, the insulation film which is partly removed as a part of the etched portion is formed inside the composite substrate in {HEAD ~ parallel} with {TAIL ~ the main surface} thereof 
with
With this construction , the insulation film which is partly removed as a part of the etched portion is formed inside the composite substrate in { HEAD ~ parallel } with { TAIL ~ the main surface } thereof
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 HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH