{HEAD ~ The internal features} can be used for attaching parts or {TAIL ~ components} to the multi layer substrate, thereby securing the parts or components to the multi layer substrate and thus the housing 
used for attaching
{ HEAD ~ The internal features } can be used for attaching parts or { TAIL ~ components } to the multi layer substrate , thereby securing the parts or components to the multi layer substrate and thus the housing
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH REL REL REL OTH OTH TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH