The exposed top face of the IC chip has a plurality of contact areas or pads around the periphery of the chip for connecting the input/output leads of the various circuits within {HEAD ~ the IC chip} to {TAIL ~ the multilayer circuit board} 
to
The exposed top face of the IC chip has a plurality of contact areas or pads around the periphery of the chip for connecting the input / output leads of the various circuits within { HEAD ~ the IC chip } to { TAIL ~ the multilayer circuit board }
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