FIG 8A is a cross sectional view of another exemplary substrate bonding apparatus during a first alignment process according to the present invention, and FIG 8B is a cross sectional view of the exemplary substrate bonding apparatus during {HEAD ~ a second alignment process} according to {TAIL ~ the present invention} 
according to
FIG 8A is a cross sectional view of another exemplary substrate bonding apparatus during a first alignment process according to the present invention , and FIG 8B is a cross sectional view of the exemplary substrate bonding apparatus during { HEAD ~ a second alignment process } according to { TAIL ~ the present invention }
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