Abstract
A self-assembly device for 3D photonic crystal, includes an oscillating signal generation unit, an electrode unit, and a control unit. Said oscillation signal generation unit having a first substrate made of piezoelectric material and a second substrate which not made of piezoelectric material disposed on the first side of said first substrate. Said electrode unit disposed on the second side of said first substrate having a positive electrode and a negative electrode which parallel to each other. Said control unit is electrically connected to the electrode unit to provide a voltage to the electrode unit so as to excite the first substrate to generate a oscillating signal. Meanwhile, this invention also provides a self-assembly method.