A method for planarizing a circuit board, has {HEAD ~ a step} of fixing {TAIL ~ a circuit board} having wiring layers on both sides to a board having a flat surface through an adhesive layer, wherein said circuit board is pressed from above by a flat member on fixing thereof 
of fixing
A method for planarizing a circuit board , has { HEAD ~ a step } of fixing { TAIL ~ a circuit board } having wiring layers on both sides to a board having a flat surface through an adhesive layer , wherein said circuit board is pressed from above by a flat member on fixing thereof
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