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2.1.2.3. Mirror Board
Mirror board includes row panelized PCB and column panelized PCB
Row panelized: several same PCBs are arranged in horizontal direction, and the nearby rows are mirrored
Column panelized: several same PCBs are arranged in vertical direction, and the nearby columns are mirrored
No.1 red areas are original ref
No.2 yellow areas are original boards
No.3 blue area is mirror ref
No.4 light blue areas are mirror boards