Blank Cutting die (mold) for COF （Chip On Film or Chip On Flex), a kind of high precision punch mold for LCD screen driver circuit. this is a kind of new technology derived from Li-ion battery electrodes stamp die , Electrodes V-shape Punch Mold etc.,which belongs to the Electrode Stamping System.
https://www.nissonmold.com/electrodes-cutting-mold/