Flex pcb via

A via in a flexible printed circuit board (flex PCB) is a hole that connects the conductive layers of the board.

Vias are used to transfer signals and power between different layers of the flex PCB.

They can be created using various methods such as laser drilling, mechanical drilling,

or chemical etching. Vias in flex PCBs are typically filled with conductive material to ensure good electrical connectivity between the layers.

The size and placement of vias in a flex PCB are critical factors that affect the performance and reliability of the board.

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