4 layer rigid flex pcb stackup
A 4 layer rigid flex PCB stackup typically consists of four layers of materials: two rigid layers and two flexible layers. The stackup is designed to provide both flexibility and rigidity to the PCB, allowing it to bend and twist while maintaining its shape and functionality.
The layers of a 4 layer rigid flex PCB stackup typically include:
- Top layer: This layer is the topmost layer of the PCB and is typically made of copper. It serves as the primary conductive layer, carrying signals and power throughout the board.
- Inner layer: This layer is sandwiched between the top and bottom layers and can be made of either copper or a non-conductive material. It provides additional routing space for signals and power.
- Bottom layer: This layer is the bottommost layer of the PCB and is also typically made of copper. It serves as the secondary conductive layer, carrying signals and power throughout the board.
- Flex layers: These layers are made of a flexible material, such as polyimide, and are sandwiched between the rigid layers. They allow the PCB to bend and twist while maintaining its shape and functionality.
The stackup may also include additional layers, such as a ground plane or power plane, depending on the specific requirements of the PCB design.
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