To open the Layer Stack Manager select Design » Layer Stack Manager from the main menus of the PCB editor. The Layer Stack Manager brings together all of these layer-specific design requirements into a single editor. There are also numerous other design considerations that come into play when designing a modern, high-speed PCB, including layer-pairing, careful via design, possible back drilling requirements, rigid/flex requirements, copper balancing, layer stack symmetry, and material compliance. No longer just a series of simple copper connections that transfer electrical energy, the routing of many modern PCBs is designed as a series of circuit elements, or transmission lines.Īchieving a successful, high-speed PCB design is a process of balancing the material selection and layer stackup and assignment, against the routing dimensions and clearances required to achieve suitable single-sided and differential routing impedances. The definition of the PCB layer stack is a critical element of successful printed circuit board design. Learn more about Rigid-Flex Design The Layer Stack Manager To do this, the designer must be able to define multiple PCB layer stacks and assign different layer stacks to different zones of the rigid-flex design. Since it is fabricated as a single entity, any type of board, including a rigid-flex board, must be designed as a single entity. In printed circuit board design, the layer stack defines how the layers are arranged in the vertical direction, or Z plane. By joining rigid sections of PCB together via flexible sections, complex, hybrid PCBs can be designed that can be folded to fit into unusually shaped enclosures. Technological innovation and refinements in the processing technology have led to a number of revolutionary concepts in PCB fabrication, including the ability to design and manufacture flexible PCBs. On the right is a rigid-flex PCB, where rigid sections are connected via flexible sections of PCB.įast forward to today, where almost all PCB designs have multiple copper layers. Connections are formed in the copper layer(s) as conductive traces by etching away (removing) unwanted copper.Ī single-sided PCB is shown on the left, typical of early PCB design. In the early days of printed circuit board (PCB) manufacturing, the board was simply an insulating core layer, clad with a thin layer of copper on one or both sides. ![]() The PCB is designed and formed as a stack of layers. ![]()
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