For instance which is the better deal; rigid flex or standard PCBs? To understand this you should look at some rigid flex PCB cost comparisons, and we have some ideas here for you that may help.
The Elephant in the Room Let’s get it out in the open right away; it almost always cost more to fabricate a rigid flex design than a regular printed circuit board. The fabrication of rigid PCBs (traditional FR4) is pretty standardized, but not so with flex.
Rigid-flex PCBs require specialized material, copper, and assembly. Flexible circuits will vary in their fabrication in the following ways: • Foil type and thickness • Base film type and thickness • Interlayer bonding methods and adhesives • Materials for mechanical support and their mounting A flex design will have due to how it was designed and what materials it was created with that are important to its usage. This uniqueness can change however from one vendor to another depending on how the vendors build the design. For instance, the different vendors may vary in the type of bond ply that is used which may, in turn, cause different behaviors when subjected to the specific application that the design was created for resulting in a failure. For many reasons like these, the bare cost of fabricating a flex design is often more expensive. It cost more to make sure that you are getting the precise design that you need.
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