Is it necessary to specify IPC performance class and circuit type on your fabrication drawing? While it is a VERY good idea, you do not have to specify those features. The circuit type should be obvious from the cross-sectional view that every good flex circuit drawing contains (you have one of those on your drawing, […]
Specifying Circuit Classes in Flex Circuit Drawings Read More »
While most flexible circuits are used in a relatively dry environment, there are applications where water contact or submersion is required. Knowing in advance what types of water contact variables can affect the performance of the flex will help you to create a successful design. You need to first evaluate the application and answer the
When Flex Circuits Meet Water: Critical Factors for Reliable Performance Read More »
There are many connectors and termination options that are manufactured specifically for use with flexible circuits and flat flexible cables. Zero insertion force (ZIF) connectors (Figure 1) and insulation displacement connectors (Figure 2) are both good examples. They offer reliable and inexpensive ways to terminate a flexible circuit. At the same time virtually any connector
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Q: Why are flex circuits more expensive than comparable rigid PCBs? What are the major costs drivers? A: The reason that flex circuits cost materials used to fabricate the circuits. First more than comparable rigid PCBs stems mainly from the of all, flex materials (i.e., clad and unclad polyimide film with or without acrylic adhesive)
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