Flexible Circuit Technologies, Inc. Six-layer Rigid Flexible Circuits

A six-layer combination rigid flex circuit has six conductive copper layers. The two most common design types are as follows: Six-Layer Rigid Flex – Two flex layers and four rigid layers Six-Layer Rigid Flex – Four flex layers and two rigid layers Rigid flex circuits have been used in the military and aerospace industries for more than 20 years. In most rigid flex circuit boards, the circuitry consists of multiple flexible circuit inner layers selectively attached together using an epoxy pre-preg bonding film, similar to a multilayer flexible circuit. However, a multilayer rigid flex circuit incorporates a board externally, internally or both as needed to accomplish the design. Rigid flex circuits combine the best of both rigid boards and flexible circuits integrated together into one circuit. The two-in-one circuit is interconnected through plated thru holes. Rigid flex circuits provide higher component density and better quality control. Designs are rigid where extra support is needed and flexible around corners and areas requiring extra space. While the design options are endless when combining rigid boards with flexible circuits, we have provided you with rigid flex combinations that are most commonly utilized.