Flex Circuit Materials

All the materials in multilayer flex laminates must be chosen to combine mechanical flexibility with sufficient electrical performance.

Flex circuit materials.

They absorb shock and vibration easily in high stress applications. Although they are small and light weight they are durable and capable of handling high density. The conductor layer is usually made of copper of thickness varying from oz. Flat flexible circuits are able to fold into nearly any shape due to their flexibility and smaller size.

Materials in flat flexible circuits include bare copper tin plated copper acrylic pressure sensitive adhesives polyester photoinduced electron transfer polyethylene naphthalate tin. Tech etch uses this film as the base layer on single metal layer flex circuits and for inner layers of multilayer circuits. In addition the material must work reliably in concert with the other elements of the flexible circuit construction to assure ease of manufacture and reliability. Common flex circuit material stack up below you will find some examples of common material stack ups for flex and rigid flex circuit board construction.

Enabling 5g networks and evs the laminate market is evolving to support the needs of high speed high frequency circuits that connect 5g networks and power the next generation of consumer electronics. Different forms of copper may be used including half hard rolled annealed and electro deposited. The tight bending radii present in many design configurations require flexible metal layers with high electrical conductivity. It s important to be aware of the materials used in flexible and rigid flex circuits.

Typical single layer flex circuit stack up. Flexible circuits pose unique challenges for metallization. The conductive layer may also be made of alternate materials such as beryllium. We can use flexible circuits in a variety of applications.

Each element of the flex circuit construction must be able to consistently meet the demands placed upon it for the life of the product. They can safely bend into small and complicated electronics making them suitable for modern devices like smartphones. Copper can be an ideal material when deposited in a manner that is compatible with the flexible circuit manufacturing process which is often done on roll to. If you are looking for more information about flex circuit construction methods we recommend seeing our technical article on the latest material and construction methods provide the highest.

Materials used for flex circuit boards. All flex is a flexible printed circuits manufacturer that has consistently delivered high quality flex circuits for two decades. Even though you may generally allow the fabricator freedom to select the materials based on your application ignorance will not protect you from field failures of the final product. We have responded to market demands and now offer heated circuits and deliver in high volume as well as prototypes from our two minnesota production facilities.

Fr 4 and prepreg combine to make up the insulating layers in the rigid portion of a rigid flex circuit.