Flex Circuit Materials

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.

Flex circuit materials.

Fr 4 and prepreg combine to make up the insulating layers in the rigid portion of a rigid flex circuit. All the materials in multilayer flex laminates must be chosen to combine mechanical flexibility with sufficient electrical performance. Materials in flat flexible circuits include bare copper tin plated copper acrylic pressure sensitive adhesives polyester photoinduced electron transfer polyethylene naphthalate tin. Although they are small and light weight they are durable and capable of handling high density.

Each element of the flex circuit construction must be able to consistently meet the demands placed upon it for the life of the product. The conductor layer is usually made of copper of thickness varying from oz. 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.

Materials used for flex circuit boards. 9 µm to 10 oz. 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. The tight bending radii present in many design configurations require flexible metal layers with high electrical conductivity.

We can use flexible circuits in a variety of applications. Flat flexible circuits are able to fold into nearly any shape due to their flexibility and smaller size. It s important to be aware of the materials used in flexible and rigid flex circuits. All flex is a flexible printed circuits manufacturer that has consistently delivered high quality flex circuits for two decades.

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. Flexible circuits pose unique challenges for metallization. Insulator materials polyimide film is the most common insulator material used for flex circuits. Different forms of copper may be used including half hard rolled annealed and electro deposited.

Flex circuit materials and construction. Typical single layer flex circuit stack up. The conductive layer may also be made of alternate materials such as beryllium. They absorb shock and vibration easily in high stress applications.

They can safely bend into small and complicated electronics making them suitable for modern devices like smartphones.