Flex circuit substrate materials fall into 2 general categories adhesiveless and adhesive based.
Flexible circuit materials companies.
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.
Insulator materials polyimide film is the most common insulator material used for flex circuits.
These flexible circuit materials are available with 1 4 or 3 8 oz copper for super fine pitch flexible circuit applications of less than 1 mil line spacing and via.
Flat flexible circuits are able to fold into nearly any shape due to their flexibility and smaller size.
All the materials in multilayer flex laminates must be chosen to combine mechanical flexibility with sufficient electrical performance.
While most standard pcbs have a fiberglass or metal base flex circuit cores consist of a flexible polymer.
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.
Although they are small and light weight they are durable and capable of handling high density.
Fr 4 and prepreg combine to make up the insulating layers in the rigid portion of a rigid flex circuit.
Materials used in flex circuits.
Materials in flat flexible circuits include bare copper tin plated copper acrylic pressure sensitive adhesives polyester photoinduced electron transfer polyethylene naphthalate tin.
The tight bending radii present in many design configurations require flexible metal layers with high electrical conductivity.
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.
These materials have gained popularity for several reasons.
Tech etch uses this film as the base layer on single metal layer flex circuits and for inner layers of multilayer circuits.
The standard flexible circuit material uses 1 oz copper on this non polyimide proprietary molecularly flexible material for a total 3 mil thickness as flexible circuit substrate.
All flex is a flexible printed circuits manufacturer that has consistently delivered high quality flex circuits for two decades.
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.
Solutions in flex circuit stiffeners.
The designer needs to evaluate the flexible circuit design requirements to determine the best stiffener for the job.
The materials themselves are more expensive and they typically require more expensive machining operations.
It s important to be aware of the materials used in flexible and rigid flex circuits.
The majority of flex pcbs have a polyimide pi film as a substrate.
This blog post will provide a quick overview of common materials and constructions in flex and rigid flex pcbs.
