Ultra thin flex pcb manufacturer

Flexible PCB


Flexible printed circuits offer a broad array of physical and electrical interconnect solutions that cannot be achieved with rigid printed circuit board solutions. At Hemeixinpcb, we offer a comprehensive range of flexible circuit manufacturing and circuit board assembly.

A flexible printed circuit board (FPC or FPCB) is a printed circuit board having a base material composed of polyester resin or polyimide resin. The flexible printed circuit board can be variously bent and folded according to the manufacturing needs of any particular application.

The basic portion of a rigid flexible PCB is a film, which is used to support circuits composed of copper pieces. The various manufacturing properties belonging to a flexible printed circuit board include: lightness, soft, thinness, smallness, ductility, flexibility, and high-wiring density. Accordingly, the flexible printed circuit board offers design freedom in electronic equipment, and in particular, saves an amount of wasted space, thereby downsizing the equipment. Therefore, the rigid flexible PCB is typically applied within tiny products, such as notebooks, mobile phones, personal digital assistants (PDAs) and information appliances (IA)

We offer kapton flexible pcb including :

  • Single or double-sided circuitry, sculptured flex PCB circuits
  • Adhesive-based and adhesiveless constructions
  • Surface finishes include anti-tarnish, immersion silver, tin, solder, electroplated nickel/gold, and ENIG
  • Film stiffeners/ Polyimide Stiffeners
  • EMI shielding
  • Stainless steel stiffeners
  • Aluminum Stiffeners
  • No MOQ/MOV prototype
  • Large format flexible circuit

Special offer pyralux flexible pcb including : 

  • Sculptured flexible PCB
  • Heavy copper flexible circuits, copper weight can be up to 10 OZ.
  • Polyimide flexible heaters
  • Kapton polyimide heaters
  • Long flexible circuit boards up to 2100mm
  • HDI flex PCB
  • Turnkey flex PCB
  • COB flex PCB
  • Wire bonding flex PCB
  • Quick turn flexible PCB

What is Flexible PCB

Flexible printed circuits, also known as flex circuits, are sometimes regarded as a printed circuit board (PCB) that can bend, when in reality there are significant differences between PCB’s and flex circuits when it comes to design, fabrication and functionality. One common mistake that designers make is to design a flexible circuit using the same rules as a PCB. Flex circuits require a unique set-up and have their own set of design rules that the Hemeixin team has termed “flex-izing” and have worked hard to perfect over the last many years.

Flexible PCB, which also called Flex PCB, Flexible circuit board or flex circuit, it consists of PI base material, adhesive layer, copper layer, coverlay and sometimes with stiffeners. Flexible PCBs are now being used widely to replace traditional FR4 PCB in various different applications due to the benefits from flex PCB specially. Although more expensive than a normal rigid PCB, the right design in the right application could save weight and time in assembly, coupled with the reliability which makes flexible circuit board a worthwhile consideration.

A flexible printed circuit consists of a metallic layer of traces, usually copper, bonded to a dielectric layer, usually polyimide. Thickness of the metal layer can be very thin (<.0001″) to very thick (> .010″) and the dielectric thickness can vary from .0005″ to .010″. Often an adhesive is used to bond the metal to the substrate, but other types of bonding such as vapor deposition can be used to attach the metal.

Because copper tends to readily oxidize, the exposed surfaces are often covered with a protective layer, gold or solder are the two most common materials because of their conductivity and environmental durability. For non-contact areas a dielectric material is used to protect the circuitry from oxidation or electrical shorting.

The number of material combinations that could go into a flexible printed circuit are nearly endless; current, capacitance, chemical and mechanical resistance, temperature extremes and type of flexing are just some of the criteria that impacts the material selections that best meet the functional needs. An experienced All Flex design engineer takes the critical requirements into consideration when designing a circuit to meet your needs.

Flexible printed circuit boards (FPC) has become a common component of electronic products due to its lightness and flexibility performance. It is widely used in smart terminal, wearable electronics, consumer, automotive, industrial and medical fields. The miniaturization and integrated function of electronics product development is driving FPC to fine line and multilayer design.

Flexible PCB Applications

flex circuits are used widely in everyday technology and electronics in addition to high-end, complex completed components. A few of the most prominent examples of flexible circuits usage is in modern portable electronics, devices, hard disk drives and desktop printers.

Flexible PCB are also used extensively in other applications and industries including:

  • Communications
  • Consumer Electronics
  • Automotive
  • Medical
  • Industrial
  • Aerospace
  • Military
  • Transportation

In transportation they are extensively used due to their improved resistance to vibrations and movement.


Basic Types of Flexible PCB

Flexible circuit applications typically include designs where the circuit wraps around other electrical subsystems or rests against the inside of an instrument enclosure. Therefore, the material options commonly available for these purposes have specific mechanical, thermal and chemical properties. So, it’s possible to adapt this layer depending on the desired performances (mechanical strength, temperature resistance, bending…).

  • Single sided flexible PCB
  • Double sided flexible PCB
  • Multi layer flexible PCB

Single sided flexible PCB

  • IPC 6013 - Type 1
  • Description:
    One conductive copper layer bonded between two insulating polyimide layers
    Example construction: coverlay/copper/flex core
  • Configurations:
    Single-sided access, dual-sided access, unsupported fingers
  • Flex Core Materials:
    Standard thicknesses: 1/2 mil to 3 mil in either adhesive or adhesiveless constructions
    Standard copper thicknesses: 1/3 oz to 2 oz in rolled annealed or electro deposited formats
  • Coverlays:
    Standard thickness: 1/2 mil to 2 mil polyimide, with 1/2 mil to 2 mil epoxy or acrylic adhesive
  • Stiffeners:
    Component support or ZIF connector thickness requirments
    Materials: polyimide, FR4, stainless steel, aluminum
  • PSA (pressure sensitive adhesives) available for attachment purposes
  • EMI/RF shielding films available
  • Applications:
    Suitable for either bend to fit or dynamic flex applications

Double sided flexible PCB

  • IPC 6013 - Type 2
  • Description:
    Two conductive copper layers with an insulating polyimide between and external polyimide insultaing layers
    Plated through-holes provide circuit connection between layers
    Example construction: coverlay/copper/flex core/copper/coverlay
  • Configurations:
    Single-sided access, two-sided access, castelated holes
  • Flex Core Materials:
    Standard thicknesses: 1/2 mil to 4 mil in either adhesive or adhesiveless contructions
    Standard copper thicknesses: 1/3 oz to 2 oz in rolled annealed or electro deposited formats
  • Coverlays:
    Standard thickness: 1/2 mil to 2 mil polyimide with 1/2 mil to 2 mil epoxy or acrylic adhesive
  • Stiffeners:
    Component support or ZIF connector thickness requirments
    Materials: polyimide, FR4, stainless steel, aluminum
  • PSA (pressure sensitive adhesives) available for attachment purposes
  • EMI/RF shielding films available
  • Applications:
    Bend to fit and dynamic flex applications (construction dependant)
    High-speed controlled impedance in surface micro strip configuration

Multi-Layer Flexible PCB

  • IPC 6013 - Type 3
  • Description:
    Three or more flexible conductive layers with flexible insulating layers between each one and external polyimide insulating layers
    Plated through-holes provide circuit connection between layers
    Example construction: coverlay/copper/flex core/copper/adhesive/flex core/copper/coverlay
  • Configurations:
    Single-sided access, two-sided access, castelated holes
  • Flex Core Materials:
    Standard thicknesses: 1/2 mil to 4 mil in either adhesive or adhesiveless contructions
    Standard copper thicknesses: 1/3 oz to 2 oz in rolled annealed or electro deposited formats
  • Coverlays:
    Standard thickness: 1/2 mil to 2 mil polyimide with 1/2 mil to 2 mil epoxy or acrylic adhesive
  • Stiffeners:
    Component support or ZIF connector thickness requirments
    Materials: polyimide, FR4, stainless steel, aluminum
  • PSA (pressure sensitive adhesives) available for attachment purposes
  • EMI/RF shielding films available
    Applications:
    Bend to fit only
    High-speed controlled impedance in surface micro strip or stripline configurations

With a large number of investments on the facilities of flexible printed circuit board and continuously innovating the flexible circuit board manufacturing technology, Hemeixin is able to manufacture flexible PCBs with a great variety of technologies, from simple single sided flex PCB, double sided flex PCB to complex multilayer flexible PCB, and support prototype FPC with laser cutting & flying probe test to mass production with toolings.

For all things PCB, everywhere from Rigid PCBs & HDIs, Rigid-Flexible & Flex PCBs and HDIs, to Electronic Parts’ Kits & Circuit Board Assembly and Quick Turn PCB, you’re provided the options of either standard, fast, or express delivery. View our full PCB prototype assembly-delivery services here.

To find out further information regarding our services as a PCB assembly or flexible circuit manufacturer, make an enquiry or for an online quote, please fill out our online form here or contact us via Skype or This email address is being protected from spambots. You need JavaScript enabled to view it..

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