Friday, November 26, 2010

Flexible Circuits - Advantages and Applications

Flexible electronics is a technology for assembling electronic circuits by mounting electronic devices on flexible high performance plastic substrates, such as polyimide. This post is about flexible electronics circuits advantages of flexible boards, and its emerging applications.


Advantages Of flexible Circuits

  1. Flexible circuitry reduces the size and weight of a finished product.
  2. It allows increased circuit density and eliminates bulky connections and wiring
  3. The added ability to fold the circuit expands the boundaries of design and packaging
  4. Flexible electronics assemblies may be shape, or to flex during its use.

Applications of Flexible Electronics Circuits

The researchers are entering into partnerships with physicians for development of flexible biomedical devices
that can be implanted in the human body in a more comfortable manner; for example, an implantable sensor
that will monitor electrical activity in the brain to help predict the onset of epileptic seizures. The device may also work in reverse, sending electric pulses that head off the seizures. This requires a device that will conform to the rippled geometry of the brain.

Flexible circuits are advantageous in numerous applications:

  1. Tightly assembled electronic packages, where electrical connections are required in three axes, such as cameras (static application)
  2. Electrical connections between sub-assemblies to replace wire harnesses, which are heavier and bulkier, such as in rockets and satellites
  3. Electrical connections where the assembly is required to flex during its normal use, such as folding cell phones (dynamic application)
  4. Electrical connections where board thickness or space constraints are driving factors
Flex circuits are often used as connectors in various applications where flexibility, space savings or production constraints limit the serviceability of rigid circuit boards or hand wiring. In addition to cameras, a common application of flex circuits is in computer keyboard manufacturing; today, most keyboards use flex circuits for the switch matrix.

65 comments:

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Soy Wax Candles said...

Flexible circuits idea is nice. They can be mold in any shape or design. But the question is that will they completely replaced old static circuits?

Graham said...

That would add a new layer of complexity to board layout. You would have to know just how it will be used and bent to be sure that components (non-flexible) won't stop it fitting where it's intended to go.

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Looks like a good setup! I have used flexable LED strips but havent seen full blown circuit boards like this before!!

jeff said...

Flexible Circuit will be a great breakthrough in technology. can't wait for future developments

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I'm looking forward on to that!How great technology works! It's a bit complicated to imagine but it can happen!We must be grateful we have that genius!

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Flexibility in circuits is a new concept with immense advantages and wide applications.

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Electric pulses that head off the seizures. This requires a device that will conform to the rippled geometry of the brain.
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In the brain to help predict the onset of epileptic seizures. The device may also work in reverse, sending electric pulses that head off the seizures. This requires a device that will conform to the rippled geometry of the brain.

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abbott.simth said...

Equipment is manufactured, the size of the board still makes a difference. Built with excellent quality material, these printed circuit board can be three-dimensionally wired.


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This growth can be expected to continue as new and innovative products, with increasingly demanding electronic requirements, challenge product designers to get ten pounds into a five pound bag.



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This time pressure can force short cuts. The result is a poorly designed product that will have numerous manufacturing and reliability issues for the duration of the product. Additionally, you will be forced to pay premium for quick turn production.

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abbott.simth said...

Without compromising on the performance. This required the engineer to improve the functionality and reliability of the circuits along with its flexibility. Flexible circuits are thus the solution to several spatial and orientation constraints earlier faced by fixed printed circuit boards.



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Whatever the drawbacks the monophonic tones had, their impotence in the development of ring tone formats and the flourishing of mobile music industry cannot be discounted.

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Applications include ultrasonic scalpels, electrode recording catheters, biopsy instruments, electric biopsy forceps and hundreds of other applications where sterile requirements dictate one time use.



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cost flexible circuits are made in the United States. These companies are using highly automated equipment and can compete with anyone in the world. Other US suppliers specialize in lower volume with high product mix production, an area that many overseas producers will struggle a


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Unfortunately, much of the design software available uses rigid PCB design rules and this can create manufacturing and functional problems for the flexible circuit.




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