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Latest ppt on flexible electronics could be helpful for transparent electronics as well: Latest trend of electronics is illustrated
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Department of Electronics and Telecommunication Engineering
Azhar.A.SyedUnder the guidance of prof.H.M.Raza
Presents a Seminar on:
“Flexible Electronics”
FLEXIBLE ELECTRONICS
Outline:• Introduction to Flexible Electronics• Focused areas:
• Flexible Circuits boards (FCB’s)• Flexible electronic components• Flexible displays
• Manufacturing technology in brief• Future of flexible electronics• Applications• Advantages and disadvantages• Conclusion
FLEXIBLE ELECTRONICS
What is flexible electronics ?
Flexible electronics, also known as flex
circuits, is a technology for assembling
electronic circuits by mounting electronic
devices on flexible plastic substrates.
FLEXIBLE ELECTRONICS
Flexible Circuit boards
FLEXIBLE ELECTRONICS
Flex circuits are made up of
flexible plastic substrate
usually polyimide, Polyester or
thin sheets of glass
Flexible electronic components
Electronic components such as transistors
are being made from silicon nanomembrane
usually called TFT’s(thin film transistors).
Flexible resistors & capacitors structures
are shown diagrammatically usually called thin
flim resistors and thin flim capacitors
FLEXIBLE ELECTRONICS
Resistor Capacitor
FLEXIBLE ELECTRONICS
Lithium-ion flexible battery
Non volatile Memories
FLEXIBLE ELECTRONICS
Flexible Displays
Organic light-emitting diodes (OLEDs) are
normally used instead of a back-light for flexible
displays.
FLEXIBLE ELECTRONICS
Manufacturing of flexible circuits & devices
For the manufacturing of flexible electronics
“Roll to Roll” (R2R) processing inkjet printing
and soft lithography process is used.
FLEXIBLE ELECTRONICS
Steps of R2R processing
Layers materials and their thicknessBase material or substrate
1.Flexible polymer flim2. Polyethylene terephthalate3. Thin glass sheet
12-125 µm
Conductive path 1. Copper foil2. Polyester3. Graphene
200 nm
FLEXIBLE ELECTRONICS
Market Growth• The market for flexible, printed, and organic large-area electronics
is rapidly growing. Currently estimated at over $200M, the global
market is expected to increase to a $800M market by 2020.
FLEXIBLE ELECTRONICS
Future Flexible Electronic products
FLEXIBLE ELECTRONICS
1 3
2
Applications• Automotive field.
• Space crafts.
• Foldable displays.
• Military.
FLEXIBLE ELECTRONICS
Flexible solar cells
Flexible outwears
Samsung key note CES
FLEXIBLE ELECTRONICS
Stretchable Lithium ion battery
FLEXIBLE ELECTRONICS
Developed by University of llinois at Urbana
ADVANTAGES
light weightSmaller dimensions
requiredSpace savingFoldable and bendable
DISADVANTAGES
Initial investment may be expensive
Integration of components would be challenge for engineers
Precision machines required
FLEXIBLE ELECTRONICS
ConclusionFlexible electronics in future will play a part in
field of security, entertainment and may lead to
innovative applications
The demand for flexible electronic products at
present may not be noticed but upto 2020 there
would be huge demand and preference will be given
to the flexible products in market
FLEXIBLE ELECTRONICS
References
• [1] www.wikkipedia.org.in/flexibleelectronics
• [2] "Printed Circuit Techniques" by Cledo Brunetti and Roger W. Curtis (National
Bureau of Standards Circular 468 first issued 15 November 1947)
• [3] Gleskova, H., Wagner, S., Gasˇpar k, V. & Kova´cˇ, P. 150uC Amorphous
Silicon thin-Film Transistor technology for Polyimide Substrates. J.Electrochem.
Soc.148, G370-G374 (2001)
• [4] Cotema, coating machinery GmbH www.cotema.de
FLEXIBLE ELECTRONICS
Thank you for your attention
FLEXIBLE ELECTRONICS
Queries if any???