• Share
  • Email
  • Embed
  • Like
  • Save
  • Private Content
Roll-to roll printing; making new forms of displays, solar cells and other technologies economically feasible
 

Roll-to roll printing; making new forms of displays, solar cells and other technologies economically feasible

on

  • 1,791 views

These slides summarize technological trends in roll-to roll printing and how this new form of printing is making new forms of displays, solar cells, and other new technologies. Just like newspapers ...

These slides summarize technological trends in roll-to roll printing and how this new form of printing is making new forms of displays, solar cells, and other new technologies. Just like newspapers and magazines that can be printed merely by passing them over rollers that contain the patterns, new forms of displays, solar cells, and other technologies can be roll printed and thus can be cheaply manufactured. Equipment for roll-to roll printer is cheaper than for typical panels such as LCDs. it also benefits from increasing the scale of the substrates and equipment just as LCDs have done.

Statistics

Views

Total Views
1,791
Views on SlideShare
1,791
Embed Views
0

Actions

Likes
0
Downloads
37
Comments
0

0 Embeds 0

No embeds

Accessibility

Categories

Upload Details

Uploaded via as Adobe PDF

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
    Processing…
Post Comment
Edit your comment

    Roll-to roll printing; making new forms of displays, solar cells and other technologies economically feasible Roll-to roll printing; making new forms of displays, solar cells and other technologies economically feasible Presentation Transcript

    • A/Prof Jeffrey FunkDivision of Engineering and Technology Management National University of Singapore
    • This is the Fifth Session in MT5009Session Technology1 Objectives and overview of course2 Two types of improvements: 1) Creating materials that better exploit physical phenomena; 2) Geometrical scaling3 Semiconductors, ICs, electronic systems4 MEMS and Bio-electronic ICs5 Lighting and Displays (also roll-to roll printing)6 Nanotechnology, 3D printing and DNA sequencing7 Human-computer interfaces8 Superconductivity, fusion, energy storage9 Solar cells, wind turbines10 Telecommunications and Internet
    • Roll to Roll Printing Relevant for many technologies  Organic displays including flexible ones  Organic solar cells  Integrated Circuits (maybe with organic materials) Advantages  Very low cost Disadvantages  Much lower resolution than some techniques such as photolithography Challenges  Find materials that can be easily roll printed and that have the necessary electronic and other characteristics  For example, nano-particles are a major topic
    • Roll-to roll (R2R) printingIntroduction to Printed Electronics and Intelligence, Jukka Hast
    • R2R Process for Manufacturing Active Matrix Backplanes Based on Plasma Processing and Self-Aligned Imprint Lithography deposition imprint etch Vacuum deposition of Multiple mask Patterning completed metals, dielectrics, & levels imprinted w/ wet & dry semiconductors as single 3D processes structure 5μConventional Photo-Lithography SAIL deposit deposit imprint etch strip/clean spin resist align/expose etch etch mask develop Source: Roll-to-Roll Manufacturing of Flexible Displays, Hewlett Packard, Phicott
    • SAIL solves alignment problem & saves money Web cost Strip-off 2P RIE etch oxide Multiple Under-cut Al (1-3 um) RIE etch n+ photoresist applications Wet etch Cr R2R SAIL Thin down 2P (clear gate-pad) dominate photolithography RIE etch n+&Si&SIN Pre-Cr-etch Cleaning process materials costs Thin down 2P (clear gate-pad) Plasma etch Al RIE etch oxide RIE etch n+&Si&SIN Wet etch Cr Imprint SAIL structure SD metal deposition (Cr) PECVD oxide/nitride/Si/N+ deposition Gate metal deposition (Al) Condition web (de-hydro) Backplane materials costs $0.0 $0.5 $1.0 $1.5 $2.0 $2.5 for R2R photolith & SAIL Web cost $18.00 Cost of Patterning Align and Expose R2R photolith (AGI) $16.00 Sputter Dep Interconnect $14.00 cost per ft2 Align and Expose $12.00 Sputter Dep/ ITO $10.00 Align and Expose $8.00 Ultrasonic Clean Si RIE & Resist Strip $6.00 Align and Expose $4.00 SiN, a-Si, N+ dep $2.00 Align and Expose $0.00 Sputter Gate 1 Metal Photolithography SAIL Web preparation $0.0 $0.5 $1.0 $1.5 $2.0 $2.5 $3.0
    • Equipment Cost Comparison for Different Levels of Scale (comparison made at equal throughput) equipment cost scaling comparison: panel stepper vs R2R imprinter 0 10 equipment cost [M$] / throughput [cm 2 / S] -1 10 -2 10 100 mm R2R imprinter 330 mm R2R imprinter -3 10 2 3 4 5 6 7 8 9 10 generationScaling similar for R2R printer and panel stepper; cost much lower for R2R Source: Roll-to-Roll Manufacturing of Flexible Displays, Hewlett Packard, Phicott
    • PECVD Scaling: R2R photovoltaic compared to LCD panel (comparison made at equal throughput) 0 equipment cost scaling comparison: panel CVD vs R2R CVD 10 equipment cost [M$] / throughput [cm2 / S] -1 10 330 mm R2R PECVD 1 m R2R PECVD -2 10 1 2 3 4 5 6 7 8 9 10 generationPECVD: plasma enhanced chemical vapor deposition. Again; benefits from scalingsimilar for R2R and panel; cost much lower for R2R Source: Roll-to-Roll Manufacturing of Flexible Displays, Hewlett Packard, Phicott
    • R2R (L) equipment is still smaller than flat panel display ones (R) 330mm imprint system Gen10 cluster tool Source: Roll-to-Roll Manufacturing of Flexible Displays, Hewlett Packard, Phicott
    • Evolution of R2R tool development13” production solar cell deposition 13” wet etcher 13” imprinter 4” imprinter 10” drum PECVD 13” RIE 2005 2006 2007 2008 2009
    • Conclusions and Relevant Questions forYour Projects Roll-to roll printing can be much cheaper than other forms of printing (e.g., photolithographic) and its performance is undergoing rapid improvements These advantages will increase as the scale of R2R printers are increased What do these trends mean for  Organic displays including flexible ones  Organic solar Cells  Integrated Circuits (maybe with organic materials)  Other applications? How will roll-to roll printing impact on the cost and thus the usage of these technologies?
    •  Appendix
    • http://deviceguru.com/euro-project-slashes-flexible-display-costs/ Light emitting electrochemical cells http://www.oled-info.com/tags/technical- research/frontplane/roll-roll
    • Observatory NanoICT Sector Focus ReportPrinted ElectronicsApril 2010
    •  What kinds of materials can be roll printed? Do these materials have the right characteristics for the electronic product? Applications: flexible displays, organic solar cells, amorphous silicon thin- film transistors, liquid crystal displays, or solar- powered flexible displays