Hostname: page-component-78c5997874-t5tsf Total loading time: 0 Render date: 2024-11-10T09:07:02.718Z Has data issue: false hasContentIssue false

Principal Pilot Line Manufacturing Challenges and Solutions in Direct Fabrication of a-Si:H TFT Arrays on Flexible Substrates

Published online by Cambridge University Press:  01 February 2011

Shawn M. O¡¯Rourke
Affiliation:
shawn.m.orourke@asu.edu, Arizona State University, Flexible Display Center, 7700 S. River Parkway, ASU Research Park, Tempe, AZ, 85287-0808, United States
Douglas E. Loy
Affiliation:
doug.loy@asu.edu, Arizona State University, Flexible Display Center, 7700 S. River Parkway, ASU Research Park, Tempe, AZ, 85287-0808, United States
Curt Moyer
Affiliation:
curt.moyer@asu.edu, Arizona State University, Flexible Display Center, 7700 S. River Parkway, ASU Research Park, Tempe, AZ, 85287-0808, United States
Scott K. Ageno
Affiliation:
scott.ageno@asu.edu, Arizona State University, Flexible Display Center, 7700 S. River Parkway, ASU Research Park, Tempe, AZ, 85287-0808, United States
Barry P. O'Brien
Affiliation:
barry.obrien@asu.edu, Arizona State University, Flexible Display Center, 7700 S. River Parkway, ASU Research Park, Tempe, AZ, 85287-0808, United States
Edward J. Bawolek
Affiliation:
Ed.Bawolek@asu.edu, Arizona State University, Flexible Display Center, 7700 S. River Parkway, ASU Research Park, Tempe, AZ, 85287-0808, United States
Dirk Bottesch
Affiliation:
Dirk.Bottesch@asu.edu, Arizona State University, Flexible Display Center, 7700 S. River Parkway, ASU Research Park, Tempe, AZ, 85287-0808, United States
Michael Marrs
Affiliation:
michael.marrs@asu.edu, Arizona State University, Flexible Display Center, 7700 S. River Parkway, ASU Research Park, Tempe, AZ, 85287-0808, United States
Jeff Dailey
Affiliation:
jeff.dailey@asu.edu, Arizona State University, Flexible Display Center, 7700 S. River Parkway, ASU Research Park, Tempe, AZ, 85287-0808, United States
Rita Cordova
Affiliation:
rita.cordova@asu.edu, Arizona State University, Flexible Display Center, 7700 S. River Parkway, ASU Research Park, Tempe, AZ, 85287-0808, United States
Jovan Trujillo
Affiliation:
jovan.trujillo@asu.edu, Arizona State University, Flexible Display Center, 7700 S. River Parkway, ASU Research Park, Tempe, AZ, 85287-0808, United States
Jann Kaminski
Affiliation:
jann.kaminski@asu.edu, Arizona State University, Flexible Display Center, 7700 S. River Parkway, ASU Research Park, Tempe, AZ, 85287-0808, United States
David R. Allee
Affiliation:
david.allee@asu.edu, Arizona State University, Flexible Display Center, 7700 S. River Parkway, ASU Research Park, Tempe, AZ, 85287-0808, United States
Sameer Venugopal
Affiliation:
sameer.venugopal@asu.edu, Arizona State University, Flexible Display Center, 7700 S. River Parkway, ASU Research Park, Tempe, AZ, 85287-0808, United States
Gregory B. Raupp
Affiliation:
raupp@asu.edu, Arizona State University, Flexible Display Center, 7700 S. River Parkway, ASU Research Park, Tempe, AZ, 85287-0808, United States
Get access

Abstract

Principal challenges to direct fabrication of high performance a-Si:H transistor arrays on flexible substrates include automated handling through bonding-debonding processes, substrate-compatible low temperature fabrication processes, management of dimensional instability of plastic substrates, and planarization and management of CTE mismatch for stainless steel foils. In collaboration with our industrial and academic partners, we have developed viable solutions to address these challenges, as described in this paper.

Type
Research Article
Copyright
Copyright © Materials Research Society 2008

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Raupp, G. B. et al. , “Flexible Reflective and Emissive Display Integration and Manufacturing”, SPIE Symp. Proc. 5801, 194203 (2005).10.1117/12.609033Google Scholar
2. Wu, M. et al. , “Complementary Metal-Oxide-Semiconductor Thin-Film Transistors Circuits from a High-Temperature Polycrystalline Silicon Process on Steel Foil Substrates”, IEEE Trans. Elec. Dev. 49, 19932000 (2002).Google Scholar
3. Hong, Y. et al. , “Stainless Steel Foil Substrates: Robust, Low-cost, Flexible Active-Matrix Backplane Technology”, IMID Digest Paper 28.3, 892896 (2005).Google Scholar
4. Kattamis, A. Z. et al. , “AMOLED Backplanes of Amorphous Silicon on Steel Foils”, Proc. IDRC, pp. 108111 (2006).Google Scholar
5. Powell, M. J., “The Physics of Amorphous Silicon Thin-Film Transistors”, IEEE Trans. Elec. Dev. 36 (12), 27532763 (1989).10.1109/16.40933Google Scholar
6. Yang, C.-S. et al. , “Stability of low-temperature amorphous silicon thin film transistors formed on glass and transparent plastic substrates”, J. Vac. Sci. Technol. B 18 (2), 683689 (2000).10.1116/1.591259Google Scholar
7. Long, K. et al. , “Short channel amorphous silicon TFTs on high temperature clear substrates”, Proc. 62nd Device Res. Conf., pp. 8990 (2004).Google Scholar
8. Shin, P., presented at the USDC Flexible Displays and Microelectronics Conference, Phoenix, AZ, 2007 (unpublished).Google Scholar
9. Chung, I.-J., presented at the Plastic Electronics Conference, Frankfurt, Germany, 2007 (unpublished).Google Scholar
10. Street, R. A. et al. , “Comparison of TFT processes on plastic and metal foils”, Proc. 5th Intl. Flexible Displays and Microelectronics Conference, Phoenix, AZ (2006), Paper 4.2.Google Scholar
11. Stryahilev, D. et al. , “Amorphous silicon nitride deposited at 120 °C for organic light emitting display-thin film transistor arrays on plastic substrates”, J. Vac. Sci. Technol. 20 (3) 10871090 (2002).10.1116/1.1472423Google Scholar