Scalability of Roll-to-Roll Gravure-Printed Electrodes on Plastic Foils

被引:138
作者
Noh, Jinsoo [1 ]
Yeom, Dongsun [2 ]
Lim, Chaemin [1 ]
Cha, Hwajin [2 ]
Han, Jukyung [2 ]
Kim, Junseok [1 ]
Park, Yongsu [1 ]
Subramanian, Vivek [3 ]
Cho, Gyoujin [1 ]
机构
[1] Sunchon Natl Univ, Dept Printed Elect Engn, WCU Program & Chem Engn, Jeonnam 540742, South Korea
[2] Paru Corp, Printed Elect Res Inst, Jeonnam 540813, South Korea
[3] Univ Calif Berkeley, Dept Elect Engn & Comp Sci, Berkeley, CA 94720 USA
来源
IEEE TRANSACTIONS ON ELECTRONICS PACKAGING MANUFACTURING | 2010年 / 33卷 / 04期
关键词
Printed electronics; roll-to-roll (R2R) gravure printing; scalability model; silver printed electrode; ACTIVE-MATRIX DISPLAYS; TRANSISTORS; PROGRESS; FLOW; TAGS;
D O I
10.1109/TEPM.2010.2057512
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Roll-to-roll (R2R) gravure printing is considered to be a leading technology for the production of flexible and low-cost printed electronics in the near future. To enable the use of R2R gravure in printed electronics, the limits of overlay printing registration accuracy (OPRA) and the scalability of printed features with respect to the physical parameters of the gravure system, including given plastic substrates and inks, should be characterized. Important parameters of printed lines include surface roughness, thickness, line widening, and line-edge roughness. To date, there are no comprehensive reports regarding the limits of OPRA and the scalability of printed electrodes, including the control of surface roughness, thickness, line widening, and line-edge roughness using R2R gravure printing. In this paper, we examine ways of evaluating the OPRA limit of our gravure system. We find that OPRA is limited in the web moving direction to 40 mu m and in the perpendicular direction to 16 mu m, showing the importance of web handling on registration. Furthermore, we demonstrate the scalability of printed electrodes formed using a R2R gravure system to linewidths of 317 mu m, with 440 nm thickness, 30 nm of surface roughness and edge waviness of 4 mu m on PET foils, and describe optimization strategies to realize improved surface roughness, thickness, line widening, and line-edge roughness for future printed electronics applications.
引用
收藏
页码:275 / 283
页数:9
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