A first implementation of an automated reel-to-reel fluidic self-assembly machine

Se-Chul Park; Jun Fang; Shantonu Biswas; Mahsa Mozafari; Thomas Stauden; Heiko O Jacobs

doi:10.1002/adma.201401573

A first implementation of an automated reel-to-reel fluidic self-assembly machine

Adv Mater. 2014 Sep 10;26(34):5942-9. doi: 10.1002/adma.201401573. Epub 2014 Jun 27.

Authors

Se-Chul Park¹, Jun Fang, Shantonu Biswas, Mahsa Mozafari, Thomas Stauden, Heiko O Jacobs

Affiliation

¹ University of Minnesota, Electrical and Computer Engineering, Rm. 4-178, 200 Union St. SE, Minneapolis, MN, 55455, USA.

Abstract

A first automated reel-to-reel fluidic selfassembly process for macroelectronic applications is reported. This system enables high-speed assembly of semiconductor dies (15 000 chips per hour using a 2.5 cm-wide web) over large-area substrates. The optimization of the system (>99% assembly yield) is based on identification, calculation, and optimization of the relevant forces. As an application, the production of a solid-state lighting panel is discussed, involving a novel approach to apply a conductive layer through lamination.

Keywords: flexible electronics; fluidic self-assembly; reel to reel process; solid state lighting.

Publication types

Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.