Date of download: 10/13/2017 Copyright © ASME. All rights reserved. From: Stretchable Thin Film Materials: Fabrication, Application, and Mechanics J. Electron. Packag. 2016;138(2):020801-020801-22. doi:10.1115/1.4032984 Figure Legend: (a) Flexible electronics with printed sensors (upper) and its bending performance (bottom). GMR is the abbreviation of giant magnetoresistance. (Reproduced with permission from Karnaushenko et al. [21]. Copyright 2015 by Wiley-VCH Verlag GmbH & Co. KGaA.) (b) Optical image of stretchable, ultrathin Si-CMOS circuit in folded state. The inset shows a schematic view of the cross section. (Reprinted with permission from Kim et al. [18]. Copyright 2008 by American Association for the Advancement of Science.) (c) Optical images of inorganic LEDs integrated on unusual substrates. Upper left is an LED array on a piece of paper. Its flat state is shown in the inset. Upper right is an LED array on a sheet of aluminum foil in a crumpled state. The inset shows the device in its flat state. Bottom left is the array on a catheter balloon in its deflated and inflated (inset) states. Bottom right shows images of a strip of LEDs on a rigid plastic tube (diameter ∼2.0 mm, left). Inset shows the magnified view of a single pixel. (Reproduced with permission from Kim et al. [22]. Copyright 2010 by Nature Publishing Group.) (d) A stretchable battery under large deformation. (Reprinted with permission from Xu et al. [14]. Copyright 2013 by Macmillan Publishers Ltd).