Electronics embedded in foil is an enabling technology for flexible electronics and for special form factors of electronic components. In contrast to strictly printed electronics, Hybrid Systems-in-Foil (HySiF), comprising thin flexible, embedded chips and large-area thin-film electronic elements, feature a versatile and reliable technological solution for industrial applications of flexible electronics. This paper provides a comprehensive overview of HySiF technology, including aspects of thin-chip fabrication, reliability and assembly. Also presented is an industrial demonstrator utilizing such a HySiF component. (C) 2015 Elsevier Ltd. All rights reserved.