Fully printed organic CMOS technology on plastic substrates for digital and analog applications

Abstract

Drastic efforts have been realized these last years in order to develop comple mentary organic technology. This is the essential key to produce elementary low cost circuits for digital and analog applications. Different techniques are available nowadays to obtain both Nand/or P-type organic devices. Screen printing is one of the most highly awaited low-cost techniques that can be used to produce organic devices and circuits. It has been widely used in P-type organ ic technologies. Now that N-type semiconductors have become much more easily processed, developers are seeking a complete CMOS and lifetime robust technology. Many previous works have reported on a complete solution based on CMOS technology. Large-area-compatible organic processes have also been demonstrated. Nevertheless some of the technological steps in these latter reports are not fully printed and/or still present some lithography/vacuum deposition steps. We present here a complete fully printed CMOS technology on flexible substrates showing acceptable device performanc es and digital/analog circuit functionalities, which can lead to more complex designs.