Methodology for parameters extraction with undoped junctionless EZ-FETs

The junctionless EZ-FET is a simple FDSOI-like device that requires only two lithography levels and standard processing steps. With its simplified architecture and fabrication flow, and using undoped source and drain terminals, the device allows for a fast electrical evaluation of semiconductor films on insulators (SOI) and gate stacks. This paper describes an electrical model that reproduces the peculiar transfer characteristics of a junctionless EZ-FET. The model is then simplified to develop a pragmatic parameter extraction methodology. This methodology is experimentally validated and provides the electrical properties of SOI films (mobility, threshold voltage) for both electrons and holes.