The investigation of recessed channel SOI devices

Recessed channel SOI devices were investigated. In this paper, the structure and processing of such devices is described in detail. The characteristics of a SOI MOSFET using recessed channel technology are much better than normal thick non-depleted and thin-film fully depleted SOI MOSFETs. The 0.15/spl sim/4.0 /spl mu/m recessed channel SOI MOSFETs with a silicon channel film of 70 nm and a source/drain silicon film of 160 nm are developed using a submicron process. The transconductance and drain current are increased by 40% more than thin-film fully depleted SOI MOSFETs.