Abstract

TFSOI (Thin-Film Silicon-On-Insulator) technology has made significant progress recently. In this work, the titanium SALICIDE (Self-Aligned siLICIDE) process has been studied, optimized and applied on a CMOS-compatible TFSOI technology for low-voltage, low-power microwave applications. The gate sheet resistance and total source/drain series resistance of a TFSOI NMOSFET with a 80 nm thick active silicon layer are 6.2 Ω/square and 700 Ω.μm, respectively, with a 30 nm thick titanium disilicide on both the gate and source/drain areas. The maximum oscillation frequency, f max, of a 0.75 μm TFSOI NMOSFET fabricated with this technology is equal to 11 GHz for a supply voltage of 0.9 V.

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