Title :
A 400μW, 4.7–6.4GHz VCO under an above-IC inductor in 45nm CMOS
Author :
Borremans, Jonathan ; Carchon, Geert ; Wambacq, Piet ; Kuijk, Maarten ; Muller, Philippe ; Soussan, Phlippe ; Decoutere, Stefaan
Author_Institution :
IMEC, Leuven
Abstract :
A 4.7-to-6.4 GHz VCO is designed in 45 nm bulk CMOS using an above-IC inductor on top of the active circuitry, yielding 28% area reduction. The inductor is shielded from the circuitry, using the top metal layers of the CMOS back- end, which enables the proposed 3D integration for low-cost performance extension. The fully integrated VCO consumes just 400 muW, achieves a FoM of 185 dB, and occupies and area of only 0.12 mm2.
Keywords :
CMOS integrated circuits; inductors; microwave integrated circuits; voltage-controlled oscillators; 3D integration; CMOS; above-IC inductor; frequency 4.7 GHz to 6.4 GHz; integrated VCO; power 400 muW; size 45 nm; top metal layers; voltage-controlled oscillators; Active inductors; Circuits; Copper; Passivation; Q factor; Radio frequency; Substrates; Thin film inductors; Transistors; Voltage-controlled oscillators;
Conference_Titel :
Electronic Components and Technology Conference, 2008. ECTC 2008. 58th
Conference_Location :
Lake Buena Vista, FL
Print_ISBN :
978-1-4244-2230-2
Electronic_ISBN :
0569-5503
DOI :
10.1109/ECTC.2008.4549964
