Title :
SOI circuits powered by embedded solar cell
Author :
Chen, Chang-Lee ; Chen, Chenson K. ; Vitale, Steven A.
Author_Institution :
Lincoln Lab., Massachusetts Inst. of Technol., Lexington, MA, USA
Abstract :
Solar cells embedded in the SOI substrate were successfully used as the sole energy source to power a ring oscillator fabricated using an ultra-low-power fully depleted SOI process on the same wafer. The speed of the ring oscillator increased with increasing light intensity and showed a fastest oscillation with a 4.5 ns stage delay and 0.26 fJ power-delay product. The maximum power generated by the solar cell was 9.6 mW/cm2 with an efficiency of 11.6%.
Keywords :
delays; embedded systems; oscillators; silicon-on-insulator; solar cells; SOI circuit; SOI substrate; embedded solar cell; light intensity; power delay product; ring oscillator power; sole energy source; ultra low power fully depleted SOI process; Metals; Optical buffering; Optical variables measurement; Photovoltaic cells; Ring oscillators; Substrates;
Conference_Titel :
SOI Conference (SOI), 2011 IEEE International
Conference_Location :
Tempe, AZ
Print_ISBN :
978-1-61284-761-0
Electronic_ISBN :
1078-621X
DOI :
10.1109/SOI.2011.6081793
