This letter presents studies of several simple integrated circuits- n -channel metal-oxide semiconductor inverters, five-stage ring oscillators, and differential amplifiers-formed on thin, bendable plastic substrates with printed ribbons of ultrathin single-crystalline silicon as the semiconductor. The inverters exhibit gains as high as 2.5, the ring oscillators operate with oscillation frequencies between 8 and 9 MHz at low supply voltages (∼4 V), and the differential amplifiers show good performance and voltage gains of 1.3 for 500 mV input signals. The responses of these systems to bending-induced strains show that relatively moderate changes of individual transistors can be significant for the operation of circuits that incorporate many transistors.
Bibliographical noteFunding Information:
This work was supported by the Department of Energy (DEFG02-91ER45439) and used the Center for Microanalysis of Materials of the Frederick Seitz Materials Research Laboratory supported by the Department of Energy (DEFG02-91ER45439). Work in developing the differential amplifiers was partially supported by NextGen Aeronautics under Department of Defense Small Business Research Innovation Program (W31P4Q-05–C0308).
All Science Journal Classification (ASJC) codes
- Physics and Astronomy (miscellaneous)