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• Bindal, Ahmet; Hamedi-Hagh, Sotoudeh 2006-01-01 This three-dimensional exploratory study on vertical silicon wire MOS transistors with metal gates and undoped bodies demonstrates that these transistors dissipate less power and occupy less layout area while producing comparable transient response with respect to the state-of-the-art bulk and SOI technologies. The study selects a single metal gate work function for both NMOS and PMOS transistors to alleviate fabrication difficulties and then determines a common device geometry to produce an OFF current smaller than 1 pA for each transistor. Once an optimum wire radius and effective channel length is determined, DC characteristics including threshold voltage roll-off, drain-induced barrier lowering and sub-threshold slope of each transistor are measured. Simple CMOS gates such as an inverter, two- and three-input NAND, NOR and XOR gates and a full adder, composed of the optimum NMOS and PMOS transistors, are built to measure transient performance, power dissipation and layout area. Simulation results indicate that worst-case transient time and worst-case delay are 1.63 and 1.46 ps, respectively, for a two-input NAND gate and 7.51 and 7.43 ps, respectively, for a full adder for a fan-out of six transistor gates (24 aF).

Worst-case power dissipation is 62.1 nW for a two-input NAND gate and 118.1 nW for a full adder at 1 GHz for the same output capacitance. The layout areas are 0.0066 μm 2 for the two-input NAND gate and 0.049 μm 2 for the full adder circuits • Annema, Anne J.; Geelen, Godefridus Johannes Gertrudis Maria 2001-01-01 A high-voltage level tolerant transistor circuit, comprising a plurality of cascoded transistors, including a first transistor (T1) operatively connected to a high-voltage level node (3) and a second transistor (T2) operatively connected to a low-voltage level node (2). The first transistor (T1) • Y.C.Wong; Syafeeza A. Hamid 2015-01-01 Optimization of a circuit by transistor sizing is often a slow, tedious and iterative manual process which relies on designer intuition. It is highly desirable to automate the transistor sizing process towards being able to rapidly design high performance integrated circuit. Trafareti ovoschej i fruktov dlya virezaniya iz bumagi. Presented here is a simple but effective algorithm for automatically optimizing the circuit parameters by exploiting the relationships among the genetic algorithm's coefficient values derived from the analog circuit desig.

• 2008-01-01 A control unit, for controlling a threshold voltage of a circuit unit having transistor devices, includes a reference circuit and a measuring unit. The measuring unit is configured to measure a threshold voltage of at least one sensing transistor of the circuit unit, and to measure a threshold • Yoo, Hocheon; Ghittorelli, Matteo; Smits, Edsger C P; Gelinck, Gerwin H; Lee, Han-Koo; Torricelli, Fabrizio; Kim, Jae-Joon 2016-10-20 Ambipolar organic electronics offer great potential for simple and low-cost fabrication of complementary logic circuits on large-area and mechanically flexible substrates. Ambipolar transistors are ideal candidates for the simple and low-cost development of complementary logic circuits since they can operate as n-type and p-type transistors. Nevertheless, the experimental demonstration of ambipolar organic complementary circuits is limited to inverters. The control of the transistor polarity is crucial for proper circuit operation. Novel gating techniques enable to control the transistor polarity but result in dramatically reduced performances.