Noise margin

We will use the circuit of the previous section and find the noise margins (NMH and NML) and input and output transition voltages (Vil, Vih, V0l, V0h)- The transfer function of the NMOS inverter of the previous section was found on page 225, and is repeated below with approximate values of VIL, Vih, Vql, V0h shown on the plot ... 

Amax = 10.7) and the noise margin (NM = 1.9 V) are also shown. The noise margin is defined as the side of the largest square that can be inscribed between the transfer characteristics and the characteristics obtained by exchanging input and output axes (thin dashed line). 

Original Noise Margin (Poor ) Improved Noise Margin... 

Takamiya, M., Sekitani, T., Kato, Y, Kawaguchi, H., Someya, T., and Sakurai, T., An organic FET SRAM with back gate to increase static noise margin and its application to braille sheet display, IEEE J. Solid-State Circuits, 42, 93-100, 2007. 

Circuit gain is higher, leading to larger noise margins in digital systems. Design methods are simpler. 

It is certainly possible to create a range of circuits without patterning the semiconductor layer, and in so doing, save one patterning operation. This is especially possible with logic elements, where it is often possible to achieve adequate noise margin even with some crosstalk, or where space is not of great concern and transistors can be well spaced. 

Despite the significant benefits such an approach increases circuit complexity. Complementary architectures [120], adopted from silicon microelectronics, can provide a solution to this bottleneck with major advantages in circuit performance including large noise margin, robustness, and low power dissipation. Unlike silicon technology, however, fabrication of discrete organic n- and p-channel transistors with lateral dimensions of few... 

CMOS inverters are that they can operate at relatively high speed with very Utde power loss and exhibit good noise margins in both low and high states. 

The redesigned input circuitry of LS logic changes the input logic thresholds, resulting in slightly reduced noise margin. 

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