By Hagen Marien
This ebook offers perception into natural electronics know-how and in analog circuit suggestions that may be used to extend the functionality of either analog and electronic natural circuits. It explores the area of natural electronics know-how for analog circuit purposes, in particular shrewdpermanent sensor platforms. It makes a speciality of all of the construction blocks within the info course of an natural sensor approach among the sensor and the electronic processing block. Sensors, amplifiers, analog-to-digital converters and DC-DC converters are mentioned intimately. assurance comprises circuit options, circuit implementation, layout judgements and dimension result of the development blocks described.
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Extra info for Analog Organic Electronics: Building Blocks for Organic Smart Sensor Systems on Foil
05 0 −20 −15 −10 −5 0 5 VG [V] Fig. , with ambient exposure to H2 O and O2 in the air, and to light and temperature fluctuations (Street et al. 2006). The gate contact and the drain contact have been biased with −15 V. The effect is mostly a shift of the VT unprotected pentacene transistors that were shelved in dark under ambient conditions. 8 V shift of VT after nine months shelving. This shift is reversible when the transistors are shelved in a vacuum environment. Encapsulation of the circuits directly after the production with a hydrophobic material is introduced in Pannemann et al.
The foil is glued on top of a rigid carrier, which is typically a Si wafer. After the production process the foil is delaminated from the carrier and the flexible foil with the circuits is left over. 28 2 Organic Thin-Film Transistor Technology Pentacene 100nm 30nm Au 350nm 30nm Au S D Met2 Organic Insulator Met1 G Z 25µm PEN Substrate Y X Fig. 11 Cross-sectional schematic view of a transistor architecture in the pentacene transistor technology. The S, D, and G contacts correspond to the source, drain, and gate of the transistor The technology is extensively elaborated in Gelinck et al.
A reactive Al layer is deposited that reacts with the semiconductor layer. Self-aligned source and drain contacts are formed without overlap with the gate. 4 Technology in This Work The existing organic electronics technologies are all very novel and undergo processing changes along the road that improve the transistor behavior. Consequently, it is often difficult to compare circuits fabricated in different technologies. Therefore, it is important to start this dissertation about integrated organic circuits with a brief overview on the applied technology and its features.