TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The field effect transistor device comprises a dielectric material comprising an organic dielectric material and/or an inorganic dielectric material.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Components: The liquid medium comprises water or an organic solvent and optionally one or more additives including viscosity modulators, detergents, dispersants, binding agents, compatibilizing agents, curing agents, initiators, humectants, antifoaming agents, wetting agents, pH modifiers, biocides and bactereriostats.    TECHNOLOGY FOCUS - POLYMERS - Preparation (Disclosed): Preparation of (Ia) comprises: fusing bithiophene compound of formula (A1) with n-butyllithium in the presence of dimethylformamide to afford dialdehyde compound of formula (OHC-A1-CHO) (I); reacting (I) with the methyltriphenylphosphonium iodide in the presence of n-butyllithium as a base to afford divinyl compound of formula (H2C=CH-A1-HC=CH2) (II); and reacting dibromo compound of formula (Br-W1x-Br) with (II) to afford the polymer (-(-W1x-HC=CH-A1-HC=CH-)n-), representative of (Ia).A1 = heterocyclic moiety of formula (Ib). Preferred Definitions:    Z = S; and    R1-R4 = H.    EXAMPLE - Tris(dibenzylideneacetone)dipalladium(0) (0.010 g, 0.011 mmol), and tris-o-tolylphosphine (0.007 g, 0.021 mmol) were added to the 100 ml round bottom flask and degassed for 3 times. After that, 2,6-dibromo-4-(2-hexyl-decyl)-4H-dithieno(3,2-b;2',3'-d)pyrrole (0.20 g, 0.36 mmol), 1-(dibutyl-((E)-2-tributylstannanyl-vinyl)-stannanyl)-butane (0.22 g, 0.36 mmol), and chlorobenzene (20 ml) were added and the mixture was stirred overnight at 130 degrees C. 2-Bromothiophene and 2-tributylstannylthiophene were added as end cappers, with 2-bromothiophene added first followed by 2-tributylstannylthiophene 2 hours later. After another 2 hours stirring, the reaction mixture was cooled to room temperature. The reaction solution was then added dropwise to 400 ml methanol, filtered, and then subjected to Soxhlet extraction with acetone to afford dithienopyrrole-vinyl polymers.