| abstract |
A process for fabricating an electronic device on a non-conductive polymer substrate (10), particularly from the family of polyaniline, comprises applying a covalent doping agent (18), such as an R?+ donor compound, where R is an organic group, e.g., methyl iodide, to a preselected portion (16) of a base-type non-conductive polymer substrate containing carbon-nitrogen linkages, via methods such as step (b) which uses a cut-out (14) in a mask (12). Converting such preselected portions of the polymer substrate to an electrically conductive polymer portion (20), by covalent linkage of the R groups of such donor compounds, to nitrogen atoms of the non-conductive polymer substrate. Insulating regions (22) remain in undoped areas. Electronic devices, such as resistors (24), capacitors, inductors, printed circuits and the like, can be provided by the inventive process, in the form of light-weight polymers containing no metal, that are stable and where the conductive portions are non-diffusing. |