Study on electrical characteristics of fluorinated polyimide film

The electrical characteristics (I-V and I-t) of fluorinated polyimide diele ctric films were measured as function of time, electric field and sample te mperature and the results were discussed in view of existing conduction and charge-transport mechanisms. Experiments and analysis to elucidate conduct ion mechanisms at low and high electric fields were carried out. The result s are presented and discussed. It is concluded that the bulk-limited Pool-F renkel conduction mechanism is likely to dominate for the steady state curr ent at high electric field above 1 MV cm(-1), and in the range of low elect ric field below 1 MV cm(-1), the Ohmic conduction is the main conduction me chanism. (C) 1998 Kluwer Academic Publishers.