Your Search Results

Use this resource - and many more! - in your textbook!

AcademicPub holds over eight million pieces of educational content for you to mix-and-match your way.

Experience the freedom of customizing your course pack with AcademicPub!
Not an educator but still interested in using this content? No problem! Visit our provider's page to contact the publisher and get permission directly.

Non-linear transient current in thin polyimide films prepared by vapor deposition polymerization

By: Sonehara, S.; Yoda, S.; Miyairi, K.;

1997 / IEEE / 0-7803-3851-0

Description

This item was taken from the IEEE Conference ' Non-linear transient current in thin polyimide films prepared by vapor deposition polymerization ' Two kinds of thin polyimide films are prepared by vapor deposition polymerization. One is annealed in air, and the other is annealed in a vacuum during imidization procedure. We have investigated electrical conduction in the two kinds of samples with low frequency voltage, and the difference between them have been discussed from the view point of ionic conduction. The samples annealed in air shows lead of current phase that due to the accumulated ionic space charge in the vicinity of the Al oxide layer at the Al-polyimide boundary. The samples annealed in a vacuum show lower conductivity and an anomalous current peak. The mechanism responsible for the current peak has been discussed in terms of diffusion and drift of space charges accumulated near the electrodes.