Measurements on the electrical properties of transmission lines on flexible circuits

A flexible-circuit-packaging technology for TAB (tape automated bonding) devices has been explored. A Super-35 mm tape as a test vehicle has been designed, fabricated and tested to assess the electrical properties of the polyimide substrates and their advantages in packaging applications. Line geometries are referred to as used on typical TAB devices. The electrical design and characterization of the demonstrator are described in this paper.