Advanced Screen Printing "Practical Approaches for Printable & Flexible Electronics"

Screen-printing is not a new technology in the printed circuit industry. However, the combinations of new paste materials and an advanced screen-printing process further increases the value of printable flexible electronics that cannot be made by the traditional photolithography process with copper foils. Additionally, more functionality from the circuits will be generated with new materials in the future. The paper shows an example of electronic sensor module made by multiple screen-printing processes with different ink pastes. All passive components of the circuit were formed by the screen-printing process. The new silver paste makes soldering possible directly with the conductor; therefore the active components are assembled by a standard soldering process that is not available for the traditional polymer thick film circuits.