Abstract
Inkjet printing enables the high-speed production of devices on a variety of substrates while offering an increased level of precision and repeatability. There is a need for closed-loop control over the printing process to achieve geometrical accuracy and consistent electrical performance of printed circuits and components. A sophisticated closed-loop control process can be achieved by establishing a relationship between printer input parameters and printed objects’ geometrical and electrical output. In this study, the impact of various printer settings on the electrical performance and geometrical accuracy of printed circuits and components has been studied. Specifically, the effect of print resolution, droplet size, and the number of copies on the electrical performance of printed resistors, planar inductors, and capacitors have been investigated. The printing was done using Particle-free silver ink on a Polyimide substrate. The statistical model developed from experimental data provides a means of achieving closed-loop control over the printing process.
