Abstract
For the past several decades inkjet technology has been shown to be a useful tool for fabricating anything from three dimensional objects to electrical devices and biological sensors. From a manufacturing perspective, it is important to functionalize a substrate with material in as timely a manner as possible while maintaining optimal functionality and satisfying hardware limitations. Of particular interest in previous work has been the effect of drop coalescence on print quality. This work examines how coalescence affects the uniformity of printed pairs of drops and printed lines as well as the functional performance of printed lines of a Pd based ink on Silicon and oxidized Silicon substrates. The results indicate that the ink migration resulting from Marangoni flows can be minimized by avoiding coalescence of adjacently deposited drops, thus increasing film uniformity and improving functional performance.
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