Fine Line Screen Printing Yields as a Function of Physical Design Parameters

The current design trend in thick film hybrids is toward larger substrate size and narrower conductor lines. This paper documents the results of a study undertaken to determine the effect of line width and spacing, substrate size, and conductor length on the occurrence of common screen printing defects. Development of a screen printing test pattern and a data reduction software routine are also described. Recommendations for selection of line width/spacing and substrate size are presented.