When screen-printing silver ink antennas onto automotive glass, clogged or stretched screens can cause partial breaks, full breaks, or thinning of the trace. Sometimes there isn't enough ink, or there are bubbles in the ink, which may lead to defects. If defects on antenna traces on automotive glass make it through a production process unnoticed, it leads to decreased or non-operational antennas, as well as lost time and production costs. Furthermore, due to the nature of the screen-printing process, when the system begins detecting "bad" parts, the manufacturer knows that often the entire lot is likely flawed.
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