Cleanliness of Stencils and Cleaned Misprinted Circuit Boards Cleanliness of Stencils and Cleaned Misprinted Circuit Boards There are long-established standards and test methods for ionic cleanliness levels for bare printed circuit boards
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cleaning is a full and important production step. But even with the so-called no-clean manufacturing, it may be that these components must be cleaned to avoid malfunctions
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. The excess no-clean flux is located in an Ethernet port connector. The units pass all tests with no issues, however; we have recently had a couple of field returns where it was
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