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Cleanliness Requirements for Unpopulated Printed Boards
1 SCOPE
1.1 Statement of Scope
This document defines the recommended general requirements for the cleanliness of unpopulated (bare) single, double-sided or multilayer printed boards.
Printed board quality encompasses many different parameters, cleanliness being only one important parameter. This document should be used in conjunction with a larger printed board fabricator qualification matrix/effort.
1.2 Post Analysis Considerations
The testing described herein is considered non-destructive for most surface finishes, but will impact printed boards coated with organic solderability preservatives (OSPs).
It is recommended that the tested printed boards be baked to remove moisture following the ion chromatography extractions.
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