contact resistance

Terms for PCB board appearance and functional testing

Production Board is a PCB board that meets design drawings, specifications, and procurement requirements in one batch. As Received products undergo mechanical testing without conditioning. Test Board determines batch quality, Test Pattern is used for testing, and Quality Conformance Test Circuit assesses printed board quality. Visual examination of appearance and size includes detecting issues like Blister, Bulge, or Cracking. Electrical and non-electrical properties, such as Contact Resistance or Bond Strength, are also assessed. Prepreg materials and adhesive films are evaluated for parameters like Resin Flow or Tack Time.

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Final Coating Overview for PCB Surfaces

Important changes in final coating process for PCB manufacturing have been driven by the need to overcome limitations of HASL and increase use of HASL alternatives, with the goal of protecting the surface of circuit copper foil with a durable, conductive surface for component assembly through electroless nickel coating.

Final Coating Overview for PCB Surfaces Read More »

Final Coating Overview for PCB Surfaces

Important changes in final coating process for PCB manufacturing have been driven by the need to overcome limitations of HASL and increase use of HASL alternatives, with the goal of protecting the surface of circuit copper foil with a durable, conductive surface for component assembly through electroless nickel coating.

Final Coating Overview for PCB Surfaces Read More »

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