Understanding What “The Lead is Discernible” Really Means

Yes, this simple term “discernible” is still debated to this day by many in the electronics manufacturing industry and a continually confusing concept for new students to grasp. Used throughout IPC-A-610 and J-STD-001, understanding this definition is critical to the application of the standards and their principles to the production process. Join us for a brief moment as we once again bat around the concepts, definitions and implications of this term and try to give you a better foundation to build upon in understanding this misunderstood requirement.

Topics we will be reviewing are:

• The definition and meaning of “discernible”.
• The implication behind “discernible” as it relates to solder joints.
• The “See It” or “See the Results of It” concept.
• Examples and how to interpret the results.