How to Manage Manufacturing Deviations. Identify • Contain • Assess • Authorise • Verify Control the change before the change controls the product. Why Formal Control Matters # Heading Caption 1 Protects configuration baseline Maintains a trusted reference for what was approved. 2 Prevents unapproved CAM, material or process changes Ensures changes follow the right
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Understanding IPC Class 2 and Class 3 Purpose • Performance • Application IPC performance classes communicate the assurance expected from the finished product. Class 1 subtitle: General electronic products lead: Function and cost dominate. footer: Focus: Basic function, affordability, availability Class 2 subtitle: Dedicated-service products lead: High performance and extended life, but interruption can be
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What a PCB Microsection Report Shows Purpose • Preparation • Evidence A PCB microsection is a prepared slice through a printed board or representative coupopn that is mounted, ground, polished and examined under magnification to expose hidden structures. What You Can See in a Microsection Callout Text Annular ring Copper pad surrounding the plated hole.
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What Should Be Included in a Certificate of Conformity? Purpose • Traceability • Accountability A CoC declares that the identified PCB shipment was manufactured, inspected and released against the controlled purchase order, drawing and specifications. WHAT was supplied? TO WHAT requirements? FROM WHICH production? WHO released it? Certificate of Conformity — sample certificate artwork at
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Why PCB Supplier Qualification Matters. Capability • Control • Repeatability • Risk A good PCB design is only as reliable as the process used to manufacture it. Same Fabrication Package Design & Specs Supplier A Criterion Result Mark Plating consistency Uniform copper thickness ✓ Registration accuracy Tight layer alignment ✓ Material control In-spec laminate and
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