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PCB Tombstoning: Causes, Prevention, and Solutions in Surface Mount Technology
Introduction to Tombstoning in PCB Assembly Printed Circuit Board (PCB) tombstoning, also known as the “Manhattan effect,” “drawbridging,” or “chip-standing,” is a common defect in surface mount technology (SMT) assembly that occurs when a passive component (typically a resistor or capacitor) stands up on one end during the reflow soldering process. This phenomenon creates an…