Difficulty: Easy
Correct Answer: Correct
Explanation:
Introduction / Context:
Modern electronics leverage SMD to achieve high component density, reduced parasitics, and automated high-speed placement. This shift is fundamental to smartphones, wearables, and compact industrial electronics.
Given Data / Assumptions:
Concept / Approach:
By removing the necessity for through-holes and long leads, SMD allows both sides of the PCB to be densely populated. Package families (0402, 0603 passives; SO/TSSOP/QFN/DFN ICs) are designed specifically for density, enabling miniaturization and higher functional integration.
Step-by-Step Solution:
Verification / Alternative check:
Industry design rules and assembly house capabilities explicitly target fine-pitch SMT; historical trends show continuous footprint shrinkage with SMD adoption.
Why Other Options Are Wrong:
Common Pitfalls:
Assuming all SMD is inherently better; thermal dissipation and rework can be more challenging, but density gains remain undeniable.
Final Answer:
Correct
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