A
Mining and refining of raw silicon wafers from quartz
B
Outsourced Semiconductor Assembly and Test facilities that package integrated circuits and test silicon wafers
C
Designing hardware chips without owning physical manufacturing plants
D
Regulating international trade tariffs for electronic components
Correct answer: (b) Outsourced Semiconductor Assembly and Test facilities that package integrated circuits and test silicon wafers
Explanation
OSAT stands for Outsourced Semiconductor Assembly and Test facilities, which package integrated circuits and test silicon wafers before end-product integration. Therefore, option B is correct.
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