noun
semiconductor integrated circuit
Technical term for an integrated circuit fabricated on a semiconductor substrate; used in electronics and computer engineering.
この半導体集積回路は、スマートフォンの心臓部です。
This semiconductor integrated circuit is the heart of the smartphone.
集積回路 is a broader term for any integrated circuit, while 半導体集積回路 specifies that it is built on a semiconductor material.
Compound of 半導体 (semiconductor) + 集積回路 (integrated circuit). A straightforward technical term with no historical uncertainty.