noun
substrate; base material; matrix; backing; carrier
Technical term used in manufacturing, chemistry, electronics, and materials science for the underlying material that supports or is processed into a final product.
この基材の上に薄膜を形成する。
A thin film is formed on this substrate.
基材としてシリコンウェハーを用いる。
A silicon wafer is used as the base material.
Compound of 基 (base, foundation) and 材 (material, lumber). The exact historical derivation is uncertain, but the word follows standard Sino-Japanese word formation patterns.