超ちょう高こう純じゅん度ど

na-adjective, noun which may take the genitive case particle 'no'

ultrahigh purity

Technical term used in chemistry, materials science, and semiconductor manufacturing to describe substances with extremely low impurity levels.

• この実じっ験けんには超ちょう高こう純じゅん度どの試し薬やくが必ひつ要ようです。

  This experiment requires reagents of ultrahigh purity.

• 超ちょう高こう純じゅん度どなシリコンは半はん導どう体たいの製せい造ぞうに使つかわれる。

  Ultrahigh-purity silicon is used in semiconductor manufacturing.