銅どう箔はく

noun

copper foil

Thin sheet of copper, often used in electroplating, shielding, or crafting.

• プリント基き板ばんには銅どう箔はくが使つかわれている。

  Copper foil is used in printed circuit boards.

noun

copper layer

Specifically the copper conductive layer in printed circuit boards.

• この基き板ばんの銅どう箔はくは厚あつさが35ミクロンだ。

  The copper layer on this board is 35 microns thick.