一种半导体组件，包含半导体基材与至少一闸极堆栈。闸极堆栈系位于半导体基材上，且闸极堆栈包含至少一功函数导体与填充导体。功函数导体具有凹陷于其中。填充导体具有插塞部与覆盖部。插塞部系位于功函数导体之凹陷中。覆盖部覆盖功函数导体。

A semiconductor device includes a semiconductor substrate and at least one gate stack. The gate stack is present on the semiconductor substrate, and the gate stack includes at least one work function conductor and a filling conductor. The work function conductor has a recess therein. The filling conductor includes a plug portion and a cap portion. The plug portion is present in the recess of the work function conductor. The cap portion caps the work function conductor.