A gate insulation layer may be interposed between the gate electrode and the fin of the semiconductor substrate.

栅极绝缘层置于所述栅极电极和所述半导体衬底的所述鳍之间。

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And because the gate and the insulation layer are formed right at the end of the chip-making process, after the high-temperature steps have been completed, it is possible to choose from a wider range of materials for the insulation layer.

ECONOMIST: Transistors: A tall story | The

Only when all the masking and etching is complete is the sacrificial gate layer dissolved away, allowing the gates (and the insulation layers between the gate and channel of each transistor) to be filled in.

ECONOMIST: Transistors: A tall story | The