Inner Spacer

09 FEOL Devices & Advanced Transistors

Definition

An inner spacer is a dielectric spacer formed between vertically stacked channel sheets and adjacent source/drain regions in gate-all-around nanosheet transistor integration.

Application

Inner spacers electrically isolate the gate from source/drain regions and require tightly controlled lateral recess and dielectric fill to manage parasitic capacitance and device geometry.

Related search terms

nanosheet inner spacer; GAA inner spacer

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Related concepts

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