Samsung Demonstrates 3D Stacked FETs with Triple Nanosheet Channels at 42nm

OS & Low-Level Tech(semiconductor.samsung.com)view on HackerNews
3D Stacked FETGate-All-Around (GAA)nanosheet channelsepitaxial growthMiddle Dielectric Isolation (MDI)transistor architecturesemiconductor manufacturing.

Author: its_ajseven

Date: 6/19/2026

Article Summary:
This article discusses the demonstration of a 3D Stacked FET with a gate pitch of 42 nm, featuring triple-stacked nanosheet channels, advanced epitaxial growth processes, Middle Dielectric Isolation (MDI), and validated electrical performance.