METHOD TO RELEASE NANO SHEET AFTER NANO SHEET FIN RECESS
Abstract:
A method including forming a plurality of nanosheet layers on a substrate and forming a plurality of first sacrificial layers on the substrate, wherein the plurality of nanosheet layers and the plurality of first sacrificial layers are arranged in alternating layers, where the plurality of first sacrificial layers is comprised of a first material. Selectively removing the plurality of first sacrificial layers and forming a plurality of second sacrificial layers where the plurality of first sacrificial layers were removed, where the plurality of second sacrificial layers is comprised of a second material, where the first material and the second material are different. Recessing the plurality of second sacrificial layers at an even rate.
Information query
Patent Agency Ranking
0/0