公开(公告)号：US20250113573A1

公开(公告)日：2025-04-03

申请号：US18478691

申请日：2023-09-29

Applicant: Intel Corporation

Inventor： Andrey Vyatskikh ,  Paul B. Fischer ,  Uygar E. Avci ,  Chelsey Dorow ,  Mahmut Sami Kavrik ,  Karthik Krishnaswamy ,  Chia-Ching Lin ,  Jennifer Lux ,  Kirby Maxey ,  Carl Hugo Naylor ,  Kevin P. O'Brien ,  Justin R. Weber

IPC: H01L29/18 ,  H01L21/02 ,  H01L27/092 ,  H01L29/06 ,  H01L29/423 ,  H01L29/66 ,  H01L29/778 ,  H01L29/78

Abstract: A low strain transfer protective layer is formed on a transition metal dichalcogenide (TMD) monolayer to enable the transfer of the TMD monolayer from a growth substrate to a target substrate with little or no strain-induced damage to the TMD monolayer. Transfer of a TMD monolayer from a growth substrate to a target substrate comprises two transfers, a first transfer from the growth substrate to a carrier wafer and a second transfer from the carrier wafer to the target substrate. Transfer of the TMD monolayer from the growth substrate to the carrier wafer comprises mechanically lifting off the TMD monolayer from the growth substrate. The low strain transfer protective layer can limit the amount of strain transferred from the carrier wafer to the TMD monolayer during lift-off. The carrier wafer and protective layer are separated from the TMD monolayer after attachment of the TMD monolayer to the target substrate.