公开(公告)号：US20240318342A1

公开(公告)日：2024-09-26

申请号：US18578049

申请日：2022-07-25

Applicant: MacDermid Enthone Inc.

Inventor： Jianwen Han ,  Pingping Ye ,  Kyle M Whitten ,  Stephan I. Braye ,  Thomas B. Richardson ,  Elie H. Najjar

IPC: C25D3/38 ,  C25D5/00 ,  C25D7/12 ,  C30B7/12 ,  C30B29/02 ,  C30B29/60

CPC classification number: C25D3/38 ,  C25D5/617 ,  C25D7/12 ,  C30B7/12 ,  C30B29/02 ,  C30B29/605

Abstract: A copper electrolyte comprising a copper salt, a source of halide ions, and a linear or branched polyhydroxyl. The copper electrolyte is used to deposit copper having a high density of nanotwinned columnar copper grains on a substrate. The linear or branched polyhydroxy] may comprise a reaction product between 2,3-epoxy-1-propanol and an amine compound. A leveler comprising a polymeric quaternary nitrogen species and/or an accelerator comprising an organic sulfur compound may also be added to the copper electrolyte so long as the nanotwinned columnar copper grains are maintained.