COMPOSITION FOR APPLICATION OF METAL COATING, WHICH CONTAINS SUPPRESSING AGENT FOR VOIDLESS FILLING OF SUBMICRON SURFACE ELEMENTS Russian patent published in 2015 - IPC C25D3/02 C25D3/38 C25D7/12 C23C18/31 

Abstract RU 2542219 C2

FIELD: chemistry.

SUBSTANCE: invention relates to application of metal layers of coating and can be used in production of semiconductors. Claimed is composition for application of metal layer, which contains source of metal ions and at least one suppressing agent, which is obtained by reaction of amine compound, containing at least three active functional amino groups, with mixture of ethylene oxide and at least one compound, selected from C3 and C4 alkylene oxides, to obtain random copolymers of ethylene oxide and at least one more of C3 and C4 alkylene oxides, with content of ethylene oxide in copolymer of ethylene oxide and C3-C4 alkylene oxide constituting from 30 to 70%. Also claimed is method of electrolytic application of metal layer on substrate by contact of electrolytic bath for application of metal layer, containing said composition, with substrate, and creation of current density in substrate for period of time, sufficient for application of metal layer on substrate.

EFFECT: inventions make it possible to obtain coating layer providing voidless filling of surface elements of nanometer and micrometer scale.

14 cl, 15 dwg, 1 tbl, 12 ex

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RU 2 542 219 C2

Authors

Reger-Gepfert,Kornelia

Rehter,Roman Benedikt

Ehmnet,Sharlotte

Khaag,Aleksandra

Majer,Diter

Dates

2015-02-20Published

2010-03-31Filed