Method of manufacturing a semiconductor device using a wet...

Semiconductor device manufacturing: process – Chemical etching – Combined with the removal of material by nonchemical means

Reexamination Certificate

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C438S687000, C438S627000, C438S629000, C438S643000, C438S653000, C257S762000, C257S751000, C257S774000, C257SE21081, C257SE21576, C257SE21579, C257SE21227, C257SE21583, C257SE21584, C257SE21585, C257SE21586

Reexamination Certificate

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07727891

ABSTRACT:
A method of manufacturing a semiconductor device, including the following processes of forming a structure in which a barrier metal containing at least of Ti and Ta and a copper wiring are exposed on its surface, or a structure in which at least one substance selected from the group consisting of Ti, W, and Cu and Al are exposed on its surface, above a semiconductor substrate, and supplying a hydrogen-dissolved solution dissolving hydrogen gas to the surface of the structure.

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