Etchant and array substrate having copper lines etched by...

Details Etchant and array substrate having copper lines etched by... Etchant and array substrate having copper lines etched by...

2004-07-13

2010-12-14

Vinh, Lan (Department: 1713)

Compositions

Etching or brightening compositions

C252S079200, C216S106000, C438S754000

Reexamination Certificate

active

07850866

ABSTRACT:
An etchant includes hydrogen peroxide (H2O2), and a mixed solution including at least one of an organic acid, an inorganic acid, and a neutral salt.

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Communication from German Patent Office.

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