Anodized aluminum components, their manufacturing methods, methods for manufacturing surface-treated aluminum components, and printed wiring substrates.

Abstract

The anodized aluminum component (1) comprises: a base material (2) made of aluminum or an aluminum alloy, and an anodized film (3) covering the base material (2). The anodized film (3) comprises: a barrier layer (31) disposed on the base material (2), and a porous layer (32) disposed on the barrier layer (31) and having a plurality of fine pores (321). When calculating the elemental concentration on the surface of the anodized film (3) based on the photoelectron spectrum obtained by X-ray photoelectron spectroscopy, the ratio of the concentration of P atoms to the concentration of Al atoms is 0.03 or more and 0.11 or less.

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