An electrical device that includes: a metal barrier layer; an anodic porous oxide region on the metal barrier layer; a trench around the anodic porous oxide region reaching the metal barrier layer; a liner at least on a wall of the trench on a side of the anodic porous oxide region forming an electrical isolation barrier and having an opening onto the anodic porous oxide region; a hard mask arranged above the trenches and the liner having an opening onto the anodic porous oxide region. A corresponding manufacturing method is also disclosed.

A method for manufacturing an electrical device that includes: anodizing a portion of an anodizable metal layer so as to obtain an anodic porous oxide region and an anodizable metal region adjoining the anodic porous oxide region, the anodic porous oxide region being thicker than the anodizable metal region; depositing a layer of liner material on the anodic porous oxide region and on the anodizable metal region; depositing a layer of filler material on the layer of liner material to obtain a stacked structure having a top surface; planarizing the stacked structure from a top surface thereof until reaching the layer of the liner material, so as to expose a portion of liner material located above at least a portion of the anodic porous oxide region; and removing the exposed portion of liner material.

A method and apparatus for processing an object (4), for example an aluminium aircraft part, the method comprising: performing a first conversion coating process to dispose a first conversion coating (10) onto at least part of a surface of the object (4); partially masking the first conversion coating (10) disposed on the object (4); performing an etching process to remove, from the object (4), an unmasked portion of the first conversion coating (10) while retaining the masked portion of the first conversion coating (10) on the object (4); and performing a second conversion coating process to dispose a second conversion coating (12) onto a region of the surface of the object (4) from which the unmasked portion of the first conversion coating (10) was removed. A paint layer (14) may then be applied to, e.g., the second conversion coating (12).

A housing of an electronic device is provided. The housing includes a first surface, a second surface, a side surface surrounding at least a portion of a space formed between the first surface and the second surface, a first surface layer formed by applying a first texture and a first color to a first area of at least one of the first surface, the second surface, and the side surface of the housing, and a second surface layer formed by applying a second texture and a second color to a second area within the first area, wherein at least one of the first surface layer and the second surface layer includes an oxide film layer.

Provided are an aluminum conductive member that includes an electrical connection portion excellent in conductivity and rust resistance and an electrical insulation portion excellent in long-term durability, chemical resistance, and the like, and can be manufactured at low cost, and a method of manufacturing the same. Specifically, provided are an aluminum conductive member, including: an aluminum conductive base material formed of an aluminum material including aluminum or an aluminum alloy; an electrical connection portion formed in a region of the aluminum conductive base material, the electrical connection portion having a surface coated with a conductive oxidation preventing film and being used as a terminal; and an electrical insulation portion formed in a region of the aluminum conductive base material other than the region in which the electrical connection portion is formed, the electrical insulation portion being coated with an anodic oxide film, and a method of manufacturing the same.

An enclosure for a portable electronic device includes a titanium substrate having a textured surface that includes peaks separated by valleys, where the textured surface is characterized as having (i) an Sdq (root mean square gradient) that is greater than 0.2 micrometers, and (ii) a gloss value that is greater than 90 gloss units as measured at 60 degrees by a gloss meter.

In a plasma electrolytic oxidation apparatus and a method of plasma electrolytic oxidation using the plasma electrolytic oxidation apparatus, the plasma electrolytic oxidation apparatus includes a chamber and an electrode unit. The chamber is configured to receive an electrolyte. The electrode unit is configured to receive the electrolyte from the chamber and to treat an object with a plasma electrolytic oxidation treatment. The electrode unit includes an electrode, an enclosing part and a cover. The electrode is configured to receive a voltage from outside, and to form a receiving space in which the electrolyte is received between the electrode and the object. The enclosing part is configured to enclose a gap between the electrode and the object. The cover is configured to cover the electrode.

An apparatus and a method are disclosed that form an anodic oxide coating on part of the outer surface of a profile having an irregular cross-sectional shape. A partial anodizing apparatus that is used to partially anodize a profile having an irregular cross-sectional shape includes an electrolytic bath that is divided into two or more partial baths. The profile is held using the two or more partial baths so that part of the profile is situated outside the electrolytic bath to form a sealed electrolysis chamber.

Provided is a masking sheet for chemical solution treatment, the masking sheet comprising a substrate having first and second faces, and a PSA layer placed on the first face side of the substrate. The masking sheet is constituted so that penetration of a chemical solution is visually detectable when inspected from the outer face of the masking sheet.

The present invention relates to a metal such as titanium and niobium with differentially oxidized and/or nitridized layers for a metallic picture print, and method for producing the same. More specifically, this invention relates to a metal surface modified by differential oxidation and/or nitridation for making durable metallic picture prints to limit degradation to a picture print caused by UV radiation and chemical reactions.