Provided is a plated steel material which can be used for an automobile, a household appliance, a building material, and the like and, more specifically, to a zinc alloy plated steel material having excellent surface quality and corrosion resistance, and a method for manufacturing the same.

Provided is a zinc-based plated steel sheet having a post-treated coating filmed thereon including: a steel sheet; a zinc plated layer formed on the steel sheet; and a post-treated coating formed on the plated layer, wherein the atomic ratio (O/M) of oxygen (O) to metals (M) contained in the post-treated coating is greater than 2 and less than 20, and a method for post-treating a zinc-based plated steel sheet. According to this, the zinc-based plated steel sheet having the post-treated coating formed thereon has the effects excellent in lubricity, weldability, adhesiveness, film-removing property and paintability. As the method of post-treating a zinc-based plated steel sheet of the present invention employs a simple coating method irrespective of the kind of plating layer, the process is simple and economical and the process operation cost is low.

An article includes a body, which includes a thermoplastic or thermoset material and a plurality of metallic fibers distributed throughout the thermoplastic or thermoset material and has a first subset of the plurality of metallic fibers extending onto a first surface of the body. The manufactured article includes a metallic coating metallically bonded to the first subset of the plurality of metallic fibers. The metal fibers extending onto the first surface are configured to bond with the metallic coating.

The present invention relates to a covering element for a portable object made of a first material, the first material being a ceramic material having a first color, characterized in that the surface of said covering element is at least partially treated so as to exhibit at least one conversion having a different color from the first color.

A method can include coating a first surface of an additively manufactured article made of a base material with a coating material comprising at least two constituents, wherein a first constituent of the at least two constituents is configured to be at least partially transient liquid phase (TLP) diffused from the coating material into the base material at a first constituent diffusion temperature, and a second constituent of the at least two constituents is configured to not diffuse from the coating material at the first constituent diffusion temperature, heating the additively manufactured article to the first constituent diffusion temperature, TLP diffusing at least a portion of the first constituent from the coating and into the base material, leaving the second constituent of the coating material on the first surface, and forming a second surface that is smoother than the first surface.

A method can include coating a first surface of an additively manufactured article made of a base material with a coating material comprising at least two constituents, wherein a first constituent of the at least two constituents is configured to be at least partially transient liquid phase (TLP) diffused from the coating material into the base material at a first constituent diffusion temperature, and a second constituent of the at least two constituents is configured to not diffuse from the coating material at the first constituent diffusion temperature, heating the additively manufactured article to the first constituent diffusion temperature, TLP diffusing at least a portion of the first constituent from the coating and into the base material, leaving the second constituent of the coating material on the first surface, and forming a second surface that is smoother than the first surface.

A method of fabricating an interposer includes: providing a carrier substrate; forming a unit redistribution layer on the carrier substrate, the unit redistribution layer including a conductive via plug and a conductive redistribution line; and removing the carrier substrate from the unit redistribution layer. The formation of the unit redistribution layer includes: forming a first photosensitive pattern layer including a first via hole pattern; forming a second photosensitive pattern layer including a second via hole pattern and a redistribution pattern on the first photosensitive pattern layer; at least partially filling insides of the first via hole pattern, the second via hole pattern, and the redistribution pattern with a conductive material; and performing planarization to make a top surface of the unit redistribution layer flat. According to the method, no undercut occurs under a conductive structure and there are no bubbles between adjacent conductive structures, thus device reliability is enhanced and pattern accuracy is realized.

A method of fabricating an interposer includes: providing a carrier substrate; forming a unit redistribution layer on the carrier substrate, the unit redistribution layer including a conductive via plug and a conductive redistribution line; and removing the carrier substrate from the unit redistribution layer. The formation of the unit redistribution layer includes: forming a first photosensitive pattern layer including a first via hole pattern; forming a second photosensitive pattern layer including a second via hole pattern and a redistribution pattern on the first photosensitive pattern layer; at least partially filling insides of the first via hole pattern, the second via hole pattern, and the redistribution pattern with a conductive material; and performing planarization to make a top surface of the unit redistribution layer flat. According to the method, no undercut occurs under a conductive structure and there are no bubbles between adjacent conductive structures, thus device reliability is enhanced and pattern accuracy is realized.

As a rust prevention member that has excellent corrosion resistance, while being provided with a coating film that contains Si, a rust prevention member which is provided with a base material, a zinc-based plating layer that is provided on the base material, and a chemical conversion coating film that contains Si and is provided on the zinc-based plating layer is described. This rust prevention member is characterized in that the chemical conversion coating film has an Si-rich region on the surface side, said Si-rich region having an atomic ratio of the Si content to the Zn content of 1 or more, while having a thickness of 100 nm or more.

Provided is a plated steel sheet often used as materials for vehicles, home appliances, construction and the like and, more specifically, to a plated steel sheet having a multilayer structure and a method for manufacturing the same.