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Selectively Grown Anti-Microbial Reservoirs for Nanotribologic Applications

IP.com Disclosure Number: IPCOM000245807D
Publication Date: 2016-Apr-11
Document File: 4 page(s) / 162K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a structure and method of selectively depositing nanoscale reservoirs of anti-microbial material, specifically cobalt and cobalt compounds, on publically accessible and shared electronics to control the material removed by and dose delivered to users of the systems.

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Title

Selectively Grown Anti-Microbial Reservoirs for Nanotribologic Applications

Abstract

Disclosed is a structure and method of selectively depositing nanoscale reservoirs of anti-microbial material, specifically cobalt and cobalt compounds, on publically accessible and shared electronics to control the material removed by and dose delivered to users of the systems.

Problem

In order to prevent the spread of infection, many types of publically accessible electronics equipment (e.g., ticketing kiosks, interactive displays, automated teller machines (ATMs), etc.) use anti-microbial materials on touchpads, keyboards, or other surfaces touched by hundreds of users. Over time and through repeated touch, the anti-microbial material becomes depleted, which leaves the public at risk for the spread of infection.

A method is needed to minimize the gross depletion of anti-microbial material on electronics equipment with significant public usage. The initiative is to deliver low, controlled doses of anti-microbial material to users when the material is in contact with the skin. The solution needs to make use of anti-microbial coatings without degrading the performance of electronics (e.g., touch screens) and without negatively impacting user experience in public locations and healthcare settings.

Solution/Novel Contribution

The novel contribution is a structure and method of selectively depositing nanoscale reservoirs of anti-microbial material on electronics for use in public areas, controlling the material removed by and dose delivered to users of the systems.

A dielectric hard layer on top of circuitry (e.g. glass touch screen) is arbitrarily patterned based on design and desired dose, selectively exposing conducting material underneath (e.g., copper (Cu)). Nanoscale reservoirs are formed by selective metal deposition (e.g., Cobalt (Co)) within opened areas. The implementation process performs an oxidation step to convert the metal in the reservoir and activate the anti- microbial properties of the material within the reservoirs

This solution differs from prior art in that a selective Chemical Vapor Deposition (CVD) Co process is used fill the recesses of a patterne...