Product category:
Gaskets, Seals and Screens
News Release from: Chomerics Europe | Subject: Ecoplate
Edited by the Electronicstalk Editorial
Team on 18 November 2002
Coating gives economical and repeatable
shielding
Ecoplate is a new automated conformal coating process for the application of a uniform layer of metallic material onto either plastic or metal electronics housings.
Chomerics has a new automated conformal coating process for the application of a uniform layer of metallic material onto either plastic or metal electronics housings Ecoplate provides a high performance, repeatable, and economical alternative to established painting and plating methods
This article was originally published on Electronicstalk on 12 Jan 2004 at 8.00am (UK)
Related stories
Conformal coating shields for Segway
Chomerics has achieved a significant design win with the specification of its Ecoplate conformal coating process for use in the Segway Human Transporter (HT).
Tape sticks sinks without fasteners
The latest thermally conductive adhesive tape from Chomerics can significantly simplify PCB assembly by eliminating thermal grease and mechanical fasteners.
Ceramic heat spreaders replace heatsinks
Designed for EMI-sensitive applications, the latest low-profile heat spreaders from Chomerics provide a simple and effective method of cooling semiconductors.
Low tooling costs make the process suitable for use in both high and low volume applications.
The material used in the process is Ecoplate 5030, it has a composition of 80% tin and 20% zinc.
Ecoplate 5030 is atomised and robotically sprayed on to the target surface under controlled speed, particle size and temperature conditions.
Application thicknesses of between 12.5 and 37.5um can be achieved.
The controlled nature of the process ensures that there are no runs, edge pulls, corner puddles or voids.
Shielding effectiveness of Ecoplate 5030 exceeds 75dB from 100MHz to 10GHz.
Tests conducted by Chomerics indicate this shielding performance to be significantly better than that of conductive paint and slightly better than Ni/Cu plating.
The Ecoplate process is free from solvents and corrosives, making it ideal for thin walled, plastic injection moulded parts.
It also replaces conversion coating on metallic enclosures.
Using Ecoplate eliminates the need for wastewater and vapour treatments, plus the handling of flammable materials found in traditional plating and painting processes.
A further benefit of Ecoplate is its thermal characteristics.
The thin uniform layer achieves effective heat spreading, thus helping to improve the reliability and life expectancy of circuits by removing hot spots and reducing device temperatures.
Ecoplate can be used at temperatures to +200C.
Typical cost savings of 10-40% can be achieved by using the process in place of painting or coating, depending on the application.
• Chomerics Europe: contact details and other news
• Email this article to a colleague
• Register for the free Electronicstalk email newsletter
• Electronicstalk Home Page
