MicroCoating Technologies Open Atmosphere Thin Film Technology Simplifying the Deposition of Polymer Coatings

February 9, 2001 – Atlanta, GA – MicroCoating Technologies (MCT) Polymer R&D Unit has achieved promising results with its polymer and polymer composite coatings through the use of its open atmosphere, flame based Combustion Chemical Vapor Deposition (CCVD) Technology. MCT is developing these for many next generation electronics-related applications, ranging from low-k dielectrics, thermal management for power electronics and organic LEDs.
MCT has ongoing research efforts to develop thermal management coatings for power electronic circuits with support from the Office of Naval Research. For this application, MCT has successfully deposited 30 60 micron thick, polymer composite coatings on aluminum-silicon carbide substrates. These low cost, highly adherent composite coatings exhibit thermal conductivity as high as 112 W/m-K and high dielectric break down voltage above 2000 V DC. These coatings enable the manufacture of power devices and control circuits that are smaller and less expensive. These results are superior to more expensive state-of-the-art materials, such as Aluminum Nitride which has both high thermal conductivity and electrical insulation performance.

This novel CCVD based deposition process facilitates polymer and polymer composite coatings to be deposited at a faster rate (~ 10 micron/min) and is more versatile than conventional techniques, such as thermal spraying. MCTs process can deposit polymer composite films at thickness ranging from ~ 0.1 microns to 80 microns. Additionally, the CCVD polymer deposition process is achieving comparable performance with a simplified, less expensive coating technique. For example, conventional technologies such as solution spinning for low-k dielectrics require three steps coating, curing and planarization, while the CCVD technology reduces the same processing to one step. MCT is developing coatings that provide low-k dielectric coatings for interlayer microelectronic circuits. These coatings achieve comparable dielectric performance with a simplified coating technique.

MicroCoating Technologies, Inc.

MCT was founded in 1994 by Dr. Andrew Hunt in Atlanta, Georgia, on the strength of CCVD, an open atmosphere thin film process (US Patent No. 5,652,021). MCT has an exclusive worldwide license to the technology from the Georgia Tech Research Corporation. CCVD is a new open-atmosphere, flame-based technique for depositing high-quality thin films of advanced materials. This revolutionary process eliminates the expensive vacuums required for other thin film deposition processes. Today the company consists of over 115 employees and has had annual revenue growth in excess of 50% for the past five years.