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Browne Technology, also known as btech, has invented and patented a process for aligning high-density fibers through the thickness of an uncured epoxy film… up to 20 million fibers per square inch! Using this z-axis fiber orientation technology, they have recently completed development of the world's highest thermally conductive adhesive: ATTA®. Unique highly thermally conductive carbon fibers (1900 W/mK) are used in variable density (15-50% by volume) to create a z-axis bulk thermal conductivity up to 750 W/mK…. twice the thermal conductivity of pure copper.
A polymer-based adhesive formulation and a fabrication process was developed that uses continuous fibers uniformly aligned and dispersed through the thickness of the adhesive. This innovative process significantly increases the adhesive's thermal and electrical conductivity performance at significantly reduced costs. The new formulation also eliminates certain unique Air Force microelectronics assembly and processing requirements, resulting in considerable production cost savings.
The SBIR Phase II program is in its final stages of development and testing for the F/A-22 SPO and some other (several) DoD radar product customers. The F/A-22 Radar IPT is looking at supporting the use of these adhesives as part of a Production Improvement Program (PIP) candidate. The PIP candidate would allow funding to add full robotics to the existing radar circulator and sub-array production lines. Estimates have been made that the new adhesives could save $40M to $45M in materials costs alone to a fighter aircraft system such as the F/A-22 with further unidentified savings to date in manual assembly and rework costs over production lots 3 to 11. The development of this SBIR-sponsored technology has enabled important new design characteristics for other avionics subsystem components not heretofore possible.
Jacob Browne
Browne Technology
8395 Greenwood Dr.
Longmont, CO 80503
Phone: (303) 652-6418
Website: http://www.btechcorp.com/
Email: btechcorp@attbi.com