The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 08, 2012
Filed:
Aug. 31, 2007
John M. Bedinger, Garland, TX (US);
Michael A. Moore, Fort Worth, TX (US);
John M. Bedinger, Garland, TX (US);
Michael A. Moore, Fort Worth, TX (US);
Raytheon Company, Waltham, MA (US);
Abstract
According to one embodiment of the disclosure, an environmental protection coating comprises a circuit assembly having a first protective dielectric layer and a second dielectric layer. The circuit assembly has an outer surface on which a plurality of discrete electrical components are attached. The first protective dielectric layer overlays the circuit assembly. The second dielectric layer overlays the first protective dielectric layer and is made of a dielectric material having modulus of elasticity less than 3.5 Giga-Pascal (GPa), dielectric constant less than 2.7, dielectric loss less than 0.008, breakdown voltage strength in excess of 2 million volts/centimeter (MV/cm), temperature stability to 300° Celsius, defect densities less than 0.5/centimeter, pinhole free in films greater than 50 Angstroms, capable of being deposited conformally over and under 3D structures with thickness uniformity less than or equal to 10%.