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:
Apr. 23, 1996
Filed:
May. 24, 1994
Henry M Sanftleben, Carmel, IN (US);
James M Rosson, Kokomo, IN (US);
Ralph D Hermansen, Northridge, CA (US);
Delco Electronics Corporation, Kokomo, IN (US);
Hughes Aircraft Company, Los Angeles, CA (US);
Abstract
Conformal coating materials are provided for forming a protective conformal coating on the surface of an electronic assembly. The conformal coating materials are characterized by being hot melt materials, in that they are each initially a solid or semisolid at approximately room temperature, a liquid at an elevated temperature at which the coating material is applied to the electronic assembly, and solidify upon cooling to a temperature corresponding to a service temperature of the electronic assembly. As such, the coating systems can be rapidly applied through various highly controllable techniques associated with hot melt dispensing equipment. In addition, the coating systems quickly solidify upon cooling to allow handling of the electronic assembly. The conformal coating systems may be nonreactive, indicating that the system can be remelted, or reactive, indicating that a post-application curing process occurs over time at a temperature less than the elevated application temperature.