Patent ID: 8728568
Filing Date: 2014-05-20
Classification: H05K

Abstract:
1. A method for forming an encapsulant and coating an electronic component with the encapsulant, whereby the encapsulant protects electronic components used in automatic meter reading technology from moisture and corrosive liquids, comprising: mixing a wax, a tackifier, a polymer, and a plasticizer to form the encapsulant, wherein the mixing occurs at a temperature ranging from about 90° C. to about 120° C.; adjusting the temperature of the electronic component to a temperature ranging from about 80° C. to about 95° C.; adjusting the temperature of the encapsulant to a temperature ranging from about 80° C. to about 95° C.; and dispensing the encapsulant around the electrical component to form a coating round the electrical component; and allowing the coated electrical component to harden and cool before operating the electronic component at temperatures of less than about 65° C., wherein the encapsulant exhibits a percent weight gain ranging from about 0.001% by, weight to about 0.75% by weight percent over, a period of 200 days when subjected to temperature cycling ranging from −40° C. to 70° C and humidity cycling ranging from 0% to 85% relative humidity.