Patent ID: 9470746
Filing Date: 2016-10-18
CPC Classification: G01R

Claim Text:
1. A method for evaluating the effects of environmental air on a processed circuit board, the method comprising: a) providing a test probe comprising a circuit board processed by a method to be evaluated, wherein the test probe comprises a pair of traces and circuitry effective for determining an electrical resistance between said traces, wherein the traces are separated by a test distance; b) measuring the electrical resistance between the two traces of said test probe at a first test probe measurement time prior to exposure of the test probe to environmental air to be tested; c) communicating information including the measured electrical resistance between the two traces of said test probe as measured at said first time to a device that stores data, or analyzes data, or stores and analyzes data; d) confirming that the measured electrical resistance between the two traces of said test probe as measured at said first time is at an acceptable level as defined by a pre-determined acceptance standard; e) exposing the test probe to the environmental air to be tested; f) making one or more subsequent measurements of the electrical resistance between the two traces of said test probe after exposure of the test probe to environmental air; g) communicating information including the one or more subsequent measurements to the device that stores data, or analyzes data, or stores and analyzes data; and h) determining when the one or more subsequent measurements of electrical resistance between the two traces of said test probe changes to an unacceptable level as defined by the pre-determined acceptance standard.