LIFE PREDICTION STRUCTURE

摘要

PROBLEM TO BE SOLVED: To provide a method capable of accurately predicting a life of a solder by mounting a mechanism on a board for predicting that a solder connected portion of a mounted component connected to a circuit board comes to the end of a creep rupture life by an electrical scheme for breaking of a wire before the component connected portion.SOLUTION: Provided is a life prediction structure including a non-horizontal circuit board in a housing, metal singulated pieces 2 being soldered to two lands 11 connected to a breaking-of-wire detection circuit 12 formed on the circuit board with a small gap between the pieces 2.