Patent ID: 9214617
Filing Date: 2015-12-15
Classification: H01L,H05K

Abstract:
1. An electronic component module, comprising: a circuit board including a silicon nitride substrate having a first principal surface and a second principal surface opposite to the first principal surface, a first metal plate bonded to the first principal surface of the silicon nitride substrate as a circuit, and a second metal plate bonded to the second principal surface of the silicon nitride substrate as a heatsink; and an electronic component bonded to the first metal plate via a first brazing material layer, wherein the electronic component is a thermoelectric element of which an operation environmental temperature is 300° C. or more and 500° C. or less, wherein the first brazing material layer is formed of a brazing material having a melting point in a range of 575° C. to 730° C., and the melting point is higher than the operation environmental temperature of the thermoelectric element, and wherein a ratio of a thickness of the first metal plate to a thickness of the second metal plate is 50% or more and 200% or less.