Objects assembly through a sealing bead including intermetallic compounds

摘要

An assembly of two objects integral with each other through at least one linking element provided between both objects, said linking element including at least a first material portion comprising intermetallic compounds of a phase formed with a first brazing metal and a second metal the melting point of which is higher than that of the first brazing metal, said linking element further including at least a second material portion composed of at least a third metal, said second material portion contacting both objects.

主权项

1. An assembly, comprising:
a first object, a second object, at least one linking element between faces of the first object and the second object so that the first and second objects are integral with each other, and a microsystem, wherein one of the first and second objects is a substrate and the other is a cap, the microsystem is integral with the substrate and encapsulated in a cavity formed between the substrate and the cap, the linking element is a sealing bead forming hermetic side walls of the cavity and comprises
at least a first material portion comprising intermetallic compounds of a phase formed with a first brazing metal and a second metal the melting point of which is higher than that of the first brazing metal, andat least a second material portion composed of at least a third metal which is a metal different from the first brazing metal and the second metal, the first material portion forms a non-particulate structure, and the second material portion contacts both the first and second objects.