Process for bonding in an atmosphere of a gas having a negative Joule-Thomson coefficient

摘要

The present invention relates to a process for direct bonding two substrates, comprising at least: (a) bringing the surfaces to be bonded of said substrates in close contact; and (b) propagating a bonding wave between said substrates, characterised in that said substrates are kept, during step (b), in an atmosphere of a gas having a negative Joule-Thomson coefficient at the temperature and pressure of said atmosphere.