Manufacturing process and device for preforms intended for brazing electronic, photonic, thermal or mechanical components

A pretreatment device for a primary brazing paste or suspension comprising metallic particles with a granulometry in the order of the micrometer or nanometer, one or several binders and one or several solvents such as to obtain a preform of metallic particles able to be used for the sintering of an electronic, photonic, thermal or mechanical component onto a substrate, wherein said device comprises:

• filtration means able to filter said suspension of silver grains or silver oxalate so as to obtain a filtered suspension,
• desolvation means able to desolvate said brazing paste or said suspension so as to obtain a desolvated brazing paste or suspension,
• compacting means able to compact said desolvated brazing paste or said suspension so as to obtain said preform of metallic particles,
• means to transfer said suspension, said desolvated brazing paste or said suspension and said preform of metallic particles.