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US 2021/0276085 A1Published application
Metal sintering preparation and the use thereof for the connecting of components
AssigneeHeraeus Deutschland GmbH & Co. KG
InventorsWolfgang SCHMITT, Thomas KREBS, Michael SCHÄFER, Susanne Klaudia DUCH, Jens NACHREINER
Life of this patent
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Abstract
A metal sintering preparation containing (A) 50 to 90% by weight of at least one metal that is present in the form of particles having a coating that contains at least one organic compound, and (B) 6 to 50% by weight organic solvent. The mathematical product of tamped density and specific surface of the metal particles of component (A) is in the range of 40,000 to 80,000 cm−1.
Claims8
A metal sintering preparation comprising:
- (A) 50 to 90% by weight of silver that is present in the form of particles, wherein the particles comprise a coating containing at least one organic compound, (B) 6 to 50% by weight organic solvent, (C) 0 to 12% by weight of at least one metal precursor, (D) 0 to 10% by weight of at least one sintering aid, and (E) 0 to 15% by weight of one or more further ingredients selected from dispersion agents, surfactants, de-foaming agents, binding agents, polymers and/or viscosity-controlling rheological agents,
- wherein a mathematical product of tamped density and specific surface of the metal particles of component (A) is in a range of 40,000 to 70,000 cm−1 and wherein at least 70% by weight of the particles are present in the form of flakes.
Dependencies are inferred from the claim text.