Invention Grant
- Patent Title: Method for interconnecting components of an electronic system by sintering
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Application No.: US17446770Application Date: 2021-09-02
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Publication No.: US11919083B2Publication Date: 2024-03-05
- Inventor: Céline Feautrier , Maxime Bronchy
- Applicant: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES ALTERNATIVES
- Applicant Address: FR Paris
- Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES
- Current Assignee: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES
- Current Assignee Address: FR Paris
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: FR 08957 2020.09.03
- Main IPC: B22F3/02
- IPC: B22F3/02 ; B22F3/15 ; H01L21/477 ; H01L21/48 ; B22F3/24

Abstract:
A method for interconnecting components of an electronic system includes depositing a sintering solution onto a first component to form an interconnection layer, the sintering solution having metal nanoparticles dispersed in a solvent, and a stabilizing agent adsorbed onto the nanoparticles. The nanoparticles have for more than 95.0% of their mass a metal selected from silver, gold, copper and alloys thereof and have a polyhedral shape with an aspect ratio of more than 0.8. The method also includes eliminating, at least partially, solvent from the layer to form an agglomerate in which the stabilizing agent binds nanoparticles together and maintains at least a portion of the nanoparticles at a distance from each other; debinding and sintering the layer by bringing the agglomerate into contact with a destabilizing agent to aggregate and coalesce the nanoparticles and depositing a second component in contact with the layer before or during debinding or sintering.
Public/Granted literature
- US20220062990A1 METHOD FOR INTERCONNECTING COMPONENTS OF AN ELECTRONIC SYSTEM BY SINTERING Public/Granted day:2022-03-03
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