Skip to main content
Weiter zur Homepage der Europäischen Kommission (öffnet in neuem Fenster)
Deutsch de
CORDIS - Forschungsergebnisse der EU
CORDIS
Inhalt archiviert am 2024-06-16

Environmentally conscious lead-free solder bump for ultra-fine pitch flip chip interconnect in electronic packaging

Ziel

This research project is a fundamental study of lead-free solders for ultra-fine pitch flip chip interconnects in microelectronic packaging, where immersion solder bumping in combination with electroless Ni-P under bump metallization (UBM) is used. Lead-free solders will replace Sn-37Pb in all electronic packaging in near future because of the environmental and healthy concerns. However, it offers a challenge to apply lead-free solders for flip chip interconnect in electronic packaging, due to the higher re flow temperatures and the higher Sn content associated with the lead-free solders, resulting a faster rate of dissolution and severe interfacial reactions between solder and the thin-film UBM.

Furthermore, this application is also under the pressure of continuously growing demand of higher density, smaller size and higher performance of chip technology. 0 Immersion solder bumping of lead-free solders is a good, flexible approach to meet ultra-fine pitch and volume production requirements. The study focuses on metallurgical interface reactions, dissolution rate of Ni-P into solders, electro-migration, mechanical properties and reliability issues of solder joints and identify failure mechanisms of ultra-fine pitch lead-free solder joints. The study is expected benefits for successful application of lead-free solders for "future realistic" ultra-fine pitch flip chip interconnects.

Wissenschaftliches Gebiet (EuroSciVoc)

Dieses Projekt wurde noch nicht bei EuroSciVoc klassifiziert.
Schlagen Sie die Wissenschaftsbereiche vor, die Ihrer Einschätzung nach besonders relevant sind, und helfen Sie uns, unseren Klassifizierungsdienst zu verbessern.

Schlüsselbegriffe

Thema/Themen

Aufforderung zur Vorschlagseinreichung

FP6-2004-MOBILITY-7
Andere Projekte für diesen Aufruf anzeigen

Finanzierungsplan

IIF - Marie Curie actions-Incoming International Fellowships

Koordinator

FRAUNHOFER INSTITUTE FOR RELIABILITY AND MICROINTEGRATION
EU-Beitrag
Keine Daten
Adresse


Deutschland
Gesamtkosten
Keine Daten