Skip to content.

TUD

search  |  internal  |  deutsch
Personal tools
TU Dresden » Faculty of Mechanical Science and Engineering » Institute for Materials Science » Chair of Materials Science and Nanotechnology

» presentations   » 2012.05.09-13




Resistance of Conductive Adhesive Joints on non-noble Surface Finishes

Vitalii Ivanov, Bjoern Boehme, Klaus-Juergen Wolter

35th International Spring Seminar on Electronics Technology (ISSE) 2012

2012.05.09-13; Bad Aussee, Austria

Electrically conductive adhesives (ECAs) have number of advantages comparing to solder joints. They are environmentally friendly and have lower processing temperature that makes them suitable for manufacturing of LCD's or connecting flexible solar cell arrays in modules. However, in flexible solar cells the metal contact is usually made of non-noble metal, and this joint can suffer from decrease of conductivity at the operation environment. In this work the joint behaviour between different metal surfaces (Au, Sn,Mo) and ECAs during different ageing conditions is investigated. The aim of the work is to investigate the degradation of non-noble metal-ECA joints in order to predict the reliability of such an electrical contact. The results of the literature review and ageing experiments are presented. The ageing conditions were 120 C thermal ageing and damp heat test (85 C/85RH). The test samples were manufactured on FR-4-boards with metal stripes and applied ECAs between them. The experiments are focused on the electrical conductivity. The experiments have shown significant increase in joint resistance after 85 C/85RH, while under 120 C ageing a slight decrease was observed.



people| research | teaching | links | internal | home

last modified: 2017.06.22 Do
author: webadmin

contact
Prof. Dr. Gianaurelio Cuniberti
secretariat:
Ms Sylvi Katzarow
phone: +49 (0)351 463-31420
fax: +49 (0)351 463-31422
office@nano.tu-dresden.de
postal address:
Institute for Materials Science
TU Dresden
01062 Dresden, Germany
visitors and courier address:
HAL building
TU Dresden
Hallwachsstr. 3
01069 Dresden, Germany
Max Bergmann Center
TU Dresden
Budapester Str. 27
01069 Dresden, Germany