Investigation on Rheological Characterization of Isotropic Conductive Adhesives

Conductive Adhesives

S ince the advent of through-hole printed wiring boards in the 1950s, surface-mount technology has advanced through chip capacitors and resistors to high-density multilayer hybrids and printed circuit boards. Throughout this 40-year span, solder paste has been the accepted technology for component attach.' The present trend toward fine-pitch resolution ( t0.020") and multilayer constructions of...

Electrically Conductive Adhesives

Electrically conductive adhesives are being used in electronic packaging for several decades. A brief review of the dynamic development of conductive adhesives under the influence of the miniaturization, the adaptation of environmental friendly manufacturing processes is presented. With respect to the importance of isotropically conductive adhesives (ICA), a new contact model to analyze the pri...

Failure Modes in Conductive Adhesives

Development of Conductive Adhesives for Solder Replacement

With the phasing out of lead-bearing solders, electrically conductive adhesives (ECAs) have been identified as an environmentally friendly alternative to tin/lead (Sn/Pb) solders in electronics packaging applications. Compared to Sn/Pb solders, conductive adhesive technology offers numerous advantages. However, this new technology still has reliability limitations. Two critical limitations are ...

Cure kinetics of electrically conductive adhesives

Electrically conductive adhesives (ECA) are an alternative interconnection method for crystalline silicon solar cells, providing low thermomechanical stress, being lead-free and applicable to new contact structures. The ability to control their curing reaction in a stringing or lamination process is essential for enabling cost effective and reliable industrial module production. We set up an au...