Contact Drying of Printed Sinterable-Silver Paste

Drying of stencil-, screen-, or dispense-printed paste is a crucial, yet taken-for-granted, presintering step for sinterable-silver (SS) interconnect processing and ultimately its reliability. If the paste's solvent is not sufficiently removed during drying, then entrapped gas can result, and that leads to the formation of thermal-, strength-, and reliability-limiting defects in the later-sintered...