An Overview Of BGA Underfill Process And Non Conductive Via Fill Flip chip packaging exposes chips to mechanical stress because of extensive coefficient thermal expansion mismatch between the silicon chips and the substrate. When there is a high thermal load, the mismatch stresses the chips, thus making reliability a concern....
How to use a smt underfill epoxy adhesive in various applications Underfill is a liquid polymer type applied to PCBs after going through a reflow process. After the underfill is placed, it is then allowed to cure, encapsulating the bottom side of a chip covering fragile interconnected pads between the...
Using PCB smt underfill epoxy and bga underfill material for different applications Underfill applications make use of different adhesive compounds to fill up gaps that exist between PCBs and microchip packages. This is very important because different chip packages, like chip scale packages and ball grid arrays, have to be...
