Electrically Conductive Formulations Filled Nano Size Silver Filler for Ink-Jet Technology

As current studies and analyses imply, the future of modern microelectronics solutions is utterly dependent on nanotechnology within which nano size materials are more and more frequently produced and applied. This results in the unparalleled possibility of creating new, so far impossible to manufacture products as well as application technologies. Consequently, this results in a significant increase in the possibility of miniaturization of elements of electronic systems by reducing the dimensions of its elements themselves as well as increasing the density of their compaction. Polymer composites containing silver particles of single nanometers (several atoms) may be printed with the application of the Ink-Jet method in order to obtain a line or 'points' being electricity conductors or contacts in electronic assembly. The Ink-Jet printing method utilizes the percussive effect of a piezoelectric compressing capillary element within microsecond and thus resulting in sudden 'expenditure' of the dosed composition. During the very dosing process, the dosed portion is affected by acceleration of 10
⁵
g, which may cause separation of elements of various specific weights from the dosed composition. Therefore, the physically best composition has the features of a specific solution in which the filler conducting electricity (silver) has the dimensions insignificantly differing from the dimensions of the binder in which it is 'suspended'. One of the crucial technical problems is the production of silver particles separated from one another and of adequately small and repetitive at defined time dimensions.