Methods for printing solder paste and other viscous materials at high resolution

A method, comprising printing individual dots of a material onto an intermediate substrate by a first printing unit, and transferring the dots of material printed on the intermediate substrate to a final substrate by a second printing unit configured to receive the intermediate substrate having the dots of material printed thereon,

• wherein the first printing unit includes a coating system that creates a uniform layer of the material on a donor substrate, the first printing unit transfers the material as the individual dots from the donor substrate onto the intermediate substrate across a donor substrate-to-intermediate substrate gap between the donor substrate and the intermediate substrate, and the second printing unit transfers the dots of material printed on the intermediate substrate from the intermediate substrate onto the final substrate across an intermediate substrate-to-final substrate gap between the intermediate substrate and the final substrate, the intermediate substrate-to-final substrate gap being wider than the donor substrate-to-intermediate substrate gap, and
• wherein the coating system includes a syringe of the material, the material is driven from the syringe onto the donor substrate, and the coating system transports the donor substrate with the material thereon towards and through a first gap between rollers or knifes to create the uniform layer of the material on the donor substrate, the uniform layer of the material having a thickness that is defined by the first gap.