Print processing for patterned conductor, semiconductor and dielectric materials

摘要

Embodiments relate to printing features from an ink containing a material precursor. In some embodiments, the material includes an electrically active material, such as a semiconductor, a metal, or a combination thereof. In another embodiment, the material includes a dielectric. The embodiments provide improved printing process conditions that allow for more precise control of the shape, profile and dimensions of a printed line or other feature. The composition(s) and/or method(s) improve control of pinning by increasing the viscosity and mass loading of components in the ink. An exemplary method thus includes printing an ink comprising a material precursor and a solvent in a pattern on the substrate; precipitating the precursor in the pattern to form a pinning line; substantially evaporating the solvent to form a feature of the material precursor defined by the pinning line; and converting the material precursor to the patterned material.

主权项

1. A composition, comprising:
a) one or more compounds selected from the group consisting of (poly)silanes, (poly)germanes, and (poly)germasilanes in an amount of from 1 to 40% by weight, wherein at least 75 mol % of said (poly)silanes, (poly)germanes, and (poly)germasilanes consist essentially of species having (i) from 15 to about 1,000,000 silicon and/or germanium atoms and (ii) hydrogen, and said (poly)silanes, (poly)germanes, and (poly)germasilanes are prepared by catalytic polymerization and subsequent removal of catalyst from said (poly)silanes, (poly)germanes, and (poly)germasilanes; and b) a solvent in which the one or more compounds is soluble, wherein the composition has a viscosity of from 2 to 100 cP.