Low viscosity precursor compositions and methods for the deposition of conductive electronic features

Abstract

A precursor composition for the deposition and formation of an electrical feature such as a conductive feature. The precursor composition advantageously has a low viscosity enabling deposition using direct-write tools. The precursor composition also has a low conversion temperature, enabling the deposition and conversion to an electrical feature on low temperature substrates. A particularly preferred precursor composition includes silver metal for the formation of highly conductive silver features.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] This application is a continuation application of co-pending U.S. patent application Ser. No. 10 / 265,351, filed Oct. 4, 2002, which claims the benefit of U.S. Provisional Application No. 60 / 327,620 filed Oct. 5, 2001. Each of the foregoing referenced patent applications is incorporated by reference herein as if set forth below in its entirety.BACKGROUND OF THE INVENTION [0002] 1. Field of the Invention [0003] The present invention relates to precursor compositions that are useful for the deposition of conductive electronic features. The precursor compositions can advantageously have a low conversion temperature to enable low-temperature treatment of the precursors to form conductive electronic features on a variety of substrates. The precursor compositions can also have a low viscosity to enable the deposition of the compositions using direct-write tools, such as ink-jet devices. [0004] 2. Description of Related Art [0005] The electroni...

AI Technical Summary

Benefits of technology

The present invention relates to precursor compositions and methods for the deposition of conductive electronic features on various substrates. The invention aims to provide low viscosity precursor compositions with low processing temperatures that can be deposited using ink-jet printing or other direct-write tools. The ideal precursor composition should have good electrical and mechanical properties, and should be able to form conductive features with low viscosity. The invention seeks to address the need for low viscosity precursor compositions that can be deposited at low temperatures and processed on organic substrates.

Problems solved by technology

However, this latter family of low viscosity compositions is not as well developed as the high viscosity compositions.

Ink-jet printing of conductors has been explored, but the approaches to date have been inadequate for producing well-defined features with good electrical properties.

However, the formulations have a relatively high viscosity and are not useful for alternative deposition methods such as ink-jet printing.

However, the deposits were chosen for optical properties and were either not conductive or were poorly conductive.

However, the printing of these compositions is not disclosed in detail.

However, formulations for depositing electronic features are not disclosed.

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