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Resistive Ribbon Printing With an Artificial Interface Layer

IP.com Disclosure Number: IPCOM000039592D
Original Publication Date: 1987-Jul-01
Included in the Prior Art Database: 2005-Feb-01
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Aviram, A: AUTHOR [+3]

Abstract

In resistive ribbon thermal transfer printing, A1 is used as a base contact for the carbon loaded polymeric resistive ribbon material. The non-linear I-V characteristics due to the native oxide of A1 are important for high quality and efficient printing. The native oxide layer on A1 is somewhat sensitive to moisture and ambient conditions, and the control of the oxide thickness and other properties may be difficult. As an alternative, non-linear I-V characteristics can be obtained on carbon loaded polymers, such as polycarbonate and polyimide without the use of A1 as a base contact. By depositing an insulating layer with different thickness on the surface of polymeric materials and then depositing metals, such as Ni, Au, Cr, Cu, etc., on top of the insulating thin layer, non-linear I-V characteristics are obtained.

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Resistive Ribbon Printing With an Artificial Interface Layer

In resistive ribbon thermal transfer printing, A1 is used as a base contact for the carbon loaded polymeric resistive ribbon material. The non-linear I-V characteristics due to the native oxide of A1 are important for high quality and efficient printing. The native oxide layer on A1 is somewhat sensitive to moisture and ambient conditions, and the control of the oxide thickness and other properties may be difficult. As an alternative, non-linear I-V characteristics can be obtained on carbon loaded polymers, such as polycarbonate and polyimide without the use of A1 as a base contact. By depositing an insulating layer with different thickness on the surface of polymeric materials and then depositing metals, such as Ni, Au, Cr, Cu, etc., on top of the insulating thin layer, non-linear I-V characteristics are obtained. The thin insulating layer can be deposited by plasma polymerization or by other coating methods, such as vapor deposition and solvent casting. As an example, plasma polymerized octadecyltriethoxy silane with different thicknesses has been used as an interface layer on a carbon loaded polycarbonate material with Au as base contact. Different knee voltages were obtained with different thicknesses of the interface layer. As another example, plasma polymerized butyltrimethoxy silane of about 1000 Ao thickness was deposited on a carbon loaded polycarbonate material with Ni as the base contact. Pla...