E.i. Dupont De Nemours and Company

Dowa Electronics Materials Co., Ltd.

Other

Solar Paste, LLC

Haixin Yang

Howard David Glicksman

Roberto Irizarry

Michael Stephen Wolfe

Takashi Hinotsu

Dave Hui

Shingo Teragawa

Patricia J Ollivier

Mark R McKeever

Lap-Tak Andrew Cheng

Seigi Suh

Feng Gao

Michael F Barker

John Graeme Pepin

Christopher John Roach

Terry Roland Suess

Lei Zhang

Pedro A Jimenez

Cherng Y Wang

Vincent Wen-Yuan Yeh

Lisa Marie Runge

Angel R Cartagena

Chien Lung Weng

This disclosure relates to a method of manufacturing an electrically conductive thick film comprising steps of: (a) applying a fine silver particle dispersion on a substrate, wherein the fine silver particle dispersion comprises, (i) 60 to 95 wt. % of fine silver particles, wherein particle diameter (D50) of the fine silver particles is 50 to 300 nm, (ii) 4.5 to 39 wt. % of a solvent; and (iii) 0.1 to 3 wt. % of a resin, wherein the glass transition temperature (Tg) of the resin is 70 to 300&#xb0; C., wherein the weight percentages are based on the weight of the fine silver particle dispersion; and (b) heating the applied fine silver particle dispersion at 80 to 1000&#xb0; C.

Fine silver particle dispersion

This disclosure relates to a fine silver particle dispersion comprising: (i) 60 to 95 wt. % of fine silver particles, wherein particle diameter (D50) of the fine silver particles is 50 to 300 nm, (ii) 4.5 to 39 wt. % of a solvent; and (iii) 0.1 to 3 wt. % of a resin, wherein the glass transition temperature (Tg) of the resin is 70 to 300&#xb0; C., wherein the weight percentages are based on the weight of the fine silver particle dispersion.

This disclosure relates to a fine silver particle dispersion including: (1) 65 to 95.4% by weight of fine silver particles which have an average primary particle diameter of 10 to 190 nm and which comprise 25% by number or less of silver particles having a primary particle diameter of 100 nm or larger, (2) 4.5 to 34.5% by weight of a solvent, and (3) 0.1 to 1.0% by weight of ethyl cellulose having a weight average molecular weight of 10,000 to 120,000.

This disclosure relates to a conductive paste comprising a fine silver particle dispersion and a glass frit, wherein the fine silver particle dispersion comprising: (1) 65 to 95.4% by weight of fine silver particles which have average primary particle diameter of 10 to 190 nm and which comprise 25% by number or less of silver particles having primary particle diameter of 100 nm or larger, (2) 4.5 to 34.5% by weight of a solvent, (3) 0.1 to 1.0% by weight of ethyl cellulose having weight average molecular weight of 10,000 to 120,000. Also provided are: a method of manufacturing an electrically conductive thick film comprising steps of: (a) applying said fine silver particle dispersion on a substrate, and (b) heating the applied fine silver particle dispersion at 80 to 1000&#xb0; C.; and an electrical device comprising a conductive thick film made with the foregoing paste.

This invention is directed to polyimide-based polymer thick film compositions and particularly non-fluorinated polyimide-based polymer thick film compositions. These compositions are comprised of certain polyimide polymers and certain solvents. In some embodiments various functional components are added to the composition to provide compositions that can be used to form various elements of an electrical circuit.

Polyimide-based polymer thick film compositions

The process for making silver powder particles with very small size crystallites uses a combination of gum arabic and maleic acid with the reduction of a silver salt with ascorbic acid. Silver thick film paste containing these silver powder particles can be used in electronic applications to form electrodes for semiconductor devices and, in particular, solar cells.

Process for making silver powder particles with very small size crystallites

Embodiments of the invention relate to a silicon semiconductor device, and a conductive thick film composition for use in a solar cell device.

Devices containing silver compositions deposited by micro-deposition direct writing silver conductor lines

This invention provides a method of making a photovoltaic cell. The method uses an etching composition comprising one or more onium salts selected from the group consisting of iodonium salts and sulfonium and an organic medium to etch the anti-reflection coating. Also provided is a photovoltaic cell made by this method.

Etching composition and its use in a method of making a photovoltaic cell

The process for making silver powder particles with small size crystallites uses a combination of gum arabic and maleic acid with the reduction of a silver salt with ascorbic acid. Silver thick film paste containing these silver powder particles can be used in electronic applications to form electrodes for semiconductor devices and, in particular, solar cells.

Process for making silver powder particles with small size crystallites

Silver composition for micro-deposition direct writing silver conductor lines on photovoltaic wafers

Methods using silver compositions for micro-deposition direct writing silver conductor lines on photovoltaic wafers

Described herein are methods of manufacturing an electrode and emitter in a field emission device, and devices formed from the methods. Compositions useful for the manufacture of an electrode and emitter in a field emission device are also described.

Co-processable photoimageable silver and corbon nanotube compositions and method for field emission devices

The present invention provides a method for the deposition of an ink jet printable composition, to a substrate comprising:

Ink jet printable thick film compositions and processes

The invention is directed to a process and more particularly, to utilizing polymer solutions to make thick film compositions. In one embodiment the process is directed to the formation of photoimageable thick film compositions for use in photo-patterning methods to make photoimageable electrodes in flat panel display applications, including plasma display panels (PDP). Polymer solutions are obtained by directly polymerizing desired monomers in a desired solvent to form a desired polymer, rather than by dissolving a pre-made polymer in a desired solvent. Other ingredients are added to the polymer solution to directly form thick film pastes, including photoimageable thick film pastes.

Polymer solutions, aqueous developable thick film compositions, processes of making and electrodes formed thereof

The invention is directed to a photoimageable composition comprising:

Growing community of inventors

Chapel Hill, NC, United States of America

Haixin Yang