Photosensitive reducible silver ion-containing compositions

Patent metadata

Field	Value
Publication number	US-10311990-B2
Application number	US-201615231847-A
Country	US
Kind code	B2
Filing date	Aug 9, 2016
Priority date	Aug 9, 2016
Publication date	Jun 4, 2019
Grant date	Jun 4, 2019

Abstract

A photosensitive reducible silver ion-containing composition can be used to provide electrically-conductive silver metal in thin film or patterns on a substrate after irradiation with UV-visible light. The composition comprises: a) a non-hydroxylic-solvent soluble silver complex represented by the following formula (I):

wherein L represents an α-oxy carboxylate; P represents a primary alkylamine; a is 1 or 2; b is 1 or 2; and c is 1, 2, 3, or 4, provided that when a is b, b is 1, and when a is 2, b is 2; b) optionally, a photosensitizer that can either reduce the reducible silver ion or oxidize the α-oxy carboxylate; and c) a solvent medium comprising at least one non-hydroxylic solvent.

First claim

The invention claimed is:

1. A photosensitive reducible silver ion-containing composition comprising:
a) a non-hydroxylic-solvent soluble silver complex comprising a reducible silver ion complexed with an α-oxy carboxylate and a primary alkylamine,
the non-hydroxylic-solvent soluble silver complex being represented by the following formula (I):
(Ag + ) a (L) b (P) c    (I)

wherein L represents the α-oxy carboxylate; P represents the primary alkylamine; a is 1 or 2; b is 1 or 2; and c is 1, 2, 3, or 4, provided that when a is 1, b is 1, and when a is 2, b is 2;
b) a photosensitizer that is either: an electron-accepting photosensitizer that upon absorption of incident electromagnetic radiation, is capable of oxidizing the α-oxy carboxylate; or an electron-donating photosensitizer that has an oxidation potential that is greater than the oxidation potential of the α-oxy carboxylate; and
c) a solvent medium comprising at least one non-hydroxylic solvent and less than 10 weight % of water based on the total weight of all solvents in the solvent medium,
wherein the non-hydroxylic-solvent soluble silver complex is present in an amount of at least 10 weight % and up to and including 90 weight %, based on the total weight of the photosensitive reducible silver ion-containing composition; and the photosensitizer is present in an amount of at least 0.5 weight % and up to and including 4 weight %, based on the total weight of the non-hydroxylic-solvent soluble silver complex.

2. The photosensitive reducible silver ion-containing composition of claim 1 , wherein the non-hydroxylic solvent is selected from the group consisting of acetonitrile, benzonitrile, acetone, methyl ethyl ketone, butyronitrile, propylene carbonate, propionitrile, isovaleronitrile, valeronitrile, and a mixture of two or more of these organic solvents.

3. The photosensitive reducible silver ion-containing composition of claim 1 that meets a silver ion stability test such that when the photosensitive reducible silver ion-containing composition is held for 24 hours at ambient temperature and in yellow safelight, less than 0.1 mol % of its original silver ion content is reduced to silver metal.

4. The photosensitive reducible silver ion-containing composition of claim 1 , wherein L is represented by the following formula (II):

wherein R 1 , R 2 , and R 3 are independently hydrogen or branched or linear alkyl groups.

5. The photosensitive reducible silver ion-containing composition of claim 1 , wherein P is a primary alkylamine having a boiling point of less than or equal to 175° C.

6. The photosensitive reducible silver ion-containing composition of claim 1 , wherein P is a primary alkylamine selected from the group consisting of propylamine, n-butylamine, t-butylamine, isopropylamine, 2,2,2-trifluoroethylamine, 2,2,3,3,3-pentafluoropropylamine, 3,3,3-trifluoropropylamine, 1,2-dimethylpropylamine, t-amyl amine, isopentylamine, 2-amino-3-methylbutane, 3,3-dimethyl-2-butylamine, 2-aminohexane, and sec-butylamine.

Assignees

• Eastman Kodak Co

Inventors

• Shukla Deepak

Classifications

• G03F7/063

  Additives or means to improve the lithographic properties; Processing solutions characterised by such additives; Treatment after development or transfer, e.g. finishing, washing; Correction or deletion fluids · CPC title

• G03F7/06

  Silver salts (G03F7/075 takes precedence) · CPC title

• H01B1/02 Primary

  mainly consisting of metals or alloys · CPC title