ELECTRODE AND METHOD FOR MANUFACTURING THE SAME

• US 20110083874A1
• Filed: 10/09/2009
• Published: 04/14/2011
• Est. Priority Date: 10/09/2009
• Status: Abandoned Application

• Current Assignee: E. I. du Pont de Nemours and Company (Corteva, Inc.)
• Original Assignee: E. I. du Pont de Nemours and Company (Corteva, Inc.)
• Inventors: Kuroki, Masakatsu
• Application Number:
  US12/576,328
• Publication Number:
  US 20110083874A1
• Time in Patent Office: Days
• US Class Current: 174/68.1
• CPC Class Codes: G03F 7/0047 characterised by additives for obtaining a metallic or ceramic pattern, e.g. by firing
• CPC Class Codes: G03F 7/027 Non-macromolecular photopolymerisable compounds having carbon-to-carbon double bonds, e.g. ethylenic compounds G03F7/075 takes precedence
• CPC Class Codes: H01B 1/22 the conductive material comprising metals or alloys
• CPC Class Codes: H01J 2211/225 Material of electrodes
• CPC Class Codes: H01J 2211/40 Layers for protecting or enhancing the electron emission, e.g. MgO layers
• CPC Class Codes: H01J 9/02 Manufacture of electrodes or electrode systems
• CPC Class Codes: H05K 1/092 Dispersed materials, e.g. conductive pastes or inks
• CPC Class Codes: H05K 2203/1126 Firing, i.e. heating a powder or paste above the melting temperature of at least one of its constituents
• CPC Class Codes: H05K 3/282 for inhibiting the corrosion of the circuit, e.g. for preserving the solderability

Abstract

Disclosed is an electrode, including a conductive layer containing a conductive component selected from the group consisting of copper, nickel, iron, cobalt, titanium, lead, aluminum, tin, and alloys comprising one of these metals as the principal ingredient thereof, and an oxidation protection layer containing boron oxide, said oxidation protection layer covering the top surface of the conductive layer, or covering both the top surface and the sides of the conductive layer, or covering all locations where the conductive layer has been formed; the electrode being formed by air firing the conductive layer and the oxidation protection layer simultaneously.

Claims

1. An electrode comprising:

a conductive layer containing a conductive component selected from the group consisting of copper, nickel, iron, cobalt, titanium, lead, aluminum, tin, and alloys comprising one of these metals as the principal ingredient thereof; and

an oxidation protection layer containing boron oxide and covering the top surface of said conductive layer or covering the top and sides of said conductive layer or covering all locations of the conductive layer where-ever the conductive layer has been formed;

said electrode being formed by air firing said conductive layer and said oxidation protection layer simultaneously.

2. The electrode according to claim 1, wherein said oxidation protection layer covers both the top surface and the sides of said conductive layer.

3. The electrode according to claim 1, wherein said oxidation protection layer covers all locations where said conductive layer has been formed.

4. A method for manufacturing an electrode, comprising the steps of:

coating a conductive paste containing a conductive component selected from the group consisting of copper, nickel, iron, cobalt, titanium, lead, aluminum, tin, and alloys comprising one of these metals as the principal ingredient thereof, onto a substrate in a predetermined pattern;

drying said conductive paste;

coating a boron paste containing boron powder on top of said dried conductive paste;

drying said boron paste; and

air firing said conductive paste and said boron paste.

5. The method for manufacturing an electrode according to claim 4, wherein said boron paste is coated in a pattern identical to the coating pattern of said conductive paste.

6. The method for manufacturing an electrode according to claim 4, wherein said boron paste is coated in a wider pattern than the coating pattern of said conductive paste, and part of the coated boron paste covers the sides of said conductive paste.

7. The method for manufacturing an electrode according to claim 4, wherein said boron paste is coated to cover all locations on which said conductive paste has been coated.

8. A method for manufacturing an electrode, comprising the steps of:

coating a photosensitive conductive paste containing a conductive component selected from the group consisting of copper, nickel, iron, cobalt, titanium, lead, aluminum, tin, and alloys comprising one of these metals as the principal ingredient thereof, onto a substrate;

exposing said coated conductive paste in a predetermined pattern;

developing said exposed conductive paste;

coating a boron paste containing boron powder on top of said developed conductive paste;

drying said boron paste; and

air firing said conductive paste and boron paste.

9. The method for manufacturing an electrode according to claim 8, wherein said boron paste is coated in a pattern identical to the coating pattern of said conductive paste.

10. The method for manufacturing an electrode according to claim 8, wherein said boron paste is coated in a wider pattern than the coating pattern of said conductive paste, and part of the coated boron paste covers the sides of said conductive paste.

11. The method for manufacturing an electrode according to claim 8, wherein said boron paste is coated to cover all locations on which said conductive paste has been coated.

12. A method for manufacturing an electrode, comprising the steps of:

coating a conductive paste containing a conductive component selected from the group consisting of copper, nickel, iron, cobalt, titanium, lead, aluminum, tin, and alloys comprising one of these metals as the principal ingredient thereof, onto a substrate;

drying said coated conductive paste;

coating a photosensitive boron paste containing boron powder on top of said dried conductive paste;

exposing said coated photosensitive boron paste in a predetermined pattern;

developing said conductive paste and exposed boron paste; and

air firing said conductive paste and said boron paste.