Method of forming conductive pattern and substrate having conductive pattern manufactured by the same method

Patent metadata

Field	Value
Publication number	US-9578752-B2
Application number	US-70127810-A
Country	US
Kind code	B2
Filing date	Feb 5, 2010
Priority date	Feb 5, 2009
Publication date	Feb 21, 2017
Grant date	Feb 21, 2017

Abstract

The present invention relates to a method for manufacturing a board that includes a conductive pattern, which comprises the steps of 1) discharging a conductive inorganic composition that includes a conductive inorganic metal particle on a substrate; 2) discharging a conductive organic composition that includes a conductive organic metal complex on the conductive inorganic composition; and 3) sintering the conductive inorganic composition and the conductive organic composition, and a board that includes a conductive pattern manufactured by using the same. A board that includes a conductive pattern according to the present invention may have high conductivity even though it is sintered at a lower sintering temperature than a board that includes a conductive pattern formed by using only an organic material or only an inorganic material.

First claim

What is claimed is:

1. A method for manufacturing a board that includes a conductive pattern, the method comprising the steps of:
1) discharging a conductive inorganic composition that includes conductive inorganic metal particles onto a substrate;
2) discharging a conductive organic composition that includes a conductive organic metal complex onto the conductive inorganic composition; and
3) sintering the conductive inorganic composition and the conductive organic composition to produce the conductive pattern,
wherein the conductive pattern comprises the conductive inorganic metal particles and the organic metal complex,
wherein the organic metal complex in the conductive pattern provides a conductive channel between at least a portion of the conductive inorganic metal particles,
wherein an organic material excluding a solvent, a dispersing agent and a surfactant is not discharged during the discharging of the conductive inorganic composition in step 1), and
wherein the conductive inorganic metal particles are not discharged during the discharging of the conductive organic composition in step 2),
wherein the conductive inorganic metal particles have a particle diameter of 100 nm or less, and
wherein the conductive organic metal complex includes at least one organic metal complex selected from the group consisting of Ag neodecanoate, Ag neotetradecanoate, and Ag neohexadecanoate.

2. The method for manufacturing the board as set forth in claim 1 , wherein the substrate is a glass substrate, a transparent polymer substrate or a flexible substrate.

3. The method for manufacturing the board as set forth in claim 1 , wherein the conductive inorganic metal particles include at least one metal selected from the group consisting of Ag, Au, Pt, Ni, Pd, and Cu.

4. The method for manufacturing the board as set forth in claim 1 , wherein the content of the conductive inorganic metal particle is in the range of 10 to 90 wt % on the basis of the total weight of the conductive inorganic composition.

5. The method for manufacturing the board as set forth in claim 1 , wherein the content of the conductive organic metal complex is in the range of 10 to 90 wt % on the basis of the total weight of the conductive organic composition.

6. The method for manufacturing the board as set forth in claim 1 , wherein the discharging of the conductive inorganic composition and the conductive organic composition is carried out by using an inkjet method.

7. The method for manufacturing the board as set forth in claim 1 , wherein the sintering in step 3) is carried out at 250° C. or less for 1 to 120 min.

8. The method for manufacturing the board as set forth in claim 1 , further comprising drying the conductive inorganic composition that is discharged in step 1) before carrying out step 2).

9. The method for manufacturing the board as set forth in claim 8 , wherein the drying is carried out at 100 to 150° C. or less for 10 to 60 min.

10. The method for manufacturing the board as set forth in claim 1 , further comprising drying the conductive organic composition that is discharged in step 2) before carrying out the sintering in step 3).

11. The method for manufacturing the board as set forth in claim 10 , wherein the drying is carried out at 25 to 100° C. or less for 5 to 30 min.

Assignees

• Park Jung-Ho
• Lg Chemical Ltd

Inventors

• Park Jung-Ho

Classifications

• H05K2203/121

  Metallo-organic compounds · CPC title

• H05K2203/1131

  Sintering, i.e. fusing of metal particles to achieve or improve electrical conductivity · CPC title

• H05K3/245 Primary

  Reinforcing conductive patterns made by printing techniques or by other techniques for applying conductive pastes, inks or powders; Reinforcing other conductive patterns by such techniques · CPC title

• H05K3/1283

  After-treatment of the printed patterns, e.g. sintering or curing methods · CPC title