# US 8,541,093 B2 · Method for high resolution ink-jet print using pre-patterned substrate and conductive substrate manufactured using the same

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- Number: US 8,541,093 B2
- Document ID: US8541093B2
- Status: Granted
- Kind: B2
- Application number: 13/354,159
- Filed: 2012-01-19
- Published: 2012-07-19
- Granted: 2013-09-24
- Earliest claimed: 2006-12-05
- Assignees: LG Chem, Ltd.
- Applicants: Tae-Su Kim; Jae-Jin Kim; Bu-Gon Shin; Duk-Sik Ha; Jung-Ho Park
- Inventors: Tae-Su Kim; Jae-Jin Kim; Bu-Gon Shin; Duk-Sik Ha; Jung-Ho Park
- Web page: https://patentgrep.com/patent/US8541093B2

## CPC

- H05K 3/125: {by ink-jet printing}
- H05K 3/1208: {Pretreatment of the circuit board, e.g. modifying wetting properties; Patterning by using affinity patterns (providing shape patterns H05K3/1258; adhesion treatments H05K3/38)}
- H05K 3/1258: {by using a substrate provided with a shape pattern, e.g. grooves, banks, resist pattern}
- H05K 3/381: {by special treatment of the substrate}
- H05K 3/107: {by filling grooves in the support with conductive material (H05K3/045, H05K3/101, H05K3/1258 and H05K3/465 take precedence)}
- H05K 2201/09036: Recesses or grooves in insulating substrate
- H05K 2201/09045: Locally raised area or protrusion of insulating substrate
- H05K 2201/2072: Anchoring, i.e. one structure gripping into another
- H05K 2203/013: Inkjet printing, e.g. for printing insulating material or resist
- Y10T 428/24355: Continuous and nonuniform or irregular surface on layer or component [e.g., roofing, etc.]
- Y10T 428/24521: with component conforming to contour of nonplanar surface
- Y10T 428/24537: Parallel ribs and/or grooves
- Y10T 428/24545: Containing metal or metal compound
- Y10T 428/2457: Parallel ribs and/or grooves
- Y10T 428/24612: Composite web or sheet
- Y10T 428/2462: with partial filling of valleys on outer surface
- Y10T 428/24669: Aligned or parallel nonplanarities
- Y10T 428/24694: Parallel corrugations
- Y10T 428/24802: Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION

## Abstract

A method for high resolution ink-jet print using a pre-patterned substrate employs an ink-jet printing device including an ink-jet head for discharging conductive ink droplets and a driving stage for supporting a substrate to which the conductive ink droplets are hit, to draw a fine line width pattern on the substrate. The method includes (A) forming a stripe pattern with repeated stripes on a substrate surface on which a fine line width pattern will be formed, thereby preparing a pre-patterned substrate; (B) loading the substrate to the ink-jet printing device; and (C) injecting conductive ink droplets to a substrate region where the stripe pattern is formed. An equivalent interval (d) of the stripe pattern and a fine line width (D) of the drawn fine line width pattern satisfy a relation of d<<D, and the hit ink droplets are flowed in an anisotropic form within the region.

## Claims

### Claim 1

A conductive substrate on which a fine line width pattern is drawn, the conductive substrate comprising:
a substrate having a stripe pattern with repeated stripes; and
conductive ink droplets flowed in an anisotropic form within a region where the stripe pattern is formed so as to form a fine line width pattern,
wherein an equivalent interval (d) of the stripe pattern and a fine width (D) of the fine line width pattern satisfy a relation of d<<D.

### Claim 2 (depends on 1)

The conductive substrate according to claim 1, wherein the stripe pattern is formed using a lithography, imprinting or roll printing process.

### Claim 3 (depends on 2)

The conductive substrate according to claim 2, wherein the lithography process is a laser interference lithography process.

### Claim 4 (depends on 1)

The conductive substrate according to claim 1, wherein the stripe pattern has a positive or negative type.

### Claim 5 (depends on 1)

The conductive substrate according to claim 1, wherein the stripe pattern has a prominent and depressed shape having valleys and ridges.

### Claim 6 (depends on 5)

The conductive substrate according to claim 5, wherein the conductive ink droplets are flowed in an anisotropic form along the valleys, and the conductive ink droplets are not dispersed over a border that defines the fine width (D) of the line width pattern.

### Claim 7 (depends on 1)

The conductive substrate according to claim 1, wherein the fine line width pattern is a color filter pattern or an electrode wiring pattern.