Method of manufacturing heterogeneous material joined body

Patent metadata

Field	Value
Publication number	US-12037281-B2
Application number	US-201816639481-A
Country	US
Kind code	B2
Filing date	Oct 12, 2018
Priority date	Oct 12, 2017
Publication date	Jul 16, 2024
Grant date	Jul 16, 2024

Abstract

Provided is a method of manufacturing a heterogeneous material joined body, the method comprising irradiating a surface of a glass layer with a first laser to form two or more etched lines on the surface of the glass layer; providing a resin layer on the surface of the glass layer having the two or more etched lines; and irradiating the surface of the glass layer with the resin layer with a second laser to fill the etched lines and the surface of the glass layer with the resin layer and join the resin layer and the glass layer, wherein the glass layer having the two or more etched lines is irradiated with the second laser in a direction from the glass layer to the resin layer with focus on the surface of the glass layer which is in contact with the resin layer.

First claim

The invention claimed is:

1. A method for manufacturing a heterogeneous material-containing joined body, wherein the method comprises:
irradiating a surface of a glass layer with a first laser having a wavelength of 200 to 400 nm to form two or more etched lines on the surface of the glass layer, wherein a pitch of the two or more etched lines is 50 μm or more and 1,200 μm or less;
providing a resin layer on the surface of the glass layer having the two or more etched lines; and
irradiating the surface of the glass layer with the resin layer with a second laser to fill the etched lines and the surface of the glass layer with the resin layer and join the resin layer and the glass layer,
wherein light transmissivity, at a wavelength of 1,064 nm, of the glass layer having the two or more etched lines is 40% or more and 98% or less, and
wherein the glass layer having the two or more etched lines is irradiated with the second laser in a direction from the glass layer to the resin layer with focus on the surface of the glass layer which is in contact with the resin layer.

2. The method of claim 1 , wherein the glass layer includes at least one of borosilicate glass, lead-alkali glass, aluminosilicate glass, fused silica glass, germanium oxide glass, germanium selenide glass, heat strengthened glass, and ion strengthened glass.

3. The method of claim 1 , wherein a thickness of the glass layer is 1.5 mm or more and 10 mm or less.

4. The method of claim 1 , wherein a depth of each of the two or more etched lines from the surface of the glass layer is 10 μm or more and 300 μm or less.

5. The method of claim 1 , wherein the first laser is a pico second pulse laser.

6. The method of claim 1 , wherein a number of times of repeated irradiation of the first laser to one or more of the one or more etched lines is 1 time or more and 50 times or less.

7. The method of claim 1 , wherein an output of the first laser is 10 W or more and 50 W or less.

8. The method of claim 1 , wherein an irradiation speed of the first laser is 50 mm/s or more and 500 mm/s or less.

9. The method of claim 1 , wherein the second laser is a fiber pulse laser.

10. The method of claim 1 , wherein an output of the second laser is 5 W or more and 100 W or less.

11. The method of claim 1 , wherein an irradiation speed of the second laser is 20 mm/s or more and 500 mm/s or less.

12. The method of claim 1 , wherein the glass layer is irradiated with the second laser 1 time or more and 40 times or less.

13. The method of claim 1 , wherein an irradiation interval of the second laser on the surface of the glass layer is 100 μm or more and 2,000 μm or less.

14. The method of claim 1 , wherein the two or more etched lines cross to form a mesh pattern.

15. The method of claim 1 , further comprising, after the two or more etched lines are formed on the surface of the glass layer, forming two or more reinforcement etched lines on the surface of the glass layer by additionally irradiating the surface of the glass layer with the first laser, wherein a pitch of the two or more reinforcement etched lines is 10 μm or more and 100 μm or less.

Assignees

• Lg Chemical Ltd

Inventors

• Son Bu Won
• Lee Jin Soo
• Jung Jin Mi
• Shin Bu Gon

Classifications

• B29C66/30325

  making use of cavities belonging to at least one of the parts to be joined · CPC title

• C03B33/091

  using at least one focussed radiation beam, e.g. laser beam (C03B33/0955 takes precedence) · CPC title

• C03B33/07

  Cutting armoured, {multi-layered, coated} or laminated, glass products · CPC title

• C03C27/06

  Joining glass to glass by processes other than fusing (fusing C03B23/20; units for use as elements for closing wall or like openings and comprising two or more parallel glass panes in spaced relationship, the panes being permanently secured together E06B3/66) · CPC title

• B32B2250/40

  Symmetrical or sandwich layers, e.g. ABA, ABCBA, ABCCBA · CPC title