Glass fusion method

• US 9,181,126 B2
• Filed: 01/06/2012
• Issued: 11/10/2015
• Est. Priority Date: 05/26/2008
• Status: Active Grant

• Current Assignee: Hamamatsu Photonics KK
• Original Assignee: Hamamatsu Photonics KK
• Inventors: Matsumoto, Satoshi, Wakuda, Toshimitsu
• Primary Examiner(s): HERRING, LISA L
• Application Number:
  US13/345,199
• Publication Number:
  US 20120151965A1
• Time in Patent Office: 1,404 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: C03C 27/06 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 Class Codes: C03C 8/24 Fusion seal compositions being frit compositions having non-frit additions, i.e. for use as seals between dissimilar materials, e.g. glass and metal; Glass solders

Abstract

A glass layer fixing method for manufacturing a glass layer fixing member by fixing a glass layer to a first glass member, includes the steps of disposing the glass layer on the first glass member along a region to be fused, the glass layer containing a glass powder and a laser-absorbing material and irradiating the region to be fused therealong with a first laser beam, so as to melt the glass layer, fix the glass layer to the first glass member, and increase a laser absorptance of the glass layer.

Claims

1. A method for manufacturing a glass layer fixing member by fixing a glass layer to a first glass member, the method comprising the steps of:

disposing the glass layer on the first glass member along a region to be fused, the glass layer containing a glass powder and a laser-absorbing material; and

irradiating the region to be fused therealong with a first laser beam, so as to melt the glass layer, fix the glass layer to the first glass member, and increase a laser absorptance of the glass layer,

wherein a laser absorbance rate of the glass layer is increased when the glass powder melts to fill voids causing loss of a particle property;

overlaying a second glass member on the first glass member having the glass layer fixed thereto along the region to be fused such that the glass layer is interposed therebetween; and

irradiating the region to be fused therealong with a second laser beam so as to fuse the first and second glass members together,

wherein disposing the glass layer on the first glass member and irradiating the region to be fused with a first laser beam is implemented before the step of overlaying a second glass member.

2. The method according to claim 1, wherein the glass layer is irradiated with the first laser beam such that the glass layer attains a temperature higher than its melting point but lower than its crystallization temperature.