Fusion bonding process for glass
First Claim
1. A glass fusing method for manufacturing a glass fusing structure by fusing first and second glass members together, the method comprising the steps of:
- disposing a glass layer on the first glass member along a region to be fused, the glass layer being formed by removing an organic solvent and a binder from a paste layer containing a glass powder, a laser-absorbing material, the organic solvent and the binder;
irradiating a part of the glass layer with a first laser beam, so as to melt the part of the glass layer and form a laser-absorbing part in the glass layer;
irradiating the region to be fused therealong with a second laser beam while using the laser-absorbing part, formed in advance by irradiation with the first laser beam, as an irradiation initiation position, so as to melt the glass layer and fix the glass layer to the first glass member;
overlaying the second glass member on the first glass member having the glass layer fixed thereto such that the glass layer is interposed therebetween, and irradiating the region to be fused therealong with a third laser beam, so as to fuse the first and second glass members together; and
the first laser beam is different from the second laser beam and both of the aforementioned laser beams are different from the third laser beam.
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Accused Products
Abstract
A part of a glass layer 103 disposed along a region to be fused R is irradiated with a laser beam L1, so as to form the glass layer 103 with a laser-absorbing part 108a having a high laser absorptance. Then, while using the laser-absorbing part 108a as an irradiation initiation position, the region to be fused R is irradiated therealong with a laser beam L2, so as to melt the glass layer 103 and fix the glass layer 103 onto a glass member 104. Since the irradiation initiation position for the laser beam L2 has already become the laser-absorbing part 108a, a stable region where the melting of the glass layer 103 is stable can be formed immediately from the start point for initiating the irradiation with the second laser beam or nearby. The glass member 104 is fused to a glass member 105 through the glass layer 103 having such a stable region formed throughout the region to be fused R, so as to yield a glass fusing structure 101.
87 Citations
18 Claims
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1. A glass fusing method for manufacturing a glass fusing structure by fusing first and second glass members together, the method comprising the steps of:
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disposing a glass layer on the first glass member along a region to be fused, the glass layer being formed by removing an organic solvent and a binder from a paste layer containing a glass powder, a laser-absorbing material, the organic solvent and the binder; irradiating a part of the glass layer with a first laser beam, so as to melt the part of the glass layer and form a laser-absorbing part in the glass layer; irradiating the region to be fused therealong with a second laser beam while using the laser-absorbing part, formed in advance by irradiation with the first laser beam, as an irradiation initiation position, so as to melt the glass layer and fix the glass layer to the first glass member; overlaying the second glass member on the first glass member having the glass layer fixed thereto such that the glass layer is interposed therebetween, and irradiating the region to be fused therealong with a third laser beam, so as to fuse the first and second glass members together; and the first laser beam is different from the second laser beam and both of the aforementioned laser beams are different from the third laser beam. - View Dependent Claims (2, 3, 4)
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5. A glass fusing method for manufacturing a glass fusing structure by fusing first and second glass members together, the method comprising the steps of:
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disposing a glass layer on the first glass member along a region to be fused that is set on a surface of the first glass member and a predetermined region connected to the region to be fused, the glass layer being formed by removing an organic solvent and a binder from a paste layer containing a glass powder, a laser-absorbing material, the organic solvent and the binder; irradiating the predetermined region therealong from an irradiation initiation position in the predetermined region with a first laser beam and then continuously irradiating the region to be fused therealong with the first laser beam, so as to melt the glass layer and fix the glass layer to the first glass member; overlaying the second glass member on the first glass member having the glass layer fixed thereto such that the glass layer is interposed, and irradiating the region to be fused therealong with a second laser beam, so as to fuse the first and second glass members together; the first laser beam is different from the second laser beam; the region to be fused is a ring-shaped region; and the predetermined region is a region projecting from the ring-shaped region to be fused so as to follow horizontally along the surface of the first glass member, the predetermined region being a region that is different from the ring-shaped region to be fused, the predetermined region projecting as viewed from a direction perpendicular to the surface of the first glass member on which the ring-shaped region to be fused is set. - View Dependent Claims (6, 7, 8, 9)
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10. A glass layer fixing method for fixing a glass layer to a first glass member along a region to be fused in which the first glass member and a second glass member are adapted to be fused together, the method comprising the steps of:
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disposing the glass layer on the first glass member along the region to be fused, the glass layer being formed by removing an organic solvent and a binder from a paste layer containing a glass powder, a laser-absorbing material, the organic solvent and the binder; irradiating a part of the glass layer with a first laser beam, so as to melt the part of the glass layer and form a laser-absorbing part in the glass layer; and irradiating the region to be fused therealong with a second laser beam while using the laser-absorbing part, formed in advance by irradiation with the first laser beam, as an irradiation initiation position, so as to melt the glass layer and fix the glass layer to the first glass member; the first laser beam is different from the second laser beam; and the glass layer disposed on the first glass member is irradiated with the first laser beam and the second laser beam before the second glass member is overlaid on the first glass member such that the glass layer is interposed between the first and second glass members when the second glass member is later overlaid on the first glass member. - View Dependent Claims (11, 12, 13)
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14. A glass layer fixing method for fixing a glass layer to a first glass member along a region to be fused that is set on a surface of the first glass member in which the first glass member and a second glass member are adapted to be fused together, the method comprising the steps of:
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disposing the glass layer on the first glass member along the region to be fused and a predetermined region connected to the region to be fused, the glass layer being formed by removing an organic solvent and a binder from a paste layer containing a glass powder, a laser-absorbing material, the organic solvent and the binder; irradiating the predetermined region therealong from an irradiation initiation position in the predetermined region with a first laser beam and then continuously irradiating the region to be fused therealong with the first laser beam, so as to melt the glass layer and fix the glass layer to the first glass member; the region to be fused is a ring-shaped region; and the predetermined region is a region projecting from the ring-shaped region to be fused so as to follow horizontally along the surface of the first glass member, the predetermined region being a region that is different from the ring-shaped region to be fused, the predetermined region projecting as viewed from a direction perpendicular to the surface of the first glass member on which the ring-shaped region to be fused is set. - View Dependent Claims (15, 16, 17, 18)
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Specification