Patent application number | Description | Published |
20090130388 | Glass-based laser ridges for adhesive confinement and related methods - A method for manufacturing an optical assembly comprises providing a first substrate having a first surface, providing a second substrate having a second surface facing the first surface, and forming a patterned microbump on at least a select one of the first surface and the second surface. The method further comprises applying an adhesive to the at least select one of the first surface and the second surface in a region proximate the patterned microbump, and attaching the first substrate to the second substrate by placing the first surface and the second surface in close proximity to one another such that the adhesive contacts both the first surface and the second surface, and wherein the adhesive is held within a preselected area by the patterned microbump. | 05-21-2009 |
20100107525 | Vacuum-Insulated Glass Windows With Glass-Bump Spacers - Vacuum-insulated glass (VIG) windows ( | 05-06-2010 |
20100183846 | METHOD FOR LOCAL REVERSIBLE GLASS SWELLING - A method of forming, on the surface of a glass material, a raised feature having a height within a target range, comprising ( | 07-22-2010 |
20100206006 | MICROALIGNMENT USING LASER-SOFTENED GLASS BUMPS - Disclosed is a method for fabricating glass bump standoff structures of precise height, the method comprising providing oversized glass bumps on a glass substrate, providing a heat source to heat the bumps, positioning a substrate to be aligned on the oversized bumps, and reducing the height of the oversized bumps by a combination of manipulations comprising (1) softening the bumps by heating the bumps and (2) applying pressure to the substrate to be aligned. | 08-19-2010 |
20100291353 | METHOD OF SEPARATING STRENGTHENED GLASS - A method of cutting a glass sheet that has been thermally or chemically strengthened along a predetermined line, axis, or direction with high speed and with minimum damage on the cut edges. The strengthened glass sheet may be an aluminoborosilicate glass material having at least one alkali metal oxide modifier, and the ratio | 11-18-2010 |
20110039072 | RAISED FEATURES ON TRANSPARENT SUBSTRATES AND RELATED METHODS - Raised features are formed on a transparent substrate having absorption of less than about 20% within a processing wavelength range. A portion of the substrate is irradiated with a light beam to increase the absorption of the irradiated portion of the substrate. Continued irradiation causes local heating and expansion of the substrate so as to form a raised feature on the substrate surface. | 02-17-2011 |
20110100058 | FORMATION OF GLASS BUMPS WITH INCREASED HEIGHT USING THERMAL ANNEALING - The disclosure teaches methods of forming at least one bump in a glass substrate having a surface and a body portion. The method includes performing a first irradiation of a portion of the glass substrate to form in the glass surface the at least one bump having bump height. The method also includes performing thermal annealing of at least a portion of the glass substrate that includes the first irradiated portion. The method then includes performing a second irradiation of the bump to increase the bump height. | 05-05-2011 |
20120216570 | LOCAL STRENGTHENING OF GLASS BY ION EXCHANGE - This disclosure describes a process for strengthening, by ion-exchange, the edges of an article separated from a large glass sheet after the sheet has been ion-exchanged to strengthen by exposing only the one or a plurality of the edges of the separated article to an ion-exchange medium (for example without limitation, a salt, paste, frit, glass) while the glass surface is maintained at temperatures less than 200° C. | 08-30-2012 |
20120247063 | LIGHT-WEIGHT STRENGTHENED, LOW-EMITTANCE VACUUM INSULATED GLASS (VIG) WINDOWS - Vacuum-insulated glass windows include two or more glass panes, and glass-bump spacers formed in a surface of one of the panes. The glass-bump spacers consist of the glass material from the body portion of the glass pane. At least one of the glass panes comprises chemically-strengthened glass. Methods of forming VIG windows include forming the glass-bump spacers by irradiating a glass pane with a focused beam from a laser. Heating effects in the glass cause the glass to locally expand, thereby forming a glass-bump spacer. In embodiments where the glass-bump spacers are formed in a chemically-strengthened glass pane, the glass-bump spacers may be formed before or after the chemical strengthening. A second glass pane is brought into contact with the glass-bump spacers, and the edges sealed. The resulting sealed interior region is evacuated to a pressure of less than one atmosphere. | 10-04-2012 |
20130129947 | GLASS ARTICLE HAVING HIGH DAMAGE RESISTANCE - A glass article having strengthened surfaces joined by at least one edge. The strengthened surfaces are under compressive stress. The glass article also has an inner region that is under a tensile stress of greater than about 40 MPa. The edge includes at least one fracture line that is parallel to the surfaces. A first portion of the edge is under compression and a second portion is under tension. The edge is formed by irradiating a glass mother sheet with a laser to form a damage line within the central region laser and separating the glass article from the mother sheet. | 05-23-2013 |
20130247615 | METHODS OF FORMING HIGH-DENSITY ARRAYS OF HOLES IN GLASS - A method of fabricating a high-density array of holes in glass is provided, comprising providing a glass piece having a front surface, then irradiating the front surface of the glass piece with a UV laser beam focused to a focal point within +/−100 μm of the front surface of the glass piece most desirably within +/−50 μm of the front surface. The lens focusing the laser has a numerical aperture desirably in the range of from 0.1 to 0.4, more desirably in the range of from 0.1 to 0.15 for glass thickness between 0.3 mm and 0.63 mm, even more desirably in the range of from 0.12 to 0.13, so as to produce open holes extending into the glass piece 100 from the front surface 102 of the glass piece, the holes having an diameter the in range of from 5 to 15 μm, and an aspect ratio of at least 20:1. For thinner glass, in the range of from 0.1-0.3 mm, the numerical aperture is desirably from 0.25 to 0.4, more desirably from 0.25 to 0.3, and the beam is preferably focused to within +/−30 μm of the front surface of the glass. The laser is desirable operated at a repetition rate of about 15 kHz or below. An array of holes thus produced may then be enlarged by etching. The front surface may be polished prior to etching, if desired. | 09-26-2013 |
20130321903 | SHEET GLASS PRODUCT FABRICATION WITH GROWTH-LIMITED GLASS BUMP SPACERS - Methods of forming a sheet glass product comprising a plurality of growth-limited glass bump spacers. According to the methods, a glass pane of the sheet glass product is irradiated with laser radiation to locally heat the glass pane at a plurality of spacer localities and induce growth of a plurality of glass bump spacers in the glass pane. The growth of the plurality of glass bump spacers is limited by utilizing a growth-limiting plate comprising a scattering surface portion. The scattering surface portion of the growth-limiting plate mitigates damage to the growth-limiting plate and may also mitigate damage to the glass pane. Vacuum insulated glass products and systems for forming a growth-limited sheet glass product are also provided. | 12-05-2013 |
20140116091 | HIGH-SPEED MICRO-HOLE FABRICATION IN GLASS - A method for fabricating a high-density array of holes in glass comprises providing a glass sheet having a front surface and irradiating the glass sheet with a laser beam so as to produce open holes extending into the glass sheet from the front surface of the glass sheet. The beam creates thermally induced residual stress within the glass around the holes, and after irradiating, the glass sheet is annealed to eliminate or reduce thermal stress caused by the step of irradiating. The glass sheet is then etched to produce the final hole size. Preferably, the glass sheet is also annealed before the step of irradiating, at sufficiently high temperature for a sufficient time to render the glass sheet dimensionally stable during the step of annealing after irradiating. | 05-01-2014 |
20140147624 | Methods of Fabricating Glass Articles by Laser Damage and Etching - Methods of forming a glass article are disclosed. In one embodiment, a method of forming a glass article includes translating a pulsed laser beam on a glass substrate sheet to form a laser damage region between a first surface and a second surface of the glass substrate sheet. The method further includes applying an etchant solution to the glass substrate sheet to remove a portion of the glass substrate sheet about the laser damage region. The method may further include strengthening the glass substrate sheet by an ion-exchange strengthening process, and coating the glass substrate sheet with an acid-resistant coating. Also disclosed are methods where the laser damage region has an initial geometry that changes to a desired geometry following the reforming of the glass substrate sheet such that the initial geometry of the laser damage region compensates for the bending of the glass substrate sheet. | 05-29-2014 |
20140182774 | LIGHT-WEIGHT STRENGTHENED, LOW-EMITTANCE VACUUM-INSULATED GLASS (VIG) WINDOWS - Vacuum-insulated glass windows include two or more glass panes, and glass-bump spacers formed in a surface of one of the panes. The glass-bump spacers consist of the glass material from the body portion of the glass pane. At least one of the glass panes comprises chemically-strengthened glass. Methods of forming VIG windows include forming the glass-bump spacers by irradiating a glass pane with a focused beam from a laser. Heating effects in the glass cause the glass to locally expand, thereby forming a glass-bump spacer. In embodiments where the glass-bump spacers are formed in a chemically-strengthened glass pane, the glass-bump spacers may be formed before or after the chemical strengthening. A second glass pane is brought into contact with the glass-bump spacers, and the edges sealed. The resulting sealed interior region is evacuated to a pressure of less than one atmosphere. | 07-03-2014 |
20140186557 | LIGHT-WEIGHT STRENGTHENED, LOW-EMITTANCE VACUUM-INSULATED GLASS (VIG) WINDOWS - Vacuum-insulated glass windows include two or more glass panes, and glass-bump spacers formed in a surface of one of the panes. The glass-bump spacers consist of the glass material from the body portion of the glass pane. At least one of the glass panes comprises chemically-strengthened glass. Methods of forming VIG windows include forming the glass-bump spacers by irradiating a glass pane with a focused beam from a laser. Heating effects in the glass cause the glass to locally expand, thereby forming a glass-bump spacer. In embodiments where the glass-bump spacers are formed in a chemically-strengthened glass pane, the glass-bump spacers may be formed before or after the chemical strengthening. A second glass pane is brought into contact with the glass-bump spacers, and the edges sealed. The resulting sealed interior region is evacuated to a pressure of less than one atmosphere. | 07-03-2014 |
20140202209 | VACUUM-INSULATED GLASS WINDOWS WITH GLASS-BUMP SPACERS - Vacuum-insulated glass (VIG) windows ( | 07-24-2014 |
20150027168 | LASER WELDING TRANSPARENT GLASS SHEETS USING LOW MELTING GLASS OR THIN ABSORBING FILMS - A method of sealing a workpiece comprising forming an inorganic film over a surface of a first substrate, arranging a workpiece to be protected between the first substrate and a second substrate wherein the inorganic film is in contact with the second substrate; and sealing the workpiece between the first and second substrates as a function of the composition of impurities in the first or second substrates and as a function of the composition of the inorganic film by locally heating the inorganic film with a predetermined laser radiation wavelength. The inorganic film, the first substrate, or the second substrate can be transmissive at approximately 420 nm to approximately 750 nm. | 01-29-2015 |