Abstract:
A hermetically sealed glass package (100) and method (200) for manufacturing the hermetically sealed glass package (100) are described herein using an OLED display as an example. Basically, the hermetically sealed OLED display (100) is manufactured by providing (step 202) a first substrate plate (102) and a second substrate plate (107) and depositing (step 208) a frit (106) onto the second substrate plate (107). OLEDs (104) are deposited (step 206) on the first substrate plate (102). An irradiation source (110)(e.g., laser, infrared light) is then used to heat (step 212) the frit (106) which melts and forms a hermetic seal (108) that connects the first substrate plate (102) to the second substrate plate (107) and also protects the OLEDs (104). The frit (106) is glass that was doped with at least one transition metal and possibly a CTE lowering filler such that when the irradiation source (110) heats the frit, it softens and forms a bond. This enables the frit (106) to melt and form the hermetic seal (108) while avoiding thermal damage to the OLEDs (104).
Abstract:
Methods of making a transparent glass-based article including at least two transparent glass-based substrates and a laser-induced bond therebetween. Methods include arranging the two transparent glass-based substrates relative to each other to form a contact area. Methods also include providing a laser beam contiguous the contact area to bond the two transparent glass-based substrates.
Abstract:
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.
Abstract:
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.
Abstract:
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.
Abstract:
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.
Abstract:
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.
Abstract:
A hermetically sealed glass package and method for manufacturing the hermetically sealed glass package are described herein using an OLED display as an example. In one embodiment, the hermetically sealed glass package is manufactured by providing a first substrate plate and a second substrate plate. The second substrate contains at least one transition metal such as iron, copper, vanadium, manganese, cobalt, nickel, chromium, and/or neodymium. A sensitive thin-film device that needs protection is deposited onto the first substrate plate. A laser is then used to heat the doped second substrate plate in a manner that causes a portion of it to swell and form a hermetic seal that connects the first substrate plate to the second substrate plate and also protects the thin film device. The second substrate plate is doped with at least one transition metal such that when the laser interacts with it there is an absorption of light from the laser in the second substrate plate, which leads to the formation of the hermetic seal while avoiding thermal damage to the thin-film device. Another embodiment of the hermetically sealed glass package and a method for manufacturing that hermetically sealed glass package are also described herein.
Abstract:
A method of making an at least one hole in an optically transparent body (10) comprises the following steps: (i) providing an ultrashort pulse laser for producing a laser output with a wavelength , the laser output having a subpicosecond laser pulse duration; (ii) providing a laser output focusing lens (34) for focusing the laser output, the focusing lens (34) having a numerical aperture NA; (iii) providing an optically transparent body (10), the optically transparent body (10) having a transparency at of at least 90%/cm; (iv) providing a liquid (39’) filled container (39) situated proximate to the optically transparent body (10), such that the optically transparent body (10) is in direct contact with the liquid (39’); and (v) directing the laser output through the focusing lens (34) to produce a focused laser output with a subpicosecond laser pulse duration proximate the optically transparent body (10), wherein the focused laser output traces at least one hole track pattern through the transparent glass body while the optically transparent body (10) and said focused laser output move relative to one another in X-Y-Z directions . The at least one hole track pattern is in contact with the liquid and the focused laser output, in conjunction with the liquid (39’), creates at least one hole in the optically transparent body (10).
Abstract translation:在光学透明体(10)中制造至少一个孔的方法包括以下步骤:(i)提供用于产生具有波长的激光输出的超短脉冲激光器,激光输出具有亚皮秒激光脉冲持续时间; (ii)提供用于聚焦激光输出的激光输出聚焦透镜(34),聚焦透镜(34)具有数值孔径NA; (iii)提供光学透明体(10),所述光学透明体(10)具有至少90%/ cm 3的透明度; (iv)提供位于光学透明体(10)附近的液体(39')填充容器(39),使得光学透明体(10)与液体(39')直接接触; 和(v)通过聚焦透镜(34)引导激光输出以产生具有邻近光学透明体(10)的亚皮秒激光脉冲持续时间的聚焦激光输出,其中聚焦的激光输出通过至少一个孔迹图案通过 透明玻璃体,而光学透明体(10)和所述聚焦激光输出在XYZ方向上相对于彼此移动。 所述至少一个孔迹图案与液体接触并且聚焦的激光输出与液体(39')一起在光学透明体(10)中产生至少一个孔。
Abstract:
A hermetically sealed glass package (100) and method (200) for manufacturing the hermetically sealed glass package (100) are described herein using an OLED display as an example. Basically, the hermetically sealed OLED display (100) is manufactured by providing (step 202) a first substrate plate (102) and a second substrate plate (107) and depositing (step 208) a frit (106) onto the second substrate plate (107). OLEDs (104) are deposited (step 206) on the first substrate plate (102). An irradiation source (110)(e.g., laser, infrared light) is then used to heat (step 212) the frit (106) which melts and forms a hermetic seal (108) that connects the first substrate plate (102) to the second substrate plate (107) and also protects the OLEDs (104). The frit (106) is glass that was doped with at least one transition metal and possibly a CTE lowering filler such that when the irradiation source (110) heats the frit, it softens and forms a bond. This enables the frit (106) to melt and form the hermetic seal (108) while avoiding thermal damage to the OLEDs (104).