摘要:
A method for cutting a semiconductor wafer by generating a crack within the wafer, and a system thereof, are provided. The method comprises irradiating a laser beam towards a surface of the wafer and converging the laser beam to form a focal point so that a focal volume defined by the focal point and a boundary of the laser beam within the wafer is formed. Energy encompassed within the focal volume causes the wafer located at the periphery of the focal volume to contract faster than the wafer located within the focal volume, thereby generating a crack within the wafer.
摘要:
A method for separating sheet of brittle material having a thickness equal to or less than about 1 mm is disclosed. Once an initial flaw or crack is produced, a full body crack can be propagated across a dimension of the brittle material with a laser beam that is substantially absorbed proximate the surface of the sheet to produce sub-sheets. In some embodiments, only a single pass of the laser beam over a surface of the sheet is necessary to separate the sheet. In other embodiments a plurality of passes may be used. Sub-sheets can be further processed into electronic devices by depositing thin film materials on the sub-piece.
摘要:
A method for cutting a semiconductor wafer by generating a crack within the wafer, and a system thereof, are provided. The method comprises irradiating a laser beam towards a surface of the wafer and converging the laser beam to form a focal point so that a focal volume defined by the focal point and a boundary of the laser beam within the wafer is formed. Energy encompassed within the focal volume causes the wafer located at the periphery of the focal volume to contract faster than the wafer located within the focal volume, thereby generating a crack within the wafer.
摘要:
A glass plate cutting machine using a laser beam is provided to solve problems, such as uneven glass section and slanting cutting. By using the glass plate cutting machine of the current invention, the glass plate is irradiated with a first carbon dioxide laser beam of 0.05-2 joule/mm2 on a long oval shaped area of 20-200 mm2 according to an expected cutting line thereof, and immediately cooled with water, to generate a scribe line, which is then further irradiated with a second carbon dioxide laser beam of 0.1-0.5 joule/mm′ on the area of 20-200 mm2 thus obtaining a superior glass section.
摘要翻译:提供使用激光束的玻璃板切割机,以解决玻璃板不均匀和倾斜切割等问题。 通过使用本发明的玻璃板切割机,根据其预期的切割线,在20-200mm 2的长椭圆形区域上照射0.05-2焦耳/ mm 2的第一二氧化碳激光束, 立即用水冷却,生成划线,然后在20-200mm 2的面积上进一步用0.1-0.5焦耳/ mm 2的第二二氧化碳激光束照射,从而获得优良的玻璃部分。
摘要:
A method of high speed cutting of non-metallic materials (14), preferably glass and laminated glass, is described. In the inventive method a concentrated microwave radiation (1) with appropriate frequency and power density is chosen so as to accomplish heating of at least one selected area (2) of the body at the required separating propagation path (3) to required temperature in a selected short time while ensuring that this temperature is large enough to create a thermal stress (6) through the thickness of the selected area that results in the separating of the body material. In one embodiment of the invention a method of high speed cutting laminated glass is described wherein concentrated microwave radiation is used for delaminating adhesive film before the step of separating the glass body.
摘要:
According to the present invention, a first laser beam 2 and a second laser beam 3 composed of an ultraviolet laser are irradiated from a side of a second glass member 5b, allowing the first laser beam 2 to pass through the second glass member 5b so as to condense the first laser beam 2 on the first glass member 5a to form a first scribe line 14, condensing the second laser beam 3 on the second glass member 5b to form a second scribe line 15, and applying a break force to the first scribe line 14 and the second scribe line 15 to cut the glass.
摘要:
A scribing apparatus simultaneously performs scribing processes for a TFT substrate and a C/F substrate in the same location, thereby efficiently utilizing equipment space and achieving enhanced productivity. A substrate cutting apparatus is equipped with the scribing apparatus, and a substrate cutting method uses the substrate cutting apparatus. The scribing apparatus includes a stage for attracting a first mother substrate including first and second conjoined substrates, a scribing belt for holding a second mother substrate including conjoined third and fourth substrates, and a head unit for forming cracks in the second substrate of the first mother substrate or in the third substrate of the second mother substrate.
摘要:
The present invention relates to a process for laser scoring of flat glass sheets. The process comprises manipulating a laser beam having a substantially Gaussian intensity profile to produce an elongated heating zone on the glass sheet to be scored, the elongated heating zone having a central portion with a lower temperature than a temperature of an outer portion of the heating zone. An initial crack is made in the glass sheet, the elongated heating zone is traversed across the glass sheet coincident with the initial crack, and the heated glass is thermally shocked by directing a cooled liquid against the heated glass, thus propagating the crack. The scored glass sheet may thereafter be broken by applying bending techniques as are known in the art.
摘要:
The invention relates to a method of breaking a substrate of a brittle material, the method comprising the steps of providing a substrate (1) of a brittle material, heating the substrate with a laser beam (3) to create a heated spot on the substrate, moving the laser beam and the substrate with respect to each other to create a line of heated spots on the substrate (2), cooling the heated spots on the substrate by locally applying a cooling medium (4) behind the heated spots such that a micro-crack is propagated in the line of heated spots, and breaking the substrate along the line of the propagated micro-cracks by applying a mechanical force on the substrate wherein, the cooling medium comprises an aqueous surfactant solution. The surfactants will connect to the broken siloxane bonds inside the surface cracks. Then recombination and healing of the broken siloxane bonds will not occur and the required breaking load will remain constant over time.
摘要:
This invention relates to a scribing apparatus of a substrate that is adaptive for improving productivity as well as preventing the occurrence of substrate badness. A scribing apparatus according to an embodiment of the present invention includes a wheel to scribe a substrate; a refrigerant supplier installed near one side of the wheel to spray a refrigerant to the substrate; and a hot steam supplier installed near the other side of the wheel to spray a hot steam to the substrate.