公开(公告)号：US20170057017A1

公开(公告)日：2017-03-02

申请号：US15348891

申请日：2016-11-10

申请人： Coherent, Inc.

发明人： David M. GAUDIOSI

IPC分类号： B23K26/38 ,  B23K26/0622 ,  C03B33/04 ,  B23K26/00 ,  C03B33/02 ,  B23K26/402 ,  B23K26/06

CPC分类号： B23K26/38 ,  B23K26/009 ,  B23K26/0624 ,  B23K26/0648 ,  B23K26/40 ,  B23K26/402 ,  B23K2103/50 ,  B23K2103/54 ,  B29C59/16 ,  C03B33/0222 ,  C03B33/04

摘要： The method of and device for cutting brittle materials with tailored edge shape and roughness are disclosed. The methods can include directing one or more tools to a portion of brittle material causing separation of the material into two or more portions, where the as-cut edge has a predetermined and controllable geometric shape and/or surface morphology. The one or more tools can comprise energy (e.g., a femtosecond laser beam or acoustic beam) delivered to the material without making a physical contact.

摘要翻译： 公开了用于切割具有定制的边缘形状和粗糙度的脆性材料的方法和装置。 这些方法可以包括将一个或多个工具引导到脆性材料的一部分，导致将材料分离成两个或多个部分，其中切割边缘具有预定和可控的几何形状和/或表面形态。 一个或多个工具可以包括传递到材料而不进行物理接触的能量（例如，飞秒激光束或声束）。

公开(公告)号：US20180133837A1

公开(公告)日：2018-05-17

申请号：US15352385

申请日：2016-11-15

申请人： Coherent, Inc.

发明人： Michael R. GREENBERG ,  David M. GAUDIOSI ,  Jochen DEILE

IPC分类号： B23K26/06 ,  G02B27/09 ,  G02B27/30 ,  C03B33/02 ,  B23K26/0622 ,  B23K26/08 ,  B23K26/402

摘要： An apparatus for cutting brittle material comprises an aspheric focusing lens, an aperture, and a laser-source generating a beam of pulsed laser-radiation. The aspheric lens and the aperture form the beam of pulsed laser-radiation into an elongated focus having a uniform intensity distribution along the optical axis of the aspheric focusing lens. The elongated focus extends through the full thickness of a workpiece made of a brittle material. The workpiece is cut by tracing the optical axis along a cutting line. Each pulse or burst of pulsed laser-radiation creates an extended defect through the full thickness of the workpiece.

公开(公告)号：US20200254564A1

公开(公告)日：2020-08-13

申请号：US16860300

申请日：2020-04-28

申请人： Coherent, Inc.

发明人： Michael R. GREENBERG ,  David M. GAUDIOSI ,  Jochen DEILE

IPC分类号： B23K26/06 ,  B23K26/066 ,  B23K26/53 ,  B23K26/00 ,  B23K26/073 ,  G02B27/30 ,  G02B27/09 ,  C03B33/02 ,  B23K26/402 ,  B23K26/08 ,  B23K26/0622

摘要： An apparatus for cutting brittle material comprises an aspheric focusing lens, an aperture, and a laser-source generating a beam of pulsed laser-radiation. The aspheric lens and the aperture form the beam of pulsed laser-radiation into an elongated focus having a uniform intensity distribution along the optical axis of the aspheric focusing lens. The elongated focus extends through the full thickness of a workpiece made of a brittle material. The workpiece is cut by tracing the optical axis along a cutting line. Each pulse or burst of pulsed laser-radiation creates an extended defect through the full thickness of the workpiece.

公开(公告)号：US20180161918A1

公开(公告)日：2018-06-14

申请号：US15889791

申请日：2018-02-06

申请人： Coherent, Inc.

发明人： Ramanujapuram A. SRINIVAS ,  David M. GAUDIOSI ,  Timothy BOOTH ,  Michael SHIRK ,  Eric JUBAN ,  Michael MIELKE

IPC分类号： B23K26/00 ,  C03B33/04 ,  C03B33/02

CPC分类号： B23K26/354 ,  C03B33/0222 ,  C03B33/04

摘要： Methods of and devices for forming edge chamfers and through holes and slots on a material that is machined using a laser, such as an ultrafast laser. The shaped material has predetermined and highly controllable geometric shape and/or surface morphology. Further, a method of and a device for preventing re-deposition of the particles on a material that is machined using a laser, such as an ultrafast laser. A fluid is used to wash off the particles generated during the laser machining process. The fluid can be in a non-neutral condition, with one or more chemical salts added, or a condition allowing the coagulation of the particles in the fluid, such that the particles can be precipitated to avoid the reattachment to the machined substrate.