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    • 33. 发明申请
    • METHOD FOR ADJUSTING POSITION OF LASER EMITTING DEVICE
    • 用于调整激光发射装置的位置的方法
    • US20090184234A1
    • 2009-07-23
    • US12302334
    • 2007-08-27
    • Takehiro ShindoTsutomu Hiroki
    • Takehiro ShindoTsutomu Hiroki
    • G01J1/44
    • B23K26/046B23K26/042B23K26/705H01L21/681
    • Performed is a process of setting, on a mounting table, an adjustment substrate, which is provided with a slit of a preset width extended toward a center from a peripheral portion of the adjustment substrate; irradiating the laser beam toward a light receiving surface of a light energy measuring device, which is disposed on a front surface side of the adjustment substrate, from a rear surface side of the adjustment substrate through the slit; and measuring a variation in an energy amount of the laser beam irradiated onto the light receiving surface by the light energy measuring device while moving the laser emitting device in the optical axis direction, and adjusting a position of the laser emitting device in the optical axis direction to a desired position based on the variation in the energy amount on the light receiving surface.
    • 执行的是在安装台上设置调整基板的处理,该调整基板设置有从调整基板的周边部向中心延伸的预定宽度的狭缝; 从配置在调整用基板的前表面侧的光能测量装置的受光面朝向通过狭缝的调整基板的背面侧照射激光束; 并且在沿着光轴方向移动激光发射装置的同时测量由光能测量装置照射到光接收表面上的激光束的能量的变化,并且调整激光发射装置在光轴方向上的位置 基于光接收表面上的能量的变化而到达期望位置。
    • 36. 发明申请
    • Wafer dividing method and laser beam processing machine
    • 晶圆分割法和激光束加工机
    • US20080190902A1
    • 2008-08-14
    • US12068334
    • 2008-02-05
    • Masaru Nakamura
    • Masaru Nakamura
    • B23K26/38H01L21/78
    • H01L21/78B23K26/042B23K26/40B23K2101/40B23K2103/50B28D5/0011B28D5/0052
    • A method of dividing a wafer, comprising the steps of forming a deteriorated layer along streets in the inside of the wafer; affixing an adhesive film to the rear surface of the wafer; affixing the adhesive film side of the wafer to a dicing tape mounted on an annular frame; dividing the wafer into individual devices along the streets where the deteriorated layer has been formed by expanding the dicing tape; forming a dividing groove along the outer periphery of each individual device in the adhesive film by applying a laser beam through the spaces between adjacent devices while the dicing tape is expanded by carrying out the first tape expanding step; and dividing the adhesive film along the dividing grooves by further expanding the dicing tape from the state in which the first tape expanding step has been carried out.
    • 一种分割晶片的方法,包括以下步骤:沿晶片内部的街道形成劣化层; 将粘合剂膜粘附到晶片的后表面; 将晶片的粘合膜侧固定到安装在环形框架上的切割带; 通过扩大切割胶带,将晶圆分割成已形成劣化层的街道上的各个装置; 通过施加激光束穿过相邻装置之间的空间,沿着每个单独装置的外周形成分隔槽,同时通过执行第一带扩展步骤来扩大切割带; 并且通过从已经进行第一带扩展步骤的状态进一步扩大切割带,沿着分割槽分割粘合剂膜。
    • 39. 发明授权
    • Method and system for preventing excessive energy build-up in a laser cavity
    • 用于防止激光腔内过多能量积聚的方法和系统
    • US07372878B2
    • 2008-05-13
    • US10931460
    • 2004-08-31
    • Brady NilsenSteve Stone
    • Brady NilsenSteve Stone
    • H01S3/10
    • B23K26/0853B23K26/032B23K26/042B23K26/046B23K26/0622H01S3/0085
    • A method and system decrease the amount of undesired laser radiation reaching a workpiece from a laser having a laser cavity and a Q-switch. The laser operates at any given time in one of at least two modes. In a first mode the laser emits pulses at a PRF (pulse repetition frequency) for selectively irradiating targets on or within a workpiece, and the pulses propagate along a propagation path to the workpiece. In a second mode less or no laser radiation desirably reaches the workpiece. The method is operable during the second mode. The method opens the Q switch more than the Q switch is open in the first mode, thereby limiting the amount of energy that builds up in the laser cavity and decreasing the peak energy of the laser radiation emitted in the second mode.
    • 一种方法和系统减少从具有激光腔和Q开关的激光到达工件的不需要的激光辐射的量。 激光在任何​​给定的时间以至少两种模式之一操作。 在第一模式中,激光器以PRF(脉冲重复频率)发射脉冲,用于选择性地在工件上或在工件上照射靶,并且脉冲沿着传播路径传播到工件。 在第二模式中,较少或根本没有激光辐射到达工件。 该方法在第二模式期间可操作。 该方法比第一模式中的Q开关更多地打开Q开关,从而限制在激光腔中积聚的能量的量并且降低在第二模式中发射的激光辐射的峰值能量。
    • 40. 发明申请
    • LASER MARKING SYSTEM
    • 激光打标系统
    • US20080043220A1
    • 2008-02-21
    • US11850022
    • 2007-09-04
    • George KaplanAvigdor ShachraiOded AnnerLeonid Gurvich
    • George KaplanAvigdor ShachraiOded AnnerLeonid Gurvich
    • B23K26/36B23K26/02G01N21/00
    • B23K26/032B23K26/04B23K26/042B23K26/043B23K26/06B23K26/064B23K26/0643B23K26/0648B23K26/0665B23K26/0861B23K26/361B23K2103/30B23K2103/50B41M5/262B44B3/009B44B7/007B44C1/228G01N21/87G06K1/126
    • A laser energy microinscribing system, comprising a semiconductor excited Q-switched solid state laser energy source; a cut gemstone mounting system, allowing optical access to a mounted workpiece; an optical system for focusing laser energy from the laser energy source onto a cut gemstone; a displaceable stage for moving said gemstone mounting system with respect to said optical system so that said focused laser energy is presented to desired positions on said gemstone, having a control input; an imaging system for viewing the gemstone from a plurality of vantage points; and a rigid frame supporting said laser, said optical system and said stage in fixed relation, to resist differential movements of said laser, said optical system and said stage and increase immunity to vibrational misalignments. The laser energy source is preferably a semiconductor diode excited Q-switched Nd:YLF laser with a harmonic converter having an output of about 530 nm. The system may further comprise an input for receiving marking instructions; a processor for controlling said displaceable stage based on said marking instructions and said imaging system, to selectively generate a marking based on said instructions and a predetermined program; and a storage system for electronically storing information relating to images of a plurality of workpieces. A secure certificate of authenticity of a marked workpiece is also provided.
    • 一种激光能量微分系统,包括半导体激发的Q开关固体激光能量源; 切割宝石安装系统,允许光学访问安装的工件; 用于将来自激光能量源的激光能量聚焦到切割的宝石上的光学系统; 可移动台,用于相对于所述光学系统移动所述宝石安装系统,使得所述聚焦的激光能量呈现在具有控制输入的所述宝石上的期望位置; 用于从多个有利位置观察宝石的成像系统; 以及刚性框架,其支撑所述激光器,所述光学系统和所述平台处于固定关系,以抵抗所述激光器,所述光学系统和所述平台的差动运动,并增加对振动失准的抵抗力。 激光能量源优选是具有输出约530nm的谐波转换器的半导体二极管激励的Q开关Nd:YLF激光器。 系统还可以包括用于接收标记指令的输入; 用于基于所述标记指令和所述成像系统控制所述可移位级的处理器,以基于所述指令和预定程序选择性地生成标记; 以及用于电子地存储与多个工件的图像有关的信息的存储系统。 还提供了标记工件的真实性的安全证书。