公开(公告)号：US20050282407A1

公开(公告)日：2005-12-22

申请号：US11051500

申请日：2005-02-04

申请人： Kelly Bruland ,  Brian Baird ,  Ho Lo ,  Stephen Swaringen ,  Frank Evans

发明人： Kelly Bruland ,  Brian Baird ,  Ho Lo ,  Stephen Swaringen ,  Frank Evans

IPC分类号： B23K26/067 ,  H01L21/26 ,  H01L21/768

CPC分类号： B23K26/067 ,  H01L21/76894

摘要： Methods and systems selectively irradiate structures on or within a semiconductor substrate using a plurality of laser beams. The structures are arranged in a row extending in a generally lengthwise direction. The method generates a first laser beam that propagates along a first laser beam axis that intersects the semiconductor substrate and a second laser beam that propagates along a second laser beam axis that intersects the semiconductor substrate. The method simultaneously directs the first and second laser beams onto distinct first and second structures in the row. The method moves the first and second laser beam axes relative to the semiconductor substrate substantially in unison in a direction substantially parallel to the lengthwise direction of the row, so as to selectively irradiate structures in the row with one or more of the first and second laser beams simultaneously.

摘要翻译： 方法和系统使用多个激光束选择性地照射半导体衬底上或内部的结构。 这些结构被布置成在大体上沿长度方向延伸的一排。 该方法产生沿着与半导体衬底相交的第一激光束轴传播的第一激光束和沿着与半导体衬底相交的第二激光束轴传播的第二激光束。 该方法同时将第一和第二激光束引导到行中不同的第一和第二结构。 该方法使第一激光束和第二激光束相对于半导体衬底在基本上平行于该行的长度方向的方向基本上一致地移动，以便用一个或多个第一和第二激光器选择性地照射该行中的结构 梁同时进行。

公开(公告)号：US20050281101A1

公开(公告)日：2005-12-22

申请号：US11051265

申请日：2005-02-04

申请人： Kelly Bruland ,  Brian Baird ,  Ho Lo ,  Stephen Swaringen

发明人： Kelly Bruland ,  Brian Baird ,  Ho Lo ,  Stephen Swaringen

IPC分类号： G11C17/14 ,  G11C29/00 ,  H01L23/525

CPC分类号： H01L23/5258 ,  B23K26/0613 ,  B23K26/0622 ,  B23K26/0624 ,  B23K26/082 ,  G11C17/14 ,  G11C17/143 ,  H01L2924/0002 ,  H01L2924/00

摘要： Methods and systems selectively irradiate electrically conductive structures on or within a semiconductor substrate using multiple laser beams. The structures are arranged in a plurality of substantially parallel rows extending in a generally lengthwise direction. One method propagates a first laser beam along a first propagation path having a first axis incident at a first location on or within the semiconductor substrate at a given time. The first location is either on a structure in a first row of structures or between two adjacent structures in the first row. The method also propagates a second laser beam along a second propagation path having a second axis incident at a second location on or within the semiconductor substrate at the given time. The second location is either on a structure in a second row of structures or between two adjacent structures in the second row. The second row is distinct from the first row, and the second location is offset from the first location by some amount in the lengthwise direction of the rows. The method moves the first and second laser beam axes substantially in unison in the lengthwise direction of the rows relative to the semiconductor substrate, so as to selectively irradiate structures in the first and second rows with the first and second laser beams respectively.

摘要翻译： 方法和系统使用多个激光束选择性地照射半导体衬底上或内部的导电结构。 这些结构被布置成沿大致长度方向延伸的多个基本上平行的行。 一种方法在给定时间沿着第一传播路径传播第一激光束，该第一传播路径具有入射在半导体衬底上或半导体衬底上的第一位置的第一轴。 第一个位置是在第一行结构中的结构上，或者在第一行的两个相邻结构之间。 该方法还在给定时间沿第二传播路径传播第二激光束，该第二传播路径具有入射在半导体衬底上或第二位置的第二轴。 第二位置在第二行结构中的结构上，或者位于第二行中的两个相邻结构之间。 第二行与第一行不同，第二位置在行的长度方向上偏离第一位置一定量。 该方法使第一和第二激光束轴相对于半导体衬底在行的长度方向基本一致地移动，以便分别用第一和第二激光束选择性地照射第一和第二行中的结构。

公开(公告)号：US20050279736A1

公开(公告)日：2005-12-22

申请号：US11051958

申请日：2005-02-04

申请人： Kelly Bruland ,  Brian Baird ,  Ho Lo ,  Stephen Swaringen ,  Frank Evans

发明人： Kelly Bruland ,  Brian Baird ,  Ho Lo ,  Stephen Swaringen ,  Frank Evans

IPC分类号： B23K26/00 ,  B23K26/06 ,  B23K26/067 ,  B23K26/08 ,  B23K26/10 ,  B23K26/38 ,  B23K26/40 ,  H01L21/768 ,  H01L23/525

CPC分类号： H01L23/5258 ,  B23K26/0613 ,  B23K26/0624 ,  B23K26/067 ,  B23K26/10 ,  B23K2101/40 ,  H01L21/76894 ,  H01L2924/0002 ,  H01L2924/00

摘要： Methods and systems selectively irradiate structures on or within a semiconductor substrate using a plurality of laser beams. The structures are arranged in a row extending in a generally lengthwise direction. The method generates a first laser beam that propagates along a first laser beam axis that intersects the semiconductor substrate and a second laser beam that propagates along a second laser beam axis that intersects the semiconductor substrate. The method directs the first and second laser beams onto distinct first and second structures in the row. The second spot is offset from the first spot by some amount in a direction perpendicular to the lengthwise direction of the row. The method moves the first and second laser beam axes relative to the semiconductor substrate along the row substantially in unison in a direction substantially parallel to the lengthwise direction of the row.

摘要翻译： 方法和系统使用多个激光束选择性地照射半导体衬底上或内部的结构。 这些结构被布置成在大体上沿长度方向延伸的一排。 该方法产生沿着与半导体衬底相交的第一激光束轴传播的第一激光束和沿着与半导体衬底相交的第二激光束轴传播的第二激光束。 该方法将第一和第二激光束引导到行中不同的第一和第二结构。 第二点在与行长度方向垂直的方向上偏离第一点一定量。 该方法使第一激光束和第二激光束相对于半导体衬底在基本上平行于该行的长度方向的方向上大致一齐地沿着行移动。

公开(公告)号：US20050279739A1

公开(公告)日：2005-12-22

申请号：US11052000

申请日：2005-02-04

申请人： Kelly Bruland ,  Brian Baird ,  Ho Lo ,  Stephen Swaringen ,  Frank Evans

发明人： Kelly Bruland ,  Brian Baird ,  Ho Lo ,  Stephen Swaringen ,  Frank Evans

IPC分类号： B23K26/00 ,  B23K26/06 ,  B23K26/067 ,  B23K26/08 ,  B23K26/10 ,  B23K26/38 ,  B23K26/40 ,  H01L21/768 ,  H01L23/525

CPC分类号： H01L23/5258 ,  B23K26/0613 ,  B23K26/0624 ,  B23K26/067 ,  B23K26/10 ,  B23K2101/40 ,  H01L21/76894 ,  H01L2924/0002 ,  H01L2924/00

摘要： Methods and systems selectively irradiate structures on or within a semiconductor substrate using a plurality of pulsed laser beams. The structures are arranged in a row extending in a generally lengthwise direction. The method generates a first pulsed laser beam that propagates along a first laser beam axis that intersects the semiconductor substrate and a second pulsed laser beam that propagates along a second laser beam axis that intersects the semiconductor substrate. The method directs respective first and second pulses from the first and second pulsed laser beams onto distinct first and second structures in the row so as to complete irradiation of said structures with a single laser pulse per structure. The method moves the first and second laser beam axes relative to the semiconductor substrate substantially in unison in a direction substantially parallel to the lengthwise direction of the row, so as to selectively irradiate structures in the row with either the first or the second laser beam. The moving step results in a speed that is greater than would occur if only a single laser beam were utilized to irradiate the structures in the row.

摘要翻译： 方法和系统使用多个脉冲激光束选择性地照射半导体衬底上或内部的结构。 这些结构被布置成在大体上沿长度方向延伸的一排。 该方法产生沿着与半导体衬底相交的第一激光束轴传播的第一脉冲激光束和沿着与半导体衬底相交的第二激光束轴传播的第二脉冲激光束。 该方法将来自第一和第二脉冲激光束的相应的第一和第二脉冲引导到行中不同的第一和第二结构，以便用每个结构的单个激光脉冲完成所述结构的照射。 该方法相对于半导体衬底基本上在与行的长度方向平行的方向基本上一致地移动第一和第二激光束轴线，以便用第一或第二激光束选择性地照射该行中的结构。 移动步骤导致的速度大于如果仅使用单个激光束来照射行中的结构的速度。

公开(公告)号：US20050282367A1

公开(公告)日：2005-12-22

申请号：US11051263

申请日：2005-02-04

申请人： Kelly Bruland ,  Brian Baird ,  Ho Lo ,  Frank Evans

发明人： Kelly Bruland ,  Brian Baird ,  Ho Lo ,  Frank Evans

IPC分类号： B23K26/067 ,  H01L21/425

CPC分类号： B23K26/067

摘要： Methods and systems selectively irradiate structures on or within a semiconductor substrate using a plurality of laser beams. The structures are arranged in a row extending in a generally lengthwise direction. The method generates a first laser beam that propagates along a first laser beam axis that intersects the semiconductor substrate and a second laser beam that propagates along a second laser beam axis that intersects the semiconductor substrate. The method directs the first and second laser beams onto non-adjacent first and second structures in the row. The method moves the first and second laser beam axes relative to the semiconductor substrate along the row substantially in unison in a direction substantially parallel to the lengthwise direction of the row.

摘要翻译： 方法和系统使用多个激光束选择性地照射半导体衬底上或内部的结构。 这些结构被布置成在大体上沿长度方向延伸的一排。 该方法产生沿着与半导体衬底相交的第一激光束轴传播的第一激光束和沿着与半导体衬底相交的第二激光束轴传播的第二激光束。 该方法将第一和第二激光束引导到行中不相邻的第一和第二结构。 该方法使第一激光束和第二激光束相对于半导体衬底在基本上平行于该行的长度方向的方向上大致一齐地沿着行移动。

公开(公告)号：US20050282319A1

公开(公告)日：2005-12-22

申请号：US11051261

申请日：2005-02-04

申请人： Kelly Bruland ,  Brian Baird ,  Ho Lo ,  Richard Harris ,  Yunlong Sun

发明人： Kelly Bruland ,  Brian Baird ,  Ho Lo ,  Richard Harris ,  Yunlong Sun

IPC分类号： B23K26/06 ,  B23K26/067 ,  H01L21/00 ,  H01L21/26 ,  H01L21/302 ,  H01L21/324 ,  H01L21/42 ,  H01L21/461 ,  H01L21/477 ,  H01L21/84 ,  H01L23/525

CPC分类号： B23K26/067 ,  B23K26/0604 ,  B23K26/0613 ,  H01L21/76894 ,  H01L23/5258 ,  H01L27/1052 ,  H01L27/10894 ,  H01L2924/0002 ,  H01L2924/00

摘要： Methods and systems use laser pulses to process a selected structure on or within a semiconductor substrate. The structure has a surface, a width, and a length. The laser pulses propagate along axes that move along a scan beam path relative to the substrate as the laser pulses process the selected structure. The method simultaneously generates on the selected structure first and second laser beam pulses that propagate along respective first and second laser beam axes intersecting the selected structure at distinct first and second locations. The first and second laser beam pulses impinge on the surface of the selected structure respective first and second beam spots. Each beam spot encompasses at least the width of the selected link. The first and second beam spots are spatially offset from one another along the length of the selected structure to define an overlapping region covered by both the first and the second beam spots and a total region covered by one or both of the first and second beam spots. The total region is larger than the first beam spot and also larger than the second beam spot. The method sets respective first and second energy values of the first and second laser beam pulses to cause complete depthwise processing of the selected structure across the width of the structure in at least a portion of the total region.

摘要翻译： 方法和系统使用激光脉冲来处理半导体衬底上或其中的选定结构。 该结构具有表面，宽度和长度。 随着激光脉冲处理所选择的结构，激光脉冲沿着沿扫描光束路径相对于衬底移动的轴传播。 所述方法同时在所选择的结构上产生沿相应的第一和第二激光束轴线在不同的第一和第二位置与所选择的结构相交的第一和第二激光束脉冲。 第一和第二激光束脉冲冲击所选结构的表面上相应的第一和第二光束点。 每个光束点至少包含所选链接的宽度。 第一和第二光束斑点沿着所选择的结构的长度在空间上彼此偏移以限定由第一和第二光束点两者覆盖的重叠区域，以及由第一和第二光束斑点中的一个或两个覆盖的总区域 。 总区域大于第一束斑，并且大于第二束斑。 该方法设置第一和第二激光束脉冲的相应的第一和第二能量值，以便在整个区域的至少一部分中跨结构的宽度对所选结构进行完全深度处理。

公开(公告)号：US20050282406A1

公开(公告)日：2005-12-22

申请号：US11051262

申请日：2005-02-04

申请人： Kelly Bruland ,  Brian Baird ,  Ho Lo

发明人： Kelly Bruland ,  Brian Baird ,  Ho Lo

IPC分类号： B23K26/067 ,  H01L21/26 ,  H01L21/768

CPC分类号： B23K26/067 ,  B23K26/0613 ,  H01L21/76894

摘要： Methods and systems process a semiconductor substrate having a plurality of structures to be selectively irradiated with multiple laser beams. The structures are arranged in a plurality of substantially parallel rows extending in a generally lengthwise direction. The method generates a first laser beam that propagates along a first laser beam axis that intersects a first target location on or within the semiconductor substrate. The method also generates a second laser beam that propagates along a second laser beam axis that intersects a second target location on or within the semiconductor substrate. The second target location is offset from the first target location in a direction perpendicular to the lengthwise direction of the rows by some amount such that, when the first target location is a structure on a first row of structures, the second target location is a structure or between two adjacent structures on a second row distinct from the first row. The method moves the semiconductor substrate relative to the first and second laser axes in a direction approximately parallel to the rows of structures, so as to pass the first target location along the first row to irradiate for a first time selected structures in the first row, and so as to simultaneously pass the second target location along the second row to irradiate for a second time structures previously irradiated by the first laser beam during a previous pass of the first target location along the second row.

摘要翻译： 方法和系统处理具有多个结构的半导体衬底以选择性地照射多个激光束。 这些结构被布置成沿大致长度方向延伸的多个基本上平行的行。 该方法产生沿着与半导体衬底上或半导体衬底内的第一目标位置相交的第一激光束轴传播的第一激光束。 该方法还产生沿着与半导体衬底上或第二靶标位置相交的第二激光束轴传播的第二激光束。 第二目标位置在垂直于行长度方向的方向上偏离第一目标位置一定量，使得当第一目标位置是第一行结构上的结构时，第二目标位置是结构 或在与第一行不同的第二行上的两个相邻结构之间。 所述方法使所述半导体衬底相对于所述第一和第二激光轴在大致平行于所述结构行的方向上移动，以使所述第一目标位置沿着所述第一行通过，以在所述第一行中首次照射所选择的结构， 并且沿着第二行同时通过第二目标位置以照射先前在第一目标位置沿着第二行的先前通过期间由第一激光束照射的第二时间结构。

公开(公告)号：US20050224469A1

公开(公告)日：2005-10-13

申请号：US11000333

申请日：2004-11-29

申请人： Donald Cutler ,  Brian Baird ,  Richard Harris ,  David Hemenway ,  Ho Lo ,  Brady Nilsen ,  Yasu Osako ,  Lei Sun ,  Yunlong Sun ,  Mark Unrath

发明人： Donald Cutler ,  Brian Baird ,  Richard Harris ,  David Hemenway ,  Ho Lo ,  Brady Nilsen ,  Yasu Osako ,  Lei Sun ,  Yunlong Sun ,  Mark Unrath

IPC分类号： B23K26/06 ,  B23K26/00

CPC分类号： B23K26/06

摘要： A laser beam switching system employs a laser coupled to a beam switching device that causes a laser beam to switch between first and second beam positioning heads such that while the first beam positioning head is directing the laser beam to process a workpiece target location, the second beam positioning head is moving to another target location and vice versa. A preferred beam switching device includes first and second AOMs positioned such that the laser beam passes through the AOMs without being deflected. When RF is applied to the first AOM, the laser beam is diffracted toward the first beam positioning head, and when RF is applied to the second AOM, the laser beam is diffracted toward the second beam positioning head.

摘要翻译： 激光束切换系统采用耦合到光束切换装置的激光器，其使激光束在第一和第二光束定位头之间切换，使得当第一光束定位头引导激光束来处理工件目标位置时，第二 光束定位头正在移动到另一个目标位置，反之亦然。 优选的光束切换装置包括第一和第二AOM，其被定位成使得激光束不经偏转地穿过AOM。 当RF施加到第一AOM时，激光束朝向第一光束定位头衍射，并且当RF施加到第二AOM时，激光束被朝向第二光束定位头衍射。

公开(公告)号：US20060114948A1

公开(公告)日：2006-06-01

申请号：US11000330

申请日：2004-11-29

申请人： Ho Lo ,  Yunlong Sun ,  Richard Harris ,  Brian Baird

发明人： Ho Lo ,  Yunlong Sun ,  Richard Harris ,  Brian Baird

IPC分类号： H01S3/10 ,  H01S3/08

CPC分类号： B23K26/067 ,  B23K26/0673

摘要： A workpiece processing system employs a common modular imaged optics assembly and an optional variable beam expander for optically processing multiple laser beams. In one embodiment, a laser and a fixed beam expander cooperate to produce a laser beam that propagates through a beam switching device to produce multiple laser beams that propagate along separate propagation path portions and subsequently merge into a common path portion through an imaged optics assembly and optional variable expander. The beam expander sets the shape of the laser beams in the form of a Gaussian spatial distribution of light energy. The imaged optics assembly shapes the Gaussian spatial distribution of the laser beams to form output beams of uniform spatial distribution. In an alternative embodiment, the beam switching device is removed and the laser beams propagate from separate laser sources associated with separate optional beam expanders.

摘要翻译： 工件处理系统采用通用的模块化成像光学组件和用于光学处理多个激光束的可选可变光束扩展器。 在一个实施例中，激光器和固定光束扩展器协作以产生通过光束切换装置传播的激光束，以产生沿分离的传播路径部分传播并随后通过成像的光学组件并入公共路径部分的多个激光束， 可选扩展器。 光束扩展器以光能的高斯空间分布的形式设置激光束的形状。 成像光学组件对激光束的高斯空间分布进行整形，形成均匀空间分布的输出光束。 在替代实施例中，去除光束切换装置，并且激光束从与单独的可选光束扩展器相关联的分离的激光源传播。

公开(公告)号：US20050067388A1

公开(公告)日：2005-03-31

申请号：US10921481

申请日：2004-08-18

申请人： Yunlong Sun ,  Richard Harris ,  Ho Lo ,  Brian Baird ,  Jay Johnson

发明人： Yunlong Sun ,  Richard Harris ,  Ho Lo ,  Brian Baird ,  Jay Johnson

IPC分类号： B23K20060101 ,  B23K26/06 ,  B23K26/38 ,  H01S20060101 ,  H04J14/02

CPC分类号： H01L23/5258 ,  B23K26/0613 ,  B23K26/0622 ,  B23K2101/40 ,  H01L2924/0002 ,  H01L2924/00

摘要： A laser pulse with a specially tailored temporal power profile, instead of a conventional temporal shape or substantially square shape, severs an IC link. The specially tailored laser pulse preferably has either an overshoot at the beginning of the laser pulse or a spike peak within the duration of the laser pulse. The timing of the spike peak is preferably set ahead of the time when the link is mostly removed. A specially tailored laser pulse power profile allows the use of a wider laser pulse energy range and shorter laser wavelengths, such as the green and UV, to sever the links without appreciable damage to the substrate and passivation structure material located on either side of and underlying the links.

摘要翻译： 具有特别定制的时间功率分布的激光脉冲代替传统的时间形状或基本上正方形的形状来切断IC连接。 特别定制的激光脉冲优选地在激光脉冲的开始处具有过冲，或者在激光脉冲的持续时间内具有尖峰​​。 尖峰的定时优先设置在链路被大部分去除的时间之前。 特别定制的激光脉冲功率轮廓允许使用更宽的激光脉冲能量范围和更短的激光波长（例如绿色和紫外线）来切断连接，而不会对基板和钝化结构材料的任何一侧和底层 链接。