公开(公告)号：US20080218735A1

公开(公告)日：2008-09-11

申请号：US10585343

申请日：2004-12-13

申请人： Kazuhiro Atsumi ,  Koji Kuno ,  Masayoshi Kusunoki ,  Tatsuya Suzuki ,  Kenshi Fukumitsu ,  Fumitsugu Fukuyo

发明人： Kazuhiro Atsumi ,  Koji Kuno ,  Masayoshi Kusunoki ,  Tatsuya Suzuki ,  Kenshi Fukumitsu ,  Fumitsugu Fukuyo

IPC分类号： G01N21/00 ,  G02B27/02

CPC分类号： B23K26/048 ,  B23K26/046 ,  B23K26/0648 ,  B23K26/38 ,  B23K26/40 ,  B23K26/53 ,  B23K2101/40 ,  B23K2103/50 ,  B23K2103/56 ,  B28D5/0011 ,  H01L21/67092 ,  H01L21/78

摘要： A laser processing method which can efficiently perform laser processing while minimizing the deviation of the converging point of a laser beam in end parts of an object to be processed is provided.This laser processing method comprises a preparatory step of holding a lens at an initial position set such that a converging point is located at a predetermined position within the object; a first processing step (S11 and S12) of emitting a first laser beam for processing while holding the lens at the initial position, and moving the lens and the object relative to each other along a main surface so as to form a modified region in one end part of a line to cut; and a second processing step (S13 and S14) of releasing the lens from being held at the initial position after forming the modified region in the one end part of the line to cut, and then moving the lens and the object relative to each other along the main surface while adjusting the gap between the lens and the main surface after the release, so as to form the modified region.

摘要翻译： 提供了一种可以有效地执行激光加工同时最小化激光束在待处理物体的端部中的会聚点的偏差的激光加工方法。 该激光加工方法包括：准备步骤，将透镜保持在初始位置，使得会聚点位于物体内的预定位置; 在将透镜保持在初始位置的同时发射用于处理的第一激光束并沿着主表面相对于彼此移动透镜和物体的第一处理步骤（S11和S12），以形成修改区域 在一端切割一条线; 以及在要切割的线的一个端部中形成修改区域之后将透镜释放保持在初始位置的第二处理步骤（S13和S14），然后相对于每个移动透镜和物体 另外沿着主表面，同时在释放之后调整透镜和主表面之间的间隙，从而形成改质区域。

公开(公告)号：US08624153B2

公开(公告)日：2014-01-07

申请号：US10585343

申请日：2004-12-13

申请人： Kazuhiro Atsumi ,  Koji Kuno ,  Masayoshi Kusunoki ,  Tatsuya Suzuki ,  Kenshi Fukumitsu ,  Fumitsugu Fukuyo

发明人： Kazuhiro Atsumi ,  Koji Kuno ,  Masayoshi Kusunoki ,  Tatsuya Suzuki ,  Kenshi Fukumitsu ,  Fumitsugu Fukuyo

IPC分类号： B23K26/14

CPC分类号： B23K26/048 ,  B23K26/046 ,  B23K26/0648 ,  B23K26/38 ,  B23K26/40 ,  B23K26/53 ,  B23K2101/40 ,  B23K2103/50 ,  B23K2103/56 ,  B28D5/0011 ,  H01L21/67092 ,  H01L21/78

摘要： A laser processing method which can efficiently perform laser processing while minimizing the deviation of the converging point of a laser beam in end parts of an object to be processed is provided.This laser processing method comprises a preparatory step of holding a lens at an initial position set such that a converging point is located at a predetermined position within the object; a first processing step (S11 and S12) of emitting a first laser beam for processing while holding the lens at the initial position, and moving the lens and the object relative to each other along a main surface so as to form a modified region in one end part of a line to cut; and a second processing step (S13 and S14) of releasing the lens from being held at the initial position after forming the modified region in the one end part of the line to cut, and then moving the lens and the object relative to each other along the main surface while adjusting the gap between the lens and the main surface after the release, so as to form the modified region.

摘要翻译： 提供了一种可以有效地执行激光加工同时最小化激光束在待处理物体的端部中的会聚点的偏差的激光加工方法。 该激光加工方法包括：准备步骤，将透镜保持在初始位置，使得会聚点位于物体内的预定位置; 第一处理步骤（S11和S12），其在将透镜保持在初始位置的同时发射用于处理的第一激光束，并且沿着主表面相对于彼此移动透镜和物体，以在一个主表面上形成改质区域 一段线切断; 以及第二处理步骤（S13和S14），其在形成要切割的线的一个端部中的改质区域之后，将透镜保持在初始位置，然后沿着彼此移动透镜和物体 主表面同时调整透镜与主表面之间的间隙释放后，形成改质区域。

公开(公告)号：US08946592B2

公开(公告)日：2015-02-03

申请号：US13432833

申请日：2012-03-28

申请人： Fumitsugu Fukuyo ,  Kenshi Fukumitsu ,  Naoki Uchiyama ,  Toshimitsu Wakuda

发明人： Fumitsugu Fukuyo ,  Kenshi Fukumitsu ,  Naoki Uchiyama ,  Toshimitsu Wakuda

IPC分类号： B23K26/00 ,  C03C23/00 ,  B23K26/03 ,  B23K26/04 ,  B23K26/06 ,  B23K26/073 ,  B23K26/08 ,  B23K26/36 ,  B23K26/40 ,  B28D5/00 ,  C03B33/023 ,  C03B33/08 ,  C03B33/10 ,  G02F1/1368

CPC分类号： H01L21/78 ,  B23K20/023 ,  B23K20/16 ,  B23K20/233 ,  B23K20/26 ,  B23K26/03 ,  B23K26/032 ,  B23K26/034 ,  B23K26/046 ,  B23K26/0624 ,  B23K26/066 ,  B23K26/073 ,  B23K26/0853 ,  B23K26/16 ,  B23K26/364 ,  B23K26/40 ,  B23K26/53 ,  B23K2101/40 ,  B23K2103/50 ,  B28D5/0011 ,  B65G2249/04 ,  C03B33/023 ,  C03B33/082 ,  C03B33/102 ,  C03C23/0025 ,  G02F1/1368 ,  H01L21/6836 ,  H01L2221/68327 ,  Y02P40/57 ,  Y10T29/49144 ,  Y10T83/0341

摘要： A laser beam machining method and a laser beam machining device capable of cutting a work without producing a fusing and a cracking out of a predetermined cutting line on the surface of the work, wherein a pulse laser beam is radiated on the predetermined cutting line on the surface of the work to cause multiple photon absorption and with a condensed point located inside of the work, and a modified area is formed inside the work along the predetermined determined cutting line by moving the condensed point along the predetermined cut line, whereby the work is cut with a small force by cracking the work along the predetermined cutting line starting from the modified area and, because the pulse laser beam is hardly absorbed onto the surface.

摘要翻译： 一种激光束加工方法和激光束加工装置，其能够切割工件而不会产生工件表面上的预定切割线的定影和裂纹，其中脉冲激光束照射在工件表面上的预定切割线上 工作的表面，引起多光子吸收并且具有位于工件内部的凝结点，并且沿着预定的切割线沿着预定的切割线沿着预定的切割线移动凝结点，在工件内部形成改质区域，由此工件 通过从修改区域开始沿着预定切割线开裂工件，并且因为脉冲激光束几乎不被吸收到表面上，所以以小的力切割。

公开(公告)号：US08946591B2

公开(公告)日：2015-02-03

申请号：US13428336

申请日：2012-03-23

申请人： Fumitsugu Fukuyo ,  Kenshi Fukumitsu ,  Naoki Uchiyama ,  Toshimitsu Wakuda

发明人： Fumitsugu Fukuyo ,  Kenshi Fukumitsu ,  Naoki Uchiyama ,  Toshimitsu Wakuda

IPC分类号： B23K26/00 ,  C03C23/00 ,  B23K26/03 ,  B23K26/04 ,  B23K26/06 ,  B23K26/073 ,  B23K26/08 ,  B23K26/36 ,  B23K26/40 ,  C03B33/023 ,  C03B33/08 ,  C03B33/10 ,  G02F1/1368

CPC分类号： H01L21/78 ,  B23K20/023 ,  B23K20/16 ,  B23K20/233 ,  B23K20/26 ,  B23K26/03 ,  B23K26/032 ,  B23K26/034 ,  B23K26/046 ,  B23K26/0624 ,  B23K26/066 ,  B23K26/073 ,  B23K26/0853 ,  B23K26/16 ,  B23K26/364 ,  B23K26/40 ,  B23K26/53 ,  B23K2101/40 ,  B23K2103/50 ,  B28D5/0011 ,  B65G2249/04 ,  C03B33/023 ,  C03B33/082 ,  C03B33/102 ,  C03C23/0025 ,  G02F1/1368 ,  H01L21/6836 ,  H01L2221/68327 ,  Y02P40/57 ,  Y10T29/49144 ,  Y10T83/0341

摘要： A laser beam machining method and a laser beam machining device capable of cutting a work without producing a fusing and a cracking out of a predetermined cutting line on the surface of the work, wherein a pulse laser beam is radiated on the predetermined cutting line on the surface of the work to cause multiple photon absorption and with a condensed point located inside of the work, and a modified area is formed inside the work along the predetermined determined cutting line by moving the condensed point along the predetermined cut line, whereby the work is cut with a small force by cracking the work along the predetermined cutting line starting from the modified area and, because the pulse laser beam is hardly absorbed onto the surface.

摘要翻译： 一种激光束加工方法和激光束加工装置，其能够切割工件而不会产生工件表面上的预定切割线的定影和裂纹，其中脉冲激光束照射在工件表面上的预定切割线上 工作的表面，引起多光子吸收并且具有位于工件内部的凝结点，并且沿着预定的切割线沿着预定的切割线沿着预定的切割线移动凝结点，在工件内部形成改质区域，由此工件 通过从修改区域开始沿着预定切割线开裂工件，并且因为脉冲激光束几乎不被吸收到表面上，所以以小的力切割。

公开(公告)号：US08937264B2

公开(公告)日：2015-01-20

申请号：US13432949

申请日：2012-03-28

申请人： Fumitsugu Fukuyo ,  Kenshi Fukumitsu ,  Naoki Uchiyama ,  Toshimitsu Wakuda

发明人： Fumitsugu Fukuyo ,  Kenshi Fukumitsu ,  Naoki Uchiyama ,  Toshimitsu Wakuda

IPC分类号： B23K26/00 ,  C03C23/00 ,  B23K26/03 ,  B23K26/04 ,  B23K26/06 ,  B23K26/073 ,  B23K26/08 ,  B23K26/36 ,  B23K26/40 ,  B28D5/00 ,  C03B33/023 ,  C03B33/08 ,  C03B33/10 ,  G02F1/1368

CPC分类号： H01L21/78 ,  B23K20/023 ,  B23K20/16 ,  B23K20/233 ,  B23K20/26 ,  B23K26/03 ,  B23K26/032 ,  B23K26/034 ,  B23K26/046 ,  B23K26/0624 ,  B23K26/066 ,  B23K26/073 ,  B23K26/0853 ,  B23K26/16 ,  B23K26/364 ,  B23K26/40 ,  B23K26/53 ,  B23K2101/40 ,  B23K2103/50 ,  B28D5/0011 ,  B65G2249/04 ,  C03B33/023 ,  C03B33/082 ,  C03B33/102 ,  C03C23/0025 ,  G02F1/1368 ,  H01L21/6836 ,  H01L2221/68327 ,  Y02P40/57 ,  Y10T29/49144 ,  Y10T83/0341

摘要： A laser beam machining method and a laser beam machining device capable of cutting a work without producing a fusing and a cracking out of a predetermined cutting line on the surface of the work, wherein a pulse laser beam is radiated on the predetermined cut line on the surface of the work under the conditions causing a multiple photon absorption and with a condensed point aligned to the inside of the work, and a modified area is formed inside the work along the predetermined determined cut line by moving the condensed point along the predetermined cut line, whereby the work can be cut with a rather small force by cracking the work along the predetermined cut line starting from the modified area and, because the pulse laser beam radiated is not almost absorbed onto the surface of the work, the surface is not fused even if the modified area is formed.

公开(公告)号：US08450187B2

公开(公告)日：2013-05-28

申请号：US13608676

申请日：2012-09-10

申请人： Fumitsugu Fukuyo ,  Kenshi Fukumitsu ,  Naoki Uchiyama ,  Ryuji Sugiura

发明人： Fumitsugu Fukuyo ,  Kenshi Fukumitsu ,  Naoki Uchiyama ,  Ryuji Sugiura

IPC分类号： H01L21/00

CPC分类号： H01L21/2633 ,  B23K26/0853 ,  B23K26/40 ,  B23K26/53 ,  B23K2101/40 ,  B23K2103/50 ,  B28D1/221 ,  H01L21/6835 ,  H01L21/6836 ,  H01L21/78 ,  H01L24/27 ,  H01L24/29 ,  H01L24/83 ,  H01L2221/68327 ,  H01L2221/68336 ,  H01L2224/274 ,  H01L2224/2919 ,  H01L2224/83191 ,  H01L2224/8385 ,  H01L2924/01005 ,  H01L2924/01006 ,  H01L2924/01011 ,  H01L2924/01013 ,  H01L2924/01015 ,  H01L2924/01023 ,  H01L2924/01027 ,  H01L2924/0103 ,  H01L2924/01033 ,  H01L2924/01039 ,  H01L2924/0106 ,  H01L2924/01074 ,  H01L2924/01075 ,  H01L2924/01078 ,  H01L2924/01082 ,  H01L2924/07802 ,  H01L2924/10329 ,  H01L2924/12042 ,  H01L2924/12043 ,  H01L2924/351 ,  H01L2924/3512 ,  H01L2924/00

摘要： Multiphoton absorption is generated, so as to form a part which is intended to be cut 9 due to a molten processed region 13 within a silicon wafer 11, and then an adhesive sheet 20 bonded to the silicon wafer 11 is expanded. This cuts the silicon wafer 11 along the part which is intended to be cut 9 with a high precision into semiconductor chips 25. Here, opposing cut sections 25a, 25a of neighboring semiconductor chips 25, 25 are separated from each other from their close contact state, whereby a die-bonding resin layer 23 is also cut along the part which is intended to be cut 9. Therefore, the silicon wafer 11 and die-bonding resin layer 23 can be cut much more efficiently than in the case where the silicon wafer 11 and die-bonding resin layer 23 are cut with a blade without cutting a base 21.

摘要翻译： 产生多光子吸收，从而形成由于硅晶片11内的熔融处理区域13而被切割的部分9，然后，粘合到硅晶片11的粘合片20膨胀。 这样，将硅晶片11沿着要被切割的部分9以高精度切割成半导体芯片25.这里，相邻的半导体芯片25,25的相对的切割部分25a，25a从它们的紧密接触状态彼此分离 由此，沿着要切割的部分9也切割芯片接合树脂层23.因此，与硅晶片11和芯片接合树脂层23的情况相比，可以更有效地切割硅晶片11和芯片接合树脂层23。 11和芯片接合树脂层23用刀片切割而不切割基部21。

公开(公告)号：US08314013B2

公开(公告)日：2012-11-20

申请号：US12762444

申请日：2010-04-19

申请人： Yoshimaro Fujii ,  Fumitsugu Fukuyo ,  Kenshi Fukumitsu ,  Naoki Uchiyama

发明人： Yoshimaro Fujii ,  Fumitsugu Fukuyo ,  Kenshi Fukumitsu ,  Naoki Uchiyama

IPC分类号： H01L21/00

CPC分类号： H01L21/78 ,  B23K26/0057 ,  B23K26/0622 ,  B23K26/40 ,  B23K26/53 ,  B23K2103/50 ,  B23K2203/50 ,  B28D5/00 ,  B28D5/0011 ,  H01L21/268 ,  H01L21/304 ,  H01L21/30604 ,  H01L21/6836 ,  H01L21/76894 ,  H01L23/544 ,  H01L23/562 ,  H01L2221/68327 ,  H01L2221/68336 ,  H01L2223/5446 ,  H01L2924/00 ,  H01L2924/0002

摘要： A substrate dividing method which can thin and divide a substrate while preventing chipping and cracking from occurring. This substrate dividing method comprises the steps of irradiating a semiconductor substrate 1 having a front face 3 formed with functional devices 19 with laser light while positioning a light-converging point within the substrate, so as to form a modified region including a molten processed region due to multiphoton absorption within the semiconductor substrate 1, and causing the modified region including the molten processed region to form a starting point region for cutting; and grinding a rear face 21 of the semiconductor substrate 1 after the step of forming the starting point region for cutting such that the semiconductor substrate 1 attains a predetermined thickness.

摘要翻译： 一种衬底分割方法，其可以在防止发生破裂和破裂的同时使衬底细分割。 该基板分割方法包括以下步骤：将具有形成有功能元件19的正面3的半导体基板1照射在基板内，同时将聚光点定位在基板内，从而形成包含熔融处理区域的改质区域 在半导体衬底1内进行多光子吸收，并且使包含熔融处理区域的改性区域形成切割起点区域; 在形成用于切割的起点区域的步骤之后，研磨半导体衬底1的后表面21，使得半导体衬底1达到预定厚度。

公开(公告)号：US08304325B2

公开(公告)日：2012-11-06

申请号：US11987328

申请日：2007-11-29

申请人： Yoshimaro Fujii ,  Fumitsugu Fukuyo ,  Kenshi Fukumitsu ,  Naoki Uchiyama

发明人： Yoshimaro Fujii ,  Fumitsugu Fukuyo ,  Kenshi Fukumitsu ,  Naoki Uchiyama

IPC分类号： H01L21/00

CPC分类号： H01L21/78 ,  B23K26/0057 ,  B23K26/0622 ,  B23K26/40 ,  B23K26/53 ,  B23K2103/50 ,  B23K2203/50 ,  B28D5/00 ,  B28D5/0011 ,  H01L21/268 ,  H01L21/304 ,  H01L21/30604 ,  H01L21/6836 ,  H01L21/76894 ,  H01L23/544 ,  H01L23/562 ,  H01L2221/68327 ,  H01L2221/68336 ,  H01L2223/5446 ,  H01L2924/00 ,  H01L2924/0002

摘要： A substrate dividing method which can thin and divide a substrate while preventing chipping and cracking from occurring. This substrate dividing method comprises the steps of irradiating a semiconductor substrate 1 having a front face 3 formed with functional devices 19 with laser light while positioning a light-converging point within the substrate, so as to form a modified region including a molten processed region due to multiphoton absorption within the semiconductor substrate 1, and causing the modified region including the molten processed region to form a starting point region for cutting; and grinding a rear face 21 of the semiconductor substrate 1 after the step of forming the starting point region for cutting such that the semiconductor substrate 1 attains a predetermined thickness.

摘要翻译： 一种衬底分割方法，其可以在防止发生破裂和破裂的同时使衬底细分割。 该基板分割方法包括以下步骤：将具有形成有功能元件19的正面3的半导体基板1照射在基板内，同时将聚光点定位在基板内，从而形成包含熔融处理区域的改质区域 在半导体衬底1内进行多光子吸收，并且使包含熔融处理区域的改性区域形成切割起点区域; 在形成用于切割的起点区域的步骤之后，研磨半导体衬底1的后表面21，使得半导体衬底1达到预定厚度。

公开(公告)号：US08283595B2

公开(公告)日：2012-10-09

申请号：US12461969

申请日：2009-08-31

申请人： Fumitsugu Fukuyo ,  Kenshi Fukumitsu ,  Naoki Uchiyama ,  Toshimitsu Wakuda

发明人： Fumitsugu Fukuyo ,  Kenshi Fukumitsu ,  Naoki Uchiyama ,  Toshimitsu Wakuda

IPC分类号： B23K26/36 ,  H01L21/302 ,  C03B33/02

CPC分类号： H01L21/78 ,  B23K20/023 ,  B23K20/16 ,  B23K20/233 ,  B23K20/26 ,  B23K26/03 ,  B23K26/032 ,  B23K26/034 ,  B23K26/046 ,  B23K26/0624 ,  B23K26/066 ,  B23K26/073 ,  B23K26/0853 ,  B23K26/16 ,  B23K26/364 ,  B23K26/40 ,  B23K26/53 ,  B23K2101/40 ,  B23K2103/50 ,  B28D5/0011 ,  B65G2249/04 ,  C03B33/023 ,  C03B33/082 ,  C03B33/102 ,  C03C23/0025 ,  G02F1/1368 ,  H01L21/6836 ,  H01L2221/68327 ,  Y02P40/57 ,  Y10T29/49144 ,  Y10T83/0341

摘要： A laser beam machining method and a laser beam machining device capable of cutting a work without producing a fusing and a cracking out of a predetermined cutting line on the surface of the work, wherein a pulse laser beam is radiated on the predetermined cut line on the surface of the work under the conditions causing a multiple photon absorption and with a condensed point aligned to the inside of the work, and a modified area is formed inside the work along the predetermined determined cut line by moving the condensed point along the predetermined cut line, whereby the work can be cut with a rather small force by cracking the work along the predetermined cut line starting from the modified area and, because the pulse laser beam radiated is not almost absorbed onto the surface of the work, the surface is not fused even if the modified area is formed.

公开(公告)号：US07732730B2

公开(公告)日：2010-06-08

申请号：US11106643

申请日：2005-04-15

申请人： Fumitsugu Fukuyo ,  Kenshi Fukumitsu ,  Naoki Uchiyama ,  Toshimitsu Wakuda

发明人： Fumitsugu Fukuyo ,  Kenshi Fukumitsu ,  Naoki Uchiyama ,  Toshimitsu Wakuda

IPC分类号： B23K26/00

CPC分类号： H01L21/78 ,  B23K20/023 ,  B23K20/16 ,  B23K20/233 ,  B23K20/26 ,  B23K26/03 ,  B23K26/032 ,  B23K26/034 ,  B23K26/046 ,  B23K26/0624 ,  B23K26/066 ,  B23K26/073 ,  B23K26/0853 ,  B23K26/16 ,  B23K26/364 ,  B23K26/40 ,  B23K26/53 ,  B23K2101/40 ,  B23K2103/50 ,  B28D5/0011 ,  B65G2249/04 ,  C03B33/023 ,  C03B33/082 ,  C03B33/102 ,  C03C23/0025 ,  G02F1/1368 ,  H01L21/6836 ,  H01L2221/68327 ,  Y02P40/57 ,  Y10T29/49144 ,  Y10T83/0341

摘要： A laser beam machining method and a laser beam machining device capable of cutting a work without producing a fusing and a cracking out of a predetermined cutting line on the surface of the work, wherein a pulse laser beam is radiated on the predetermined cut line on the surface of the work under the conditions causing a multiple photon absorption and with a condensed point aligned to the inside of the work, and a modified area is formed inside the work along the predetermined determined cut line by moving the condensed point along the predetermined cut line, whereby the work can be cut with a rather small force by cracking the work along the predetermined cut line starting from the modified area and, because the pulse laser beam radiated is not almost absorbed onto the surface of the work, the surface is not fused even if the modified area is formed.

摘要翻译： 一种激光束加工方法和激光束加工装置，其能够切割工件而不产生在工件表面上的预定切割线的定影和裂纹，其中脉冲激光束照射在工件的预定切割线上 在导致多光子吸收的条件下并且具有与工件内部对准的凝聚点的工作表面，并且沿着预定的切割线沿着预定的切割线沿着预定的切割线移动凝聚点而在工件内部形成改质区域 由此，可以用相当小的力通过从修改区域开始沿着预定切割线的工作而切割工件，并且因为辐射的脉冲激光束几乎不被吸收到工件的表面上，所以表面不熔合 即使形成了修改区域。