WO2012121049A1 - 測定用治具、ワイヤソー、及びワーク装着方法 - Google Patents
測定用治具、ワイヤソー、及びワーク装着方法 Download PDFInfo
- Publication number
- WO2012121049A1 WO2012121049A1 PCT/JP2012/054822 JP2012054822W WO2012121049A1 WO 2012121049 A1 WO2012121049 A1 WO 2012121049A1 JP 2012054822 W JP2012054822 W JP 2012054822W WO 2012121049 A1 WO2012121049 A1 WO 2012121049A1
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- WIPO (PCT)
- Prior art keywords
- workpiece
- jig
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- wire saw
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
- B28D5/0058—Accessories specially adapted for use with machines for fine working of gems, jewels, crystals, e.g. of semiconductor material
- B28D5/0082—Accessories specially adapted for use with machines for fine working of gems, jewels, crystals, e.g. of semiconductor material for supporting, holding, feeding, conveying or discharging work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
- B28D5/04—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by tools other than rotary type, e.g. reciprocating tools
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B27/00—Other grinding machines or devices
- B24B27/06—Grinders for cutting-off
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
- B28D5/0058—Accessories specially adapted for use with machines for fine working of gems, jewels, crystals, e.g. of semiconductor material
- B28D5/0064—Devices for the automatic drive or the program control of the machines
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28D—WORKING STONE OR STONE-LIKE MATERIALS
- B28D5/00—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor
- B28D5/04—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by tools other than rotary type, e.g. reciprocating tools
- B28D5/045—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by tools other than rotary type, e.g. reciprocating tools by cutting with wires or closed-loop blades
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
Definitions
- the present invention relates to a wire saw for cutting a workpiece made of a brittle material such as a semiconductor material or ceramic with a wire, and more specifically, a measurement jig for measuring the position of the wire, a wire saw provided with the measurement jig, and measurement.
- the present invention relates to a work mounting method using a jig.
- This type of wire saw includes a plurality of main rollers and a wire stretched between the main rollers.
- the wire is spirally wound around the plurality of main rollers at a predetermined pitch.
- the wire travels along its axis.
- a slurry containing abrasive grains is supplied onto the wire.
- abrasive grains such as diamond are held on the wire, it is not necessary to supply slurry.
- the position of the workpiece is adjusted so that the positions of the workpiece and the wire have a predetermined relationship. In this state, the work is pressed against the wire and cut into slices.
- the wire saw disclosed in Patent Document 1 includes a workpiece orientation adjusting device for adjusting the positional relationship between the crystal orientation of the workpiece and the traveling direction of the wire.
- the work support is supported by the frame.
- the work support can be rotated around a support shaft in a horizontal plane.
- a work support for supporting the work is provided on the lower surface of the work support.
- the frame is provided with an adjusting member for adjusting the crystal orientation of the workpiece so as to coincide with the traveling direction of the wire.
- a differential reduction mechanism is provided between the adjustment member and the work support. The differential reduction mechanism decelerates the adjustment amount of the adjustment member and transmits it to the work support base.
- the workpiece When cutting the workpiece, the workpiece is attached to the workpiece support while being stuck to the support plate. In this state, the crystal orientation of the workpiece is detected from the end face of the workpiece. Then, the positional relationship between the crystal orientation of the workpiece and the traveling direction of the wire is adjusted by the workpiece orientation adjusting device.
- the workpiece is supported on the lower surface of the workpiece support base by the workpiece support structure shown in FIGS.
- a workpiece support 52 is fixed to the lower surface of the workpiece support base 51.
- the workpiece support 52 is formed with a first support groove 52a having a triangular cross section and a second support groove 52b having a square cross section.
- a support block 54 having an engaging portion 54a engaged with the first support groove 52a is provided.
- a lock member 55 engaged with the engagement portion 54a is movably disposed.
- a pair of fixing bolts 56 for pressing the lock member 55 against the engaging portion 54 a is provided on the side surface of the work support 52.
- the lock member 55 is pressed against the engaging portion 54a by tightening the fixing bolt 56 in a state where the engaging portion 54a is inserted into the first support groove 52a.
- the support block 54 is fixed to the work support 52 and the work W is attached to the lower part of the work support 52.
- the operator needs to work while checking the positional relationship between the wire and the work by getting the upper body into the processing area of the wire saw. That is, the operator needs to work while confirming the contact state of the engaging portion 54a with the work support 52 by visual observation or the like. Further, in this case, the mounting position of the workpiece W with respect to the workpiece support 52 tilts as shown by the arrow in FIG. 10, or the workpiece W moves or tilts in the longitudinal direction as shown by the arrow in FIG. There is also a fear. That is, there is a problem that the above work is cumbersome and time-consuming and an error is likely to occur in the mounting position of the workpiece W.
- An object of the present invention is to provide a measuring jig and a wire saw that improve workability and machining efficiency because it is not necessary to adjust the posture of the workpiece with respect to the wire every time the workpiece is mounted on the workpiece support.
- a measuring jig that is attached to and detached from a workpiece support portion of a wire saw.
- the wire saw has a pair of main rollers and a wire stretched between the main rollers.
- the position of the workpiece support portion can be adjusted around an axis extending in the vertical direction.
- the measuring jig is attached to and detached from the work support portion via a plurality of clamp fittings having a positioning function.
- the measuring jig is provided with detecting means for detecting the position of the wire.
- the measuring jig is attached to the work support portion via the plurality of clamp fittings having a positioning function.
- the detection means detects the position of the wire, and the position of the workpiece support portion around the axis extending in the vertical direction is adjusted according to the detection result.
- the position of the clamp metal fitting on the workpiece support portion is set so as to satisfy a predetermined relationship with the position of the wire.
- the workpiece When the workpiece is mounted on the workpiece support portion, the workpiece is fixed to the workpiece jig in a state in which the posture of the workpiece is adjusted in advance. Then, the workpiece jig is mounted on the workpiece support portion via a plurality of clamp fittings. By doing so, it is possible to repeatedly reproduce the exact position of the workpiece jig with respect to the workpiece support portion. For this reason, the position of the workpiece with respect to the workpiece support portion is determined in a state where the positional relationship between the workpiece and the traveling direction of the wire is adjusted. Therefore, it is not necessary to adjust the posture of the workpiece with respect to the wire every time the workpiece is mounted on the workpiece support portion. Therefore, workability is improved and machining efficiency is improved.
- the detecting means preferably optically detects the position of the wire.
- the detection means is preferably movable along the wire axis.
- a wire saw provided with a workpiece support and a workpiece jig is provided.
- the position of the workpiece support portion can be adjusted around an axis extending in the vertical direction.
- the workpiece jig is attached to and detached from the workpiece support.
- the wire saw includes the above-described measuring jig.
- the workpiece jig is also attached to and detached from the workpiece support portion via a plurality of clamp fittings having a positioning function.
- the clamp fitting regulates the vertical and lateral positions of the workpiece jig and the measurement jig.
- the clamp fitting clamps the workpiece jig or the measurement jig with air pressure and spring force.
- a method for mounting a workpiece on a workpiece support portion of a wire saw includes a step of mounting a measurement jig having a camera on a work support portion, a step of detecting the position of the wire while moving the camera in the axial direction of the wire, and a work support based on the detection position of the wire. Rotating the part around the axis extending in the vertical direction and adjusting the position of the work support part, and after removing the measurement jig from the work support part, the work jig to which the work is fixed is used as the work support part. And a mounting step.
- the front view which shows the wire saw which concerns on one Embodiment of this invention The partial front view which expands and shows the workpiece
- the fragmentary sectional view which expands and shows the clamp metal fitting vicinity of a wire saw.
- the partial front view which shows the state which mounted
- the partial side view which shows the state which mounted
- the partial front view which shows the conventional workpiece
- the wire saw includes a machine base 22 and a column 23 in a case 21.
- the column 23 is provided on the machine base 22.
- a pair of main rollers 24 are rotatably supported on the machine base 22.
- the main roller 24 is formed with an annular groove extending along the outer peripheral surface of the main roller 24.
- a wire 25 is spirally wound around the main roller 24 at a predetermined pitch.
- the wire 25 is stretched between the pair of main rollers 24.
- a saddle 26 is supported on the side of the column 23 so as to be movable up and down.
- the saddle 26 is disposed above the wire 25.
- a work support portion 27 is supported on the lower surface of the saddle 26 via a rotary shaft 28 and a bearing 29. The position of the work support portion 27 can be adjusted around a vertical line as an axis extending in the vertical direction.
- FIGS. 1 to 3 four clamp fittings 30 having a positioning function are provided on the lower surface of the work support portion 27.
- a workpiece jig 31 or a measurement jig 42 is mounted on the lower surface of the workpiece support portion 27 via a clamp fitting 30.
- the work jig 31 is made of a metal plate.
- a pallet clamp “model SWT” manufactured by Cosmek Co., Ltd. is used as the clamp fitting 30 having a positioning function.
- a plurality of recesses 32 corresponding to the respective clamp fittings 30 are formed on the upper surface of the workpiece jig 31.
- a clamped member 33 that is engaged with and disengaged from the clamp fitting 30 is fitted in each recess 32.
- the workpiece W is attached to the lower surface of the workpiece jig 31 via an interstitial material 34 made of synthetic resin. In this state, the crystal orientation of the workpiece W is adjusted in the circumferential direction, the horizontal direction, and the vertical direction.
- the clamp fitting 30 includes a clamp case 35, a plurality of steel balls 36, a taper sleeve 37, a piston rod 38, and a spring 39.
- the plurality of steel balls 36 are attached to the outer peripheral surface at the tip of the clamp case 35 so as to be able to appear and retract.
- the taper sleeve 37 is attached to the outer peripheral surface at the tip of the clamp case 35.
- the piston rod 38 is disposed so as to be movable in the vertical direction in the clamp case 35.
- the spring 39 biases the piston rod 38 so as to be immersed from the tip of the clamp case 35.
- An air blow passage 40 is formed in the clamp case 35 and the piston rod 38.
- Air blow from the air blow passage 40 is blown to the outer peripheral surface of the taper sleeve 37 and the tip of the piston rod 38.
- a lock air passage 41 is formed in the clamp case 35. Lock air from the lock air passage 41 is supplied onto the piston 38 a of the piston rod 38.
- An upper end reference surface 33 a is formed at the upper end of the clamped member 33.
- the upper end reference surface 33 a is in contact with the seating surface 35 a on the clamp case 35.
- a taper reference surface 33 b is formed on the inner peripheral surface of the clamped member 33.
- the outer peripheral surface of the taper sleeve 37 is fitted to the taper reference surface 33b.
- a convex portion 33c that is engaged with the steel ball 36 is provided.
- the work jig 31 is mounted on the work support portion 27 as shown in FIG. 6.
- the distal end portion of the clamp case 35 and the taper sleeve 37 are inserted into the clamped member 33.
- the tip of the piston rod 38 is brought into contact with the bottom surface of the recess 32 of the workpiece jig 31.
- the measuring jig 42 is attached to the work support portion 27 via the clamp fitting 30.
- On the upper surface of the measuring jig 42 similarly to the workpiece jig 31, a plurality of clamped members 33 to be engaged with and disengaged from the respective clamp fittings 30 are provided.
- a guide rail 43 is provided on one side surface of the measurement jig 42.
- the guide rail 43 extends substantially along the end surface width direction (the left-right direction in FIG. 8) of the workpiece W supported by the workpiece support portion 27.
- the camera 44 as a detection means is supported on the guide rail 43 via a bracket 45.
- the camera 44 can move along the axis of the wire 25.
- the camera 44 optically detects the position of the wire 25.
- FIG. 1 the operation of the wire saw and the measuring jig will be described with reference to FIGS. 1 to 4, 8 and 9.
- FIG. 1 the operation of the wire saw and the measuring jig will be described with reference to FIGS. 1 to 4, 8 and 9.
- the measuring jig 42 is attached to the work support portion 27 via the clamp fitting 30.
- the position of the measuring jig 42 with respect to the workpiece support 27 is determined with high accuracy in units of ⁇ m.
- the operator moves the camera 44 along the guide rail 43 in the axial direction of the wire 25.
- the camera 44 optically detects the position of the wire 25 while moving as described above.
- the position around the vertical line of the work support portion 27 is adjusted by the rotation shaft 28 based on the detection position of the wire 25.
- the position of the clamp fitting 30 is set so as to satisfy a predetermined relationship with the position of the wire 25.
- the main roller 24 rotates and the wire 25 travels in the axial direction thereof.
- slurry containing abrasive grains is supplied onto the wire 25 from a slurry supply device (not shown).
- the saddle 26 is lowered in this state, the workpiece W is pressed against the wire 25.
- the workpiece W is cut into slices while having a predetermined positional relationship with the traveling direction of the wire 25.
- the measuring jig 42 is attached to the work support portion 27 via the clamp fitting 30. At this time, the position of the measurement jig 42 with respect to the workpiece support 27 is determined with high accuracy without error.
- the camera 44 detects the position of the wire 25, and the position around the vertical line of the work support portion 27 is adjusted according to the detection result. As a result, the position of the clamp fitting 30 on the work support portion 27 is set so as to satisfy a predetermined relationship with the position of the wire 25.
- the workpiece W is mounted on the workpiece support 27, the workpiece W is fixed to the workpiece jig 31 in a state where the crystal orientation of the workpiece W is adjusted in advance. Then, the workpiece jig 31 is mounted on the workpiece support 27 together with the workpiece W via the clamp fitting 30. By doing so, the exact position of the workpiece jig 31 relative to the workpiece support 27 is repeatedly reproduced. For this reason, the position of the workpiece W relative to the workpiece support 27 is determined in a state where the positional relationship between the workpiece W and the traveling direction of the wire 25 is adjusted.
- the camera 44 optically detects the position of the wire 25 and can move along the axis of the wire 25. According to this configuration, the position of the wire 25 can be correctly detected by the camera 44.
- the clamp metal fitting 30 regulates the vertical and horizontal positions of the workpiece jig 31 and the measurement jig 42, respectively.
- the workpiece jig 31 or the measurement jig 42 is simply attached to the workpiece support portion 27 via the clamp fitting 30, and the workpiece jig 31 or the measurement jig 42 is The lateral position is restricted. That is, the exact position of the work jig 31 or the measurement jig 42 mounted on the work support portion 27 can be repeatedly reproduced.
- the workpiece jig 31 or the measurement jig 42 can be quickly and appropriately clamped using the air pressure and the spring force. Therefore, the workpiece jig 31 or the measurement jig 42 can be easily attached to the workpiece support portion 27, and the setup time can be shortened.
- This embodiment may be modified as follows.
- the detecting means of the measuring jig 42 may be a reflecting mirror. Also in this case, like the camera 44, the position of the wire 25 can be confirmed from the outside of the wire saw.
- the configurations of the clamp fitting 30 and the clamped member 33 may be arbitrarily changed.
- the clamp fitting 30 and the clamped member 33 may be attracted by magnetism.
- the workpiece W is not limited to a single crystal material having a crystal orientation, but may be a polycrystalline material, and the cross-sectional shape of the workpiece W may be a square other than a cylinder.
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- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
Abstract
Description
Claims (8)
- ワイヤソーのワーク支持部に着脱される測定用治具であって、前記ワイヤソーは、一対のメインローラと、両メインローラ間に張設されるワイヤとを有し、前記ワーク支持部の位置は、上下方向に延びる軸線を中心に調節可能である測定用治具において、
前記測定用治具は、位置決め機能を有する複数のクランプ金具を介して前記ワーク支持部に着脱され、前記測定用治具には、前記ワイヤの位置を検出するための検出手段が設けられていることを特徴とする測定用治具。 - 請求項1に記載の測定用治具において
前記検出手段は、前記ワイヤの位置を光学的に検出することを特徴とする測定用治具。 - 請求項1又は2に記載の測定用治具において、
前記検出手段は、前記ワイヤの軸線に沿って移動可能であることを特徴とする測定用治具。 - ワーク支持部及びワーク用治具を備えたワイヤソーであって、前記ワーク支持部の位置は、上下方向に延びる軸線を中心に調節可能であり、前記ワーク用治具は、前記ワーク支持部に着脱されるワイヤソーにおいて、
前記ワイヤソーは、請求項1~3のうちのいずれか一項に記載の測定用治具を備え、
前記ワーク用治具も、位置決め機能を有する複数のクランプ金具を介して前記ワーク支持部に着脱されることを特徴とするワイヤソー。 - 請求項4に記載のワイヤソーにおいて、
前記クランプ金具は、前記ワーク用治具及び前記測定用治具の上下方向及び横方向の位置を規制することを特徴とするワイヤソー。 - 請求項5に記載のワイヤソーにおいて、
前記クランプ金具は、エア圧及びばね力によって、前記ワーク用治具又は前記測定用治具をクランプすることを特徴とするワイヤソー。 - ワイヤソーのワーク支持部にワークを装着する方法であって、
前記ワーク支持部に、カメラを有する測定用治具を装着する工程と、
前記カメラをワイヤの軸線方向に移動させながら前記ワイヤの位置を検出する工程と、
前記ワイヤの検出位置に基づき、前記ワーク支持部を上下方向に延びる軸線周りに回転させて前記ワーク支持部の位置を調節する工程と、
前記ワーク支持部から前記測定用治具を取り外した後、前記ワークが固定されたワーク用治具を前記ワーク支持部に装着する工程と
を備えることを特徴とするワーク装着方法。 - 請求項7に記載のワーク装着方法において、
前記ワークの結晶方位が調節された状態で、前記ワーク用治具に前記ワークを固定することを特徴とするワーク装着方法。
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CN201280001528.XA CN102958646B (zh) | 2011-03-07 | 2012-02-27 | 测量夹具、线锯、工件附装方法 |
KR1020127030336A KR101257327B1 (ko) | 2011-03-07 | 2012-02-27 | 측정을 위한 지그, 와이어 톱 및 워크피스 실장 방법 |
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JP2011049054A JP5016122B1 (ja) | 2011-03-07 | 2011-03-07 | 測定用治具、ワイヤソー、及びワーク装着方法 |
JP2011-049054 | 2011-03-07 |
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KR (1) | KR101257327B1 (ja) |
CN (1) | CN102958646B (ja) |
MY (1) | MY166688A (ja) |
TW (1) | TWI469838B (ja) |
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JP5964204B2 (ja) * | 2012-10-31 | 2016-08-03 | コマツNtc株式会社 | ワイヤソー用自動ワイヤ巻き方法およびその装置 |
JP6090624B2 (ja) * | 2013-03-29 | 2017-03-08 | パナソニックIpマネジメント株式会社 | 半導体ウエハの製造方法 |
JP7372098B2 (ja) * | 2019-09-20 | 2023-10-31 | コマツNtc株式会社 | ワイヤソー及びワイヤソーのワークの搬入出方法 |
CN112720611A (zh) * | 2021-01-15 | 2021-04-30 | 昆山竹言薄膜特殊材料有限公司 | 一种塑料薄膜生产用裁切定位装置 |
CN114043634B (zh) * | 2021-11-12 | 2024-02-20 | 中山市海晶电子有限公司 | 一种晶圆切割装夹设备 |
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JPH0666520A (ja) * | 1992-08-14 | 1994-03-08 | A T R Koudenpa Tsushin Kenkyusho:Kk | 光導波路センサ装置 |
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DE10139962C1 (de) * | 2001-08-14 | 2003-04-17 | Wacker Siltronic Halbleitermat | Verfahren zum Abtrennen von Scheiben von einem sprödharten Werkstück und Drahtsäge zur Durchführung des Verfahrens |
JP3976556B2 (ja) * | 2001-11-30 | 2007-09-19 | Dowaホールディングス株式会社 | ワイヤソー |
JP4083152B2 (ja) * | 2004-07-29 | 2008-04-30 | 日本碍子株式会社 | ワイヤーソー装置 |
KR100667690B1 (ko) * | 2004-11-23 | 2007-01-12 | 주식회사 실트론 | 웨이퍼 슬라이싱 방법 및 장치 |
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- 2012-02-27 MY MYPI2012005003A patent/MY166688A/en unknown
- 2012-02-27 KR KR1020127030336A patent/KR101257327B1/ko active IP Right Grant
- 2012-02-27 CN CN201280001528.XA patent/CN102958646B/zh active Active
- 2012-03-05 TW TW101107295A patent/TWI469838B/zh not_active IP Right Cessation
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JPH0966520A (ja) * | 1995-08-31 | 1997-03-11 | Nippei Toyama Corp | ワイヤソー装置 |
JP2003145406A (ja) * | 2001-11-08 | 2003-05-20 | Sumitomo Mitsubishi Silicon Corp | ワイヤソー |
JP2010207978A (ja) * | 2009-03-11 | 2010-09-24 | Sumitomo Metal Mining Co Ltd | 切断ワイヤーとワークとの位置決め方法、及びその方法を用いた位置決め角度検出治具付きワイヤーソー |
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CN102958646A (zh) | 2013-03-06 |
KR20120136425A (ko) | 2012-12-18 |
TWI469838B (zh) | 2015-01-21 |
JP5016122B1 (ja) | 2012-09-05 |
TW201249573A (en) | 2012-12-16 |
CN102958646B (zh) | 2015-04-15 |
KR101257327B1 (ko) | 2013-04-23 |
JP2012183615A (ja) | 2012-09-27 |
MY166688A (en) | 2018-07-18 |
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