TW201206605A - Method and apparatus for improved wafer singulation - Google Patents
Method and apparatus for improved wafer singulation Download PDFInfo
- Publication number
- TW201206605A TW201206605A TW100111494A TW100111494A TW201206605A TW 201206605 A TW201206605 A TW 201206605A TW 100111494 A TW100111494 A TW 100111494A TW 100111494 A TW100111494 A TW 100111494A TW 201206605 A TW201206605 A TW 201206605A
- Authority
- TW
- Taiwan
- Prior art keywords
- laser
- substrate
- wafer
- lasers
- daf
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 45
- 239000000758 substrate Substances 0.000 claims abstract description 28
- 239000000463 material Substances 0.000 claims description 38
- 230000015556 catabolic process Effects 0.000 claims description 10
- 238000006731 degradation reaction Methods 0.000 claims description 10
- 238000005520 cutting process Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- 239000013078 crystal Substances 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- KJTLSVCANCCWHF-UHFFFAOYSA-N Ruthenium Chemical compound [Ru] KJTLSVCANCCWHF-UHFFFAOYSA-N 0.000 claims 1
- 238000013532 laser treatment Methods 0.000 claims 1
- 230000035515 penetration Effects 0.000 claims 1
- 229910052707 ruthenium Inorganic materials 0.000 claims 1
- 235000012431 wafers Nutrition 0.000 abstract description 154
- 239000004065 semiconductor Substances 0.000 abstract description 4
- 239000002344 surface layer Substances 0.000 description 20
- 239000010410 layer Substances 0.000 description 18
- 229910003460 diamond Inorganic materials 0.000 description 7
- 239000010432 diamond Substances 0.000 description 7
- 230000003287 optical effect Effects 0.000 description 7
- 238000000926 separation method Methods 0.000 description 6
- 230000003746 surface roughness Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 5
- 230000001427 coherent effect Effects 0.000 description 5
- 230000006378 damage Effects 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000003685 thermal hair damage Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 230000005855 radiation Effects 0.000 description 3
- 238000007493 shaping process Methods 0.000 description 3
- 239000004575 stone Substances 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 210000003298 dental enamel Anatomy 0.000 description 2
- 238000009300 dissolved air flotation Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000013467 fragmentation Methods 0.000 description 2
- 238000006062 fragmentation reaction Methods 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 238000004439 roughness measurement Methods 0.000 description 2
- 229910052715 tantalum Inorganic materials 0.000 description 2
- GUVRBAGPIYLISA-UHFFFAOYSA-N tantalum atom Chemical compound [Ta] GUVRBAGPIYLISA-UHFFFAOYSA-N 0.000 description 2
- 101100008044 Caenorhabditis elegans cut-1 gene Proteins 0.000 description 1
- 101100008635 Caenorhabditis elegans daf-12 gene Proteins 0.000 description 1
- 101100400452 Caenorhabditis elegans map-2 gene Proteins 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000009418 agronomic effect Effects 0.000 description 1
- XBJJRSFLZVLCSE-UHFFFAOYSA-N barium(2+);diborate Chemical compound [Ba+2].[Ba+2].[Ba+2].[O-]B([O-])[O-].[O-]B([O-])[O-] XBJJRSFLZVLCSE-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000000941 bile Anatomy 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000011152 fibreglass Substances 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000003698 laser cutting Methods 0.000 description 1
- VCZFPTGOQQOZGI-UHFFFAOYSA-N lithium bis(oxoboranyloxy)borinate Chemical compound [Li+].[O-]B(OB=O)OB=O VCZFPTGOQQOZGI-UHFFFAOYSA-N 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000001000 micrograph Methods 0.000 description 1
- 229910000402 monopotassium phosphate Inorganic materials 0.000 description 1
- 235000019796 monopotassium phosphate Nutrition 0.000 description 1
- HWJHZLJIIWOTGZ-UHFFFAOYSA-N n-(hydroxymethyl)acetamide Chemical compound CC(=O)NCO HWJHZLJIIWOTGZ-UHFFFAOYSA-N 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- GNSKLFRGEWLPPA-UHFFFAOYSA-M potassium dihydrogen phosphate Chemical compound [K+].OP(O)([O-])=O GNSKLFRGEWLPPA-UHFFFAOYSA-M 0.000 description 1
- LWIHDJKSTIGBAC-UHFFFAOYSA-K potassium phosphate Substances [K+].[K+].[K+].[O-]P([O-])([O-])=O LWIHDJKSTIGBAC-UHFFFAOYSA-K 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/362—Laser etching
- B23K26/364—Laser etching for making a groove or trench, e.g. for scribing a break initiation groove
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/77—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate
- H01L21/78—Manufacture or treatment of devices consisting of a plurality of solid state components or integrated circuits formed in, or on, a common substrate with subsequent division of the substrate into plural individual devices
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/02—Positioning or observing the workpiece, e.g. with respect to the point of impact; Aligning, aiming or focusing the laser beam
- B23K26/06—Shaping the laser beam, e.g. by masks or multi-focusing
- B23K26/0604—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams
- B23K26/0608—Shaping the laser beam, e.g. by masks or multi-focusing by a combination of beams in the same heat affected zone [HAZ]
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/361—Removing material for deburring or mechanical trimming
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/36—Removing material
- B23K26/40—Removing material taking account of the properties of the material involved
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/67—Apparatus specially adapted for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus specially adapted for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components ; Apparatus not specifically provided for elsewhere
- H01L21/67005—Apparatus not specifically provided for elsewhere
- H01L21/67011—Apparatus for manufacture or treatment
- H01L21/67092—Apparatus for mechanical treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/70—Manufacture or treatment of devices consisting of a plurality of solid state components formed in or on a common substrate or of parts thereof; Manufacture of integrated circuit devices or of parts thereof
- H01L21/71—Manufacture of specific parts of devices defined in group H01L21/70
- H01L21/76—Making of isolation regions between components
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/16—Composite materials, e.g. fibre reinforced
- B23K2103/166—Multilayered materials
- B23K2103/172—Multilayered materials wherein at least one of the layers is non-metallic
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Mechanical Engineering (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Laser Beam Processing (AREA)
- Dicing (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US32047610P | 2010-04-02 | 2010-04-02 | |
| US13/076,238 US20110287607A1 (en) | 2010-04-02 | 2011-03-30 | Method and apparatus for improved wafer singulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| TW201206605A true TW201206605A (en) | 2012-02-16 |
Family
ID=44712845
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| TW100111494A TW201206605A (en) | 2010-04-02 | 2011-04-01 | Method and apparatus for improved wafer singulation |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20110287607A1 (enExample) |
| EP (1) | EP2553721A2 (enExample) |
| JP (1) | JP2013524520A (enExample) |
| KR (1) | KR20130014522A (enExample) |
| CN (1) | CN102918642A (enExample) |
| TW (1) | TW201206605A (enExample) |
| WO (1) | WO2011123670A2 (enExample) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10307867B2 (en) | 2014-11-05 | 2019-06-04 | Asm Technology Singapore Pte Ltd | Laser fiber array for singulating semiconductor wafers |
Families Citing this family (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8921733B2 (en) | 2003-08-11 | 2014-12-30 | Raydiance, Inc. | Methods and systems for trimming circuits |
| JP5473414B2 (ja) * | 2009-06-10 | 2014-04-16 | 株式会社ディスコ | レーザ加工装置 |
| US20110287607A1 (en) * | 2010-04-02 | 2011-11-24 | Electro Scientific Industries, Inc. | Method and apparatus for improved wafer singulation |
| EP2409808A1 (de) * | 2010-07-22 | 2012-01-25 | Bystronic Laser AG | Laserbearbeitungsmaschine |
| WO2012021748A1 (en) | 2010-08-12 | 2012-02-16 | Raydiance, Inc. | Polymer tubing laser micromachining |
| US9120181B2 (en) * | 2010-09-16 | 2015-09-01 | Coherent, Inc. | Singulation of layered materials using selectively variable laser output |
| US8361828B1 (en) * | 2011-08-31 | 2013-01-29 | Alta Devices, Inc. | Aligned frontside backside laser dicing of semiconductor films |
| US10239160B2 (en) | 2011-09-21 | 2019-03-26 | Coherent, Inc. | Systems and processes that singulate materials |
| US9492990B2 (en) | 2011-11-08 | 2016-11-15 | Picosys Incorporated | Room temperature glass-to-glass, glass-to-plastic and glass-to-ceramic/semiconductor bonding |
| SG193711A1 (en) * | 2012-03-16 | 2013-10-30 | Advanced Laser Separation Internat Alsi N V | Method of singulating a thin semiconductor wafer |
| JP6000700B2 (ja) * | 2012-07-10 | 2016-10-05 | 株式会社ディスコ | レーザー加工方法 |
| JP5983345B2 (ja) * | 2012-11-20 | 2016-08-31 | トヨタ自動車株式会社 | 車両用ルーフのレーザロウ付け方法 |
| CN104822485B (zh) * | 2012-11-30 | 2017-08-08 | 夏伊洛工业公司 | 在金属板材件中形成焊接凹口的方法 |
| US9919380B2 (en) | 2013-02-23 | 2018-03-20 | Coherent, Inc. | Shaping of brittle materials with controlled surface and bulk properties |
| JP2015109408A (ja) * | 2013-10-22 | 2015-06-11 | マイクロン テクノロジー, インク. | 複合チップ、半導体装置、及び半導体装置の製造方法 |
| EP2883647B1 (de) | 2013-12-12 | 2019-05-29 | Bystronic Laser AG | Verfahren zur Konfiguration einer Laserbearbeitungsvorrichtung |
| DE102015212444B4 (de) * | 2015-06-12 | 2025-01-30 | Schuler Pressen Gmbh | Verfahren zur Herstellung einer Blechplatine |
| US10549386B2 (en) * | 2016-02-29 | 2020-02-04 | Xerox Corporation | Method for ablating openings in unsupported layers |
| JP6666173B2 (ja) * | 2016-03-09 | 2020-03-13 | 株式会社ディスコ | レーザー加工装置 |
| KR20170140969A (ko) * | 2016-06-14 | 2017-12-22 | (주)제이티 | 반도체칩모듈의 제조방법 |
| US10720360B2 (en) * | 2016-07-29 | 2020-07-21 | Taiwan Semiconductor Manufacturing Company, Ltd. | Semiconductor die singulation and structures formed thereby |
| US10347534B2 (en) | 2017-09-12 | 2019-07-09 | Nxp B.V. | Variable stealth laser dicing process |
| KR102158832B1 (ko) * | 2018-11-20 | 2020-09-22 | 한화정밀기계 주식회사 | 웨이퍼 절단 방법 및 절단 장치 |
| KR102174928B1 (ko) * | 2019-02-01 | 2020-11-05 | 레이저쎌 주식회사 | 멀티 빔 레이저 디본딩 장치 및 방법 |
| US20220399234A1 (en) * | 2021-06-15 | 2022-12-15 | Nxp B.V. | Semiconductor die singulation |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5552345A (en) * | 1993-09-22 | 1996-09-03 | Harris Corporation | Die separation method for silicon on diamond circuit structures |
| US6562698B2 (en) * | 1999-06-08 | 2003-05-13 | Kulicke & Soffa Investments, Inc. | Dual laser cutting of wafers |
| SG108262A1 (en) * | 2001-07-06 | 2005-01-28 | Inst Data Storage | Method and apparatus for cutting a multi-layer substrate by dual laser irradiation |
| JP2004186200A (ja) * | 2002-11-29 | 2004-07-02 | Sekisui Chem Co Ltd | 半導体チップの製造方法 |
| US7129114B2 (en) * | 2004-03-10 | 2006-10-31 | Micron Technology, Inc. | Methods relating to singulating semiconductor wafers and wafer scale assemblies |
| JP4736379B2 (ja) * | 2004-09-07 | 2011-07-27 | 日立化成工業株式会社 | 接着シート付き半導体素子の製造方法、接着シート、及びダイシングテープ一体型接着シート |
| KR100648898B1 (ko) * | 2005-08-18 | 2006-11-27 | 주식회사 젯텍 | 2개의 레이저를 이용한 웨이퍼의 분할방법 및 장치 |
| JP2007081037A (ja) * | 2005-09-13 | 2007-03-29 | Disco Abrasive Syst Ltd | デバイスおよびその製造方法 |
| US8598490B2 (en) * | 2008-03-31 | 2013-12-03 | Electro Scientific Industries, Inc. | Methods and systems for laser processing a workpiece using a plurality of tailored laser pulse shapes |
| US8383984B2 (en) * | 2010-04-02 | 2013-02-26 | Electro Scientific Industries, Inc. | Method and apparatus for laser singulation of brittle materials |
| US20110287607A1 (en) * | 2010-04-02 | 2011-11-24 | Electro Scientific Industries, Inc. | Method and apparatus for improved wafer singulation |
| KR20120043933A (ko) * | 2010-10-27 | 2012-05-07 | 삼성전자주식회사 | 반도체 장치의 제조방법 |
| US8673741B2 (en) * | 2011-06-24 | 2014-03-18 | Electro Scientific Industries, Inc | Etching a laser-cut semiconductor before dicing a die attach film (DAF) or other material layer |
-
2011
- 2011-03-30 US US13/076,238 patent/US20110287607A1/en not_active Abandoned
- 2011-03-31 WO PCT/US2011/030765 patent/WO2011123670A2/en not_active Ceased
- 2011-03-31 KR KR1020127024936A patent/KR20130014522A/ko not_active Withdrawn
- 2011-03-31 JP JP2013502856A patent/JP2013524520A/ja not_active Withdrawn
- 2011-03-31 CN CN2011800171103A patent/CN102918642A/zh active Pending
- 2011-03-31 EP EP11763451A patent/EP2553721A2/en not_active Withdrawn
- 2011-04-01 TW TW100111494A patent/TW201206605A/zh unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10307867B2 (en) | 2014-11-05 | 2019-06-04 | Asm Technology Singapore Pte Ltd | Laser fiber array for singulating semiconductor wafers |
| TWI670798B (zh) * | 2014-11-05 | 2019-09-01 | 先進科技新加坡有限公司 | 用於單切半導體晶元的鐳射纖維陣列 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20110287607A1 (en) | 2011-11-24 |
| KR20130014522A (ko) | 2013-02-07 |
| WO2011123670A3 (en) | 2012-01-12 |
| JP2013524520A (ja) | 2013-06-17 |
| EP2553721A2 (en) | 2013-02-06 |
| CN102918642A (zh) | 2013-02-06 |
| WO2011123670A2 (en) | 2011-10-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| TW201206605A (en) | Method and apparatus for improved wafer singulation | |
| JP6390898B2 (ja) | 基板の製造方法、加工対象物の切断方法、及び、レーザ加工装置 | |
| CN102844844B (zh) | 用于易碎材料的镭射单一化的改善的方法及装置 | |
| JP6496248B2 (ja) | フラット基板のレーザベースの機械加工方法および装置 | |
| CN104508800B (zh) | 加工对象物切断方法 | |
| US9099546B2 (en) | Workpiece dividing method including two laser beam application steps | |
| US10916461B2 (en) | Method of laser scribing of semiconductor workpiece using divided laser beams | |
| WO2014030518A1 (ja) | 加工対象物切断方法 | |
| US10755980B2 (en) | Laser processing method | |
| US20100184271A1 (en) | Laser processing method and chip | |
| TW201207927A (en) | Method for cutting a substrate wafer | |
| TW200932461A (en) | Working object cutting method | |
| JP2013247147A (ja) | 加工対象物切断方法、加工対象物、及び、半導体素子 | |
| TWI591702B (zh) | A method of dividing a patterned substrate | |
| TW201523696A (zh) | 用於增進自固體分離固體層的裂縫起始點或裂縫導引部的生成 | |
| CN104009129A (zh) | Led元件的制造方法、制造用晶片基材及制造装置 | |
| US12128498B2 (en) | Laser processing method, and laser processing device | |
| WO2014030517A1 (ja) | 加工対象物切断方法 | |
| JP2014090011A (ja) | Ledパターン付き基板の加工方法 | |
| JP6521695B2 (ja) | ウエーハの加工方法 | |
| JP2013118413A (ja) | Ledチップ | |
| JP2013118277A (ja) | Ledパターン付き基板の加工方法 | |
| KR20240023479A (ko) | 웨이퍼의 가공 방법 | |
| KR20130142165A (ko) | 발광 소자의 개선된 싱귤레이션 방법 및 장치 |