JP6395634B2 - ウエーハの生成方法 - Google Patents
ウエーハの生成方法 Download PDFInfo
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- JP6395634B2 JP6395634B2 JP2015023578A JP2015023578A JP6395634B2 JP 6395634 B2 JP6395634 B2 JP 6395634B2 JP 2015023578 A JP2015023578 A JP 2015023578A JP 2015023578 A JP2015023578 A JP 2015023578A JP 6395634 B2 JP6395634 B2 JP 6395634B2
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- 238000000034 method Methods 0.000 title claims description 18
- 239000013078 crystal Substances 0.000 claims description 73
- 238000000926 separation method Methods 0.000 claims description 23
- 230000001681 protective effect Effects 0.000 claims description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 17
- 239000000463 material Substances 0.000 claims description 9
- 238000004519 manufacturing process Methods 0.000 claims description 8
- 235000012431 wafers Nutrition 0.000 description 54
- 239000010410 layer Substances 0.000 description 38
- 238000005520 cutting process Methods 0.000 description 7
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000001902 propagating effect Effects 0.000 description 4
- 239000002346 layers by function Substances 0.000 description 3
- 238000003754 machining Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000003672 processing method Methods 0.000 description 2
- 229910009372 YVO4 Inorganic materials 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
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Classifications
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B33/00—After-treatment of single crystals or homogeneous polycrystalline material with defined structure
- C30B33/04—After-treatment of single crystals or homogeneous polycrystalline material with defined structure using electric or magnetic fields or particle radiation
-
- 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
- B23K26/50—Working by transmitting the laser beam through or within the workpiece
- B23K26/53—Working by transmitting the laser beam through or within the workpiece for modifying or reforming the material inside the workpiece, e.g. for producing break initiation cracks
-
- 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
- B23K26/0006—Working by laser beam, e.g. welding, cutting or boring taking account of the properties of the material involved
-
- 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
- B23K26/03—Observing, e.g. monitoring, the workpiece
- B23K26/032—Observing, e.g. monitoring, the workpiece using optical means
-
- 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
- B23K26/062—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam
- B23K26/0622—Shaping the laser beam, e.g. by masks or multi-focusing by direct control of the laser beam by shaping pulses
-
- 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
- B23K26/08—Devices involving relative movement between laser beam and workpiece
-
- 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
- B23K26/08—Devices involving relative movement between laser beam and workpiece
- B23K26/083—Devices involving movement of the workpiece in at least one axial direction
- B23K26/0853—Devices involving movement of the workpiece in at least in two axial directions, e.g. in a plane
-
- 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
- B23K26/70—Auxiliary operations or equipment
- B23K26/702—Auxiliary equipment
-
- 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
- B28D5/0005—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by breaking, e.g. dicing
- B28D5/0011—Fine working of gems, jewels, crystals, e.g. of semiconductor material; apparatus or devices therefor by breaking, e.g. dicing with preliminary treatment, e.g. weakening by scoring
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/36—Electric or electronic devices
- B23K2101/40—Semiconductor 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
- B23K2103/56—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26 semiconducting
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Laser Beam Processing (AREA)
- High Energy & Nuclear Physics (AREA)
- Inorganic Chemistry (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Electromagnetism (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Description
波長 :1064nm
繰り返し周波数 :80kHz
平均出力 :3.2W
パルス幅 :4ns
スポット径 :10μm
集光レンズの開口数(NA) :0.45
インデックス量 :400μm
11,11A 六方晶単結晶インゴット
11a 第1の面(表面)
11b 第2の面(裏面)
13 第1のオリエンテーションフラット
15 第2のオリエンテーションフラット
17 第1の面の垂線
19 c軸
21 c面
23 改質層
25 クラック
26 支持テーブル
29,31 保護部材
30 レーザービーム照射ユニット
36 集光器(レーザーヘッド)
60 水槽
62 超音波装置
64 純水
Claims (3)
- 第1の面と該第1の面と反対側の第2の面と、該第1の面から該第2の面に至るc軸と、該c軸に直交するc面とを有する六方晶単結晶インゴットからウエーハを生成するウエーハの生成方法であって、
六方晶単結晶インゴットに対して透過性を有する波長のレーザービームの集光点を該第1の面から生成するウエーハの厚みに相当する深さに位置づけると共に、該集光点と該六方晶単結晶インゴットとを相対的に移動して該レーザービームを該第1の面に照射し、該第1の面に平行な改質層及び該改質層から伸長するクラックを形成して分離起点を形成する分離起点形成ステップと、
該分離起点形成ステップを実施した後、該分離起点からウエーハの厚みに相当する板状物を該六方晶単結晶インゴットから剥離して六方晶単結晶ウエーハを生成するウエーハ剥離ステップと、を備え、
該分離起点形成ステップは、該第1の面の垂線に対して該c軸がオフ角分傾き、該第1の面と該c面との間にオフ角が形成される方向と直交する方向にレーザービームの集光点を相対的に移動して直線状の改質層を形成する改質層形成ステップと、
該オフ角が形成される方向に該集光点を相対的に移動して所定量インデックスするインデックスステップと、を含み、
該ウエーハ剥離ステップでは、上面に保護部材を配設した六方晶単結晶インゴットを水中に浸漬すると共に超音波を付与して保護部材が配設された板状物を六方晶単結晶インゴットから剥離して六方晶単結晶ウエーハを生成することを特徴とするウエーハの生成方法。 - 該分離起点形成ステップにおいて、六方晶単結晶インゴットは剥離される板状物の2倍の厚みを有し、六方晶単結晶インゴットの上面と下面にそれぞれ保護部材を配設する請求項1記載のウエーハの生成方法。
- 六方晶単結晶インゴットは、SiCインゴット、又はGaNインゴットから選択される請求項1又は2記載のウエーハの生成方法。
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015023578A JP6395634B2 (ja) | 2015-02-09 | 2015-02-09 | ウエーハの生成方法 |
TW104144212A TW201639017A (zh) | 2015-02-09 | 2015-12-29 | 晶圓的生成方法 |
SG10201600557XA SG10201600557XA (en) | 2015-02-09 | 2016-01-25 | Wafer producing method |
MYPI2016700294A MY180539A (en) | 2015-02-09 | 2016-01-28 | Wafer producing method |
US15/014,367 US9481051B2 (en) | 2015-02-09 | 2016-02-03 | Wafer producing method |
KR1020160013934A KR102361279B1 (ko) | 2015-02-09 | 2016-02-04 | 웨이퍼의 생성 방법 |
CN201610079751.6A CN105862135B (zh) | 2015-02-09 | 2016-02-04 | 晶片的生成方法 |
DE102016201779.9A DE102016201779A1 (de) | 2015-02-09 | 2016-02-05 | Wafer-Herstellungsverfahren |
Applications Claiming Priority (1)
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JP2015023578A JP6395634B2 (ja) | 2015-02-09 | 2015-02-09 | ウエーハの生成方法 |
Publications (2)
Publication Number | Publication Date |
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JP2016146448A JP2016146448A (ja) | 2016-08-12 |
JP6395634B2 true JP6395634B2 (ja) | 2018-09-26 |
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US (1) | US9481051B2 (ja) |
JP (1) | JP6395634B2 (ja) |
KR (1) | KR102361279B1 (ja) |
CN (1) | CN105862135B (ja) |
DE (1) | DE102016201779A1 (ja) |
MY (1) | MY180539A (ja) |
SG (1) | SG10201600557XA (ja) |
TW (1) | TW201639017A (ja) |
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JP6002982B2 (ja) | 2011-08-31 | 2016-10-05 | 株式会社フジシール | パウチ容器 |
JP2014041925A (ja) * | 2012-08-22 | 2014-03-06 | Hamamatsu Photonics Kk | 加工対象物切断方法 |
JP2016015463A (ja) * | 2014-06-10 | 2016-01-28 | エルシード株式会社 | SiC材料の加工方法及びSiC材料 |
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CN105862135B (zh) | 2020-09-01 |
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DE102016201779A1 (de) | 2016-08-11 |
SG10201600557XA (en) | 2016-09-29 |
US20160228983A1 (en) | 2016-08-11 |
KR20160098053A (ko) | 2016-08-18 |
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CN105862135A (zh) | 2016-08-17 |
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