JP5357669B2 - ウエーハの加工方法 - Google Patents
ウエーハの加工方法 Download PDFInfo
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- JP5357669B2 JP5357669B2 JP2009197943A JP2009197943A JP5357669B2 JP 5357669 B2 JP5357669 B2 JP 5357669B2 JP 2009197943 A JP2009197943 A JP 2009197943A JP 2009197943 A JP2009197943 A JP 2009197943A JP 5357669 B2 JP5357669 B2 JP 5357669B2
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- 238000003672 processing method Methods 0.000 title claims description 11
- 230000003014 reinforcing effect Effects 0.000 claims description 53
- 239000002390 adhesive tape Substances 0.000 claims description 34
- 230000001681 protective effect Effects 0.000 claims description 32
- 238000000034 method Methods 0.000 claims description 23
- 230000002093 peripheral effect Effects 0.000 claims description 14
- 230000001678 irradiating effect Effects 0.000 claims description 5
- 238000003825 pressing Methods 0.000 claims description 5
- 230000002787 reinforcement Effects 0.000 claims description 4
- 238000005096 rolling process Methods 0.000 claims description 3
- 239000004820 Pressure-sensitive adhesive Substances 0.000 claims 1
- 235000012431 wafers Nutrition 0.000 description 135
- 239000004065 semiconductor Substances 0.000 description 48
- 230000008569 process Effects 0.000 description 16
- 238000003384 imaging method Methods 0.000 description 6
- 230000007246 mechanism Effects 0.000 description 5
- 239000000853 adhesive Substances 0.000 description 4
- 230000001070 adhesive effect Effects 0.000 description 4
- 238000001514 detection method Methods 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 238000009281 ultraviolet germicidal irradiation Methods 0.000 description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 238000003331 infrared imaging Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000003287 optical effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 229910009372 YVO4 Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- 230000000638 stimulation Effects 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Images
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
- 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
- B24B1/00—Processes of grinding or polishing; Use of auxiliary equipment in connection with such processes
-
- 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
- B24B7/00—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor
- B24B7/20—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground
- B24B7/22—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain
- B24B7/228—Machines or devices designed for grinding plane surfaces on work, including polishing plane glass surfaces; Accessories therefor characterised by a special design with respect to properties of the material of non-metallic articles to be ground for grinding inorganic material, e.g. stone, ceramics, porcelain for grinding thin, brittle parts, e.g. semiconductors, wafers
-
- 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
-
- 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
- B23K2103/00—Materials to be soldered, welded or cut
- B23K2103/50—Inorganic material, e.g. metals, not provided for in B23K2103/02 – B23K2103/26
-
- 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
- H01L21/67132—Apparatus for placing on an insulating substrate, e.g. tape
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Optics & Photonics (AREA)
- Plasma & Fusion (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- General Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Dicing (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
- Laser Beam Processing (AREA)
Description
波長 :1064nm
繰り返し周波数 :100kHz
パルス出力 :10μJ
集光スポット径 :φ1μm
加工送り速度 :100mm/秒
波長 :355nm(YAGレーザの第3高調波)
繰り返し周波数 :50kHz
平均出力 :3W
集光スポット径 :φ5μm
加工送り速度 :200mm/秒
10 研削ユニット
11 半導体ウエーハ
17 デバイス領域
19 外周余剰領域
22 研削ホイール
23 保護テープ
36 チャックテーブル
44 円形凹部
46 環状補強部
52 レーザ加工装置
84 レーザビーム照射ユニット
86 集光器(レーザヘッド)
88 撮像手段
116 改質層
118 環状改質層
120 分割溝
122 チャックテーブル
126 円柱凸部
134 環状フレーム
136 粘着テープ
138 ローラー
140 分割装置
142 フレーム保持手段
144 テープ拡張手段
150 拡張ドラム
Claims (5)
- 複数のデバイスが分割予定ラインによって区画されたデバイス領域と、該デバイス領域を囲繞する外周余剰領域とを表面に有するウエーハの加工方法であって、
該デバイスが形成されたウエーハの表面に保護テープを貼着し、
該保護テープが貼着されたウエーハの該保護テープ側を第1チャックテーブルで吸引保持しながら、該デバイス領域に対応するウエーハの裏面を所定の厚みに研削して円形凹部を形成するとともに、該円形凹部の外周に該外周余剰領域を含む環状補強部を形成し、
該ウエーハの裏面側からウエーハに対して透過性を有する波長のレーザビームを該分割予定ラインに沿って照射して、ウエーハ内部に該分割予定ラインに沿った改質層を形成し、
該ウエーハの裏面側から前記レーザビームを照射して、該円形凹部と該環状補強部との境界部分のウエーハ内部に環状改質層を形成し、
該円形凹部の直径よりも小さい直径の円柱凸部を有する第2チャックテーブルの該円柱凸部上に該ウエーハの保護テープ側を載置して、該第2チャックテーブルで該ウエーハを吸引保持し、
該ウエーハの直径より大きい直径の開口部を有する環状フレームの該開口部を塞ぐように該環状フレームに装着された粘着テープを該ウエーハの該環状補強部上に載置し、
該ウエーハの直径より長いローラーを、該ウエーハに対して下方に押圧しつつ該粘着テープの裏面上を転動させて、該環状補強部を押し下げて該円形凹部と該環状補強部を該環状改質層に沿って分離するとともに、該円形凹部の底面及び該環状補強部に該粘着テープを貼着し、
該保護テープを該ウエーハから剥離し、
該環状補強部を該粘着テープから除去する、
各ステップを具備したウエーハの加工方法。 - 該環状補強部を該粘着テープから除去した後、該ウエーハを該分割予定ラインに沿って形成された該改質層に沿って個々のデバイスに割断するステップを更に具備した請求項1記載のウエーハの加工方法。
- 複数のデバイスが分割予定ラインによって区画されたデバイス領域と、該デバイス領域を囲繞する外周余剰領域とを表面に有するウエーハの加工方法であって、
該デバイスが形成されたウエーハの表面に保護テープを貼着し、
該保護テープが貼着されたウエーハの該保護テープ側を第1チャックテーブルで吸引保持しながら、該デバイス領域に対応するウエーハの裏面を所定の厚みに研削して円形凹部を形成するとともに、該円形凹部の外周に該外周余剰領域を含む環状補強部を形成し、
該ウエーハの裏面側からウエーハに対して吸収性を有する波長のレーザビームを該分割予定ラインに沿って照射して、該ウエーハの裏面に該分割予定ラインに沿った分割溝を形成し、
該ウエーハの裏面側から前記レーザビームを照射して、該円形凹部と該環状補強部との境界部分のウエーハの裏面に環状分割溝を形成し、
該円形凹部の直径よりも小さい直径の円柱凸部を有する第2チャックテーブルの該円柱凸部上に該ウエーハの保護テープ側を載置して、該第2チャックテーブルで該ウエーハを吸引保持し、
該ウエーハの直径より大きい直径の開口部を有する環状フレームの該開口部を塞ぐように該環状フレームに装着された粘着テープを該ウエーハの該環状補強部上に載置し、
該ウエーハの直径より長いローラーを、該ウエーハに対して下方に押圧しつつ該粘着テープの裏面上を転動させて、該環状補強部を押し下げて該円形凹部と該環状補強部を該環状分割溝に沿って分離するとともに、該円形凹部の底面及び該環状補強部に該粘着テープを貼着し、
該保護テープを該ウエーハから剥離し、
該環状補強部を該粘着テープから除去する、
各ステップを具備したウエーハの加工方法。 - 該環状補強部を該粘着テープから除去した後、該ウエーハを該分割予定ラインに沿って形成された該分割溝に沿って個々のデバイスに割断するステップを更に具備した請求項3記載のウエーハの加工方法。
- 前記第2チャックテーブルの該円柱凸部は該円形凹部の直径より1〜10mm小さい直径を有し、該円柱凸部の高さは該環状補強部の厚さ+0〜0.2mmである請求項1〜4の何れかに記載のウエーハの加工方法。
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JP2009197943A JP5357669B2 (ja) | 2009-08-28 | 2009-08-28 | ウエーハの加工方法 |
DE102010039798.9A DE102010039798B4 (de) | 2009-08-28 | 2010-08-26 | Waferbearbeitungsverfahren |
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JP2009197943A JP5357669B2 (ja) | 2009-08-28 | 2009-08-28 | ウエーハの加工方法 |
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JP5357669B2 true JP5357669B2 (ja) | 2013-12-04 |
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JP5964580B2 (ja) * | 2011-12-26 | 2016-08-03 | 株式会社ディスコ | ウェーハの加工方法 |
JP6004705B2 (ja) * | 2012-04-02 | 2016-10-12 | 株式会社ディスコ | 接着フィルム付きチップの形成方法 |
JP5985880B2 (ja) * | 2012-05-08 | 2016-09-06 | 株式会社ディスコ | ウエーハの分割方法 |
EP2824697A1 (de) * | 2013-07-10 | 2015-01-14 | Mechatronic Systemtechnik GmbH | Vorrichtung zum Entfernen eines ringförmigen Verstärkungsrands von einem geschliffenen Halbleiterwafer |
JP6341709B2 (ja) * | 2014-03-18 | 2018-06-13 | 株式会社ディスコ | ウェーハの加工方法 |
JP6692577B2 (ja) * | 2016-06-24 | 2020-05-13 | 株式会社ディスコ | ウェーハの加工方法 |
JP2020061495A (ja) * | 2018-10-11 | 2020-04-16 | 株式会社ディスコ | ウェーハの加工方法 |
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JPH04143623A (ja) | 1990-10-04 | 1992-05-18 | Mitsubishi Heavy Ind Ltd | 光ビーム径計測方法 |
JP4684697B2 (ja) * | 2005-03-22 | 2011-05-18 | 株式会社ディスコ | ウエーハ破断方法 |
JP5390740B2 (ja) | 2005-04-27 | 2014-01-15 | 株式会社ディスコ | ウェーハの加工方法 |
JP4741331B2 (ja) * | 2005-09-29 | 2011-08-03 | 株式会社ディスコ | ウエーハの加工方法 |
JP5065637B2 (ja) * | 2006-08-23 | 2012-11-07 | 株式会社ディスコ | ウエーハの加工方法 |
JP2008283025A (ja) * | 2007-05-11 | 2008-11-20 | Disco Abrasive Syst Ltd | ウエーハの分割方法 |
JP5138325B2 (ja) * | 2007-09-27 | 2013-02-06 | 株式会社ディスコ | ウェーハの加工方法 |
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JP2011049431A (ja) | 2011-03-10 |
DE102010039798B4 (de) | 2021-03-18 |
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