JP7319017B2 - ウェハの処理方法 - Google Patents
ウェハの処理方法 Download PDFInfo
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- JP7319017B2 JP7319017B2 JP2021106501A JP2021106501A JP7319017B2 JP 7319017 B2 JP7319017 B2 JP 7319017B2 JP 2021106501 A JP2021106501 A JP 2021106501A JP 2021106501 A JP2021106501 A JP 2021106501A JP 7319017 B2 JP7319017 B2 JP 7319017B2
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- RPQDHPTXJYYUPQ-UHFFFAOYSA-N indium arsenide Chemical compound [In]#[As] RPQDHPTXJYYUPQ-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- 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
-
- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the subgroups H01L21/06 - H01L21/326, e.g. sealing of a cap to a base of a container
- H01L21/56—Encapsulations, e.g. encapsulation layers, coatings
-
- 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
- B23K10/00—Welding or cutting by means of a plasma
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- 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
- B23K26/18—Working by laser beam, e.g. welding, cutting or boring using absorbing layers on the workpiece, e.g. for marking or protecting purposes
-
- 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
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- 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
- B23K26/38—Removing material by boring or cutting
-
- 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
- B23K26/36—Removing material
- B23K26/40—Removing material taking account of the properties of the material involved
- B23K26/402—Removing material taking account of the properties of the material involved involving non-metallic material, e.g. isolators
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- 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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/04—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work
- B23K37/0408—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups for holding or positioning work for planar work
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- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/02002—Preparing wafers
- H01L21/02005—Preparing bulk and homogeneous wafers
- H01L21/02008—Multistep processes
- H01L21/0201—Specific process step
- H01L21/02013—Grinding, lapping
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- H—ELECTRICITY
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- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/302—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26 to change their surface-physical characteristics or shape, e.g. etching, polishing, cutting
- H01L21/304—Mechanical treatment, e.g. grinding, polishing, cutting
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- 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
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic Table or AIIIBV compounds with or without impurities, e.g. doping materials
- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
- H01L21/324—Thermal treatment for modifying the properties of semiconductor bodies, e.g. annealing, sintering
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- 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
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- 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
- H01L21/683—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 for supporting or gripping
- H01L21/6835—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 for supporting or gripping using temporarily an auxiliary support
- H01L21/6836—Wafer tapes, e.g. grinding or dicing support tapes
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- 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
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- 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
- B23K2103/52—Ceramics
-
- 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
- B23K2103/54—Glass
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2221/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof covered by H01L21/00
- H01L2221/67—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere
- H01L2221/683—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L2221/68304—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support
- H01L2221/68327—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support used during dicing or grinding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2221/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof covered by H01L21/00
- H01L2221/67—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere
- H01L2221/683—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L2221/68304—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support
- H01L2221/68327—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support used during dicing or grinding
- H01L2221/68331—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support used during dicing or grinding of passive members, e.g. die mounting substrate
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2221/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof covered by H01L21/00
- H01L2221/67—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere
- H01L2221/683—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping
- H01L2221/68304—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support
- H01L2221/6834—Apparatus for handling semiconductor or electric solid state devices during manufacture or treatment thereof; Apparatus for handling wafers during manufacture or treatment of semiconductor or electric solid state devices or components; Apparatus not specifically provided for elsewhere for supporting or gripping using temporarily an auxiliary support used to protect an active side of a device or wafer
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Power Engineering (AREA)
- Optics & Photonics (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Mechanical Treatment Of Semiconductor (AREA)
- Dicing (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Description
Claims (10)
- 複数のデバイス(27)を備えたデバイス領域(2)を一面(1)に有するウェハ(W)を処理する方法において、
保護フィルム(4)を準備するステップと、
前記保護フィルム(4)を、前記ウェハ(W)の前記一面(1)または前記一面(1)に対して反対側にある前記ウェハ(W)の面(6)に加えるステップであって、前記保護フィルム(4)の表の面(4a)の少なくとも中央領域は、前記ウェハ(W)の前記一面(1)または前記一面(1)に対して反対側にある前記ウェハ(W)の前記面(6)と直接接触し、前記保護フィルムの前記表の面(4a)の前記中央領域と前記ウェハ(W)の前記一面(1)または前記一面に対して反対側にある前記ウェハ(W)の前記面(6)との間には接着材が存在しない、前記ステップと、
前記保護フィルム(4)を、前記ウェハ(W)の前記一面(1)または前記一面(1)に対して反対側にある前記ウェハ(W)の前記面(6)に付けるステップであって、前記保護フィルム(4)の周辺部分の少なくとも一部は、前記ウェハ(W)の全周に沿って、前記ウェハ(W)の側方縁部(5)の少なくとも一部に付けられ、前記ウェハ(W)の前記側方縁部(5)は、前記ウェハ(W)の前記一面(1)から、前記一面(1)に対して反対側にある前記ウェハ(W)の前記面(6)まで延びる、前記ステップと、
前記ウェハ(W)の前記一面(1)および/または前記一面(1)に対して反対側にある前記ウェハ(W)の前記面(6)を処理するステップと、
を含み、
前記保護フィルム(4)を、前記ウェハ(W)の前記一面(1)または前記一面(1)に対して反対側にある前記ウェハ(W)の前記面(6)に付けるステップは、前記保護フィルム(4)を、前記ウェハ(W)の前記一面(1)または前記一面(1)に対して反対側にある前記ウェハ(W)の前記面(6)に加える間および/または加えた後、前記保護フィルム(4)に外部刺激を加える工程を含み、
前記保護フィルム(4)に外部刺激を加える工程は、前記保護フィルム(4)の前記表の面(4a)の前記中央領域および前記ウェハ(W)の間に付ける力を発生させ、
前記保護フィルム(4)の周辺部分の少なくとも一部は、前記ウェハ(W)の厚さの少なくとも一部に沿って、前記ウェハの全周に沿って、前記ウェハ(W)の側方縁部(5)の少なくとも一部に付けられ、
前記保護フィルム(4)は、拡張可能であり、前記保護フィルム(4)は、前記ウェハ(W)の前記一面(1)又は前記一面(1)に対して反対側にある前記ウェハの前記面(6)に加えられるときに拡張される、方法。 - 複数のデバイス(27)を備えたデバイス領域(2)を一面(1)に有するウェハ(W)を処理する方法において、
保護フィルム(4)を準備するステップと、
前記保護フィルム(4)を、前記ウェハ(W)の前記一面(1)または前記一面(1)に対して反対側にある前記ウェハ(W)の面(6)に加えるステップであって、前記保護フィルム(4)の表の面(4a)の少なくとも中央領域は、前記ウェハ(W)の前記一面(1)または前記一面(1)に対して反対側にある前記ウェハ(W)の前記面(6)と直接接触する、前記ステップと、
前記保護フィルム(4)を、前記ウェハ(W)の前記一面(1)または前記一面(1)に対して反対側にある前記ウェハ(W)の前記面(6)に付けるステップであって、前記保護フィルム(4)の周辺部分の少なくとも一部は、前記ウェハ(W)の全周に沿って、前記ウェハ(W)の側方縁部(5)の少なくとも一部に付けられ、前記ウェハ(W)の前記側方縁部(5)は、前記ウェハ(W)の前記一面(1)から、前記一面(1)に対して反対側にある前記ウェハ(W)の前記面(6)まで延びる、前記ステップと、
前記ウェハ(W)の前記一面(1)および/または前記一面(1)に対して反対側にある前記ウェハ(W)の前記面(6)を処理するステップと、
を含み、
前記保護フィルム(4)を、前記ウェハ(W)の前記一面(1)または前記一面(1)に対して反対側にある前記ウェハ(W)の前記面(6)に付けるステップは、前記保護フィルム(4)を、前記ウェハ(W)の前記一面(1)または前記一面(1)に対して反対側にある前記ウェハ(W)の前記面(6)に加える間および/または加えた後、前記保護フィルム(4)に外部刺激を加える工程を含み、
前記保護フィルム(4)に外部刺激を加える工程は、前記保護フィルム(4)の前記表の面(4a)の前記中央領域および前記ウェハ(W)の間に付ける力を発生させ、前記保護フィルム(4)の周辺部分の少なくとも一部は、前記ウェハ(W)の厚さの少なくとも一部に沿って、前記ウェハの全周に沿って、前記ウェハ(W)の側方縁部(5)の少なくとも一部に付けられ、
前記保護フィルム(4)には、接着層(9)が設けられ、前記接着層(9)は、前記保護フィルム(4)の前記表の面(4a)の周辺領域だけに設けられ、前記周辺領域は、前記保護フィルム(4)の前記表の面(4a)の前記中央領域を囲み、前記保護フィルム(4)は、前記ウェハ(W)の前記一面(1)または前記一面(1)に対して反対側にある前記ウェハ(W)の前記面(6)に加えられ、前記接着層(9)は、前記ウェハ(W)の前記一面(1)の周辺部分または前記一面(1)に対して反対側にある前記ウェハ(W)の前記面(6)の周辺部分のみと、さらに/または前記ウェハ(W)の前記側方縁部(5)の少なくとも一部のみと接触するようになる、方法。 - 前記保護フィルム(4)に前記外部刺激を加える工程は、前記保護フィルム(4)の加熱および/または前記保護フィルム(4)の冷却および/または前記保護フィルム(4)に真空を加えることおよび/または光で前記保護フィルム(4)を照射することを含む、請求項1に記載の方法。
- 前記保護フィルム(4)には、接着層(9)が設けられ、
前記接着層(9)は、前記保護フィルム(4)の前記表の面(4a)の周辺領域だけに設けられ、前記周辺領域は、前記保護フィルム(4)の前記表の面(4a)の前記中央領域を囲み、
前記保護フィルム(4)は、前記ウェハ(W)の前記一面(1)または前記一面(1)に対して反対側にある前記ウェハ(W)の前記面(6)に加えられ、前記接着層(9)は、前記ウェハ(W)の前記一面(1)の周辺部分または前記一面(1)に対して反対側にある前記ウェハ(W)の前記面(6)の周辺部分のみと、さらに/または前記ウェハ(W)の前記側方縁部(5)の少なくとも一部のみと接触するようになる、請求項1又は3に記載の方法。 - 前記接着層(9)は、実質的に環状形状、開いた矩形の形状または開いた正方形の形状を有する、請求項4に記載の方法。
- 少なくとも一つの分割ライン(11)が前記ウェハ(W)の前記一面(1)に形成され、
前記方法は、前記保護フィルム(4)を前記ウェハ(W)の前記一面(1)または前記一面(1)に対して反対側にある前記ウェハ(W)の前記面(6)に加える前に、前記ウェハ(W)の前記一面(1)から、前記少なくとも一つの分割ライン(11)に沿って、ウェハ材料を除去するステップを含み、
前記ウェハ材料は、前記ウェハ(W)の厚さの一部だけに沿って除去される、前記ステップを含む、請求項1~5のいずれか一項に記載の方法。 - 前記保護フィルム(4)は、前記ウェハ(W)の前記一面(1)に加えられて付けられ、
前記方法は、前記一面(1)に対して反対側にある前記ウェハ(W)の前記面(6)を処理するステップを含み、
前記一面(1)に対して反対側にある前記ウェハ(W)の前記面(6)を処理するステップは、前記ウェハの厚さを調整するように、前記一面(1)に対して反対側にある前記ウェハ(W)の前記面(6)を研削する工程を含み、
前記一面(1)に対して反対側にある前記ウェハ(W)の前記面(6)を研削する工程は、前記少なくとも一つの分割ライン(11)に沿って、前記ウェハ(W)を分割するように、ウェハ材料が除去されなかった前記ウェハ(W)の前記厚さの残部に沿って行われる、請求項6に記載の方法。 - クッション層(13)が、前記保護フィルム(4)の表の面(4a)に対して反対側の前記保護フィルム(4)の裏の面に付けられる、請求項1~7のいずれか一項に記載の方法。
- ベースシート(7)が、前記クッション層(13)の裏の面に付けられる、請求項8に記載の方法。
- 前記保護フィルム(4)が、高分子、特に、ポリオレフィンで形成される、請求項1~9のいずれか一項に記載の方法。
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