JP2018046208A - 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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- 238000003672 processing method Methods 0.000 title claims abstract description 77
- 229910052751 metal Inorganic materials 0.000 claims abstract description 52
- 239000002184 metal Substances 0.000 claims abstract description 52
- 239000000758 substrate Substances 0.000 claims abstract description 33
- 230000000875 corresponding Effects 0.000 claims abstract description 29
- 230000001681 protective Effects 0.000 claims abstract description 22
- 238000000227 grinding Methods 0.000 claims abstract description 13
- 230000002633 protecting Effects 0.000 claims abstract description 9
- 238000005530 etching Methods 0.000 claims abstract description 8
- 238000001020 plasma etching Methods 0.000 claims description 22
- 238000002161 passivation Methods 0.000 claims description 15
- 230000015572 biosynthetic process Effects 0.000 abstract description 6
- 238000005755 formation reaction Methods 0.000 abstract description 6
- 210000002381 Plasma Anatomy 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 21
- 239000000853 adhesive Substances 0.000 description 14
- 230000001070 adhesive Effects 0.000 description 14
- 230000004048 modification Effects 0.000 description 14
- 238000006011 modification reaction Methods 0.000 description 14
- SCKXCAADGDQQCS-UHFFFAOYSA-N performic acid Chemical compound OOC=O SCKXCAADGDQQCS-UHFFFAOYSA-N 0.000 description 11
- 230000001678 irradiating Effects 0.000 description 6
- 238000005498 polishing Methods 0.000 description 5
- 238000005247 gettering Methods 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 238000005520 cutting process Methods 0.000 description 3
- 229910052710 silicon Inorganic materials 0.000 description 3
- 239000010703 silicon Substances 0.000 description 3
- 238000009623 Bosch process Methods 0.000 description 2
- 239000004820 Pressure-sensitive adhesive Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 description 1
- 210000002304 ESC Anatomy 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- 101700015583 SOT15 Proteins 0.000 description 1
- 101700015191 SOT5 Proteins 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 229910004298 SiO 2 Inorganic materials 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N Silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- 238000002679 ablation Methods 0.000 description 1
- 238000004380 ashing Methods 0.000 description 1
- 125000004429 atoms Chemical group 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000004088 foaming agent Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000003094 microcapsule Substances 0.000 description 1
- 230000003287 optical Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- MYMOFIZGZYHOMD-UHFFFAOYSA-N oxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 229910052594 sapphire Inorganic materials 0.000 description 1
- 239000010980 sapphire Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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- 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
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- H01L21/30—Treatment of semiconductor bodies using processes or apparatus not provided for in groups H01L21/20 - H01L21/26
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- H01L21/18—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising elements of Group IV of the Periodic System 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
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- H01L21/3205—Deposition of non-insulating-, e.g. conductive- or resistive-, layers on insulating layers; After-treatment of these layers
- H01L21/321—After treatment
- H01L21/3213—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer
- H01L21/32133—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only
- H01L21/32135—Physical or chemical etching of the layers, e.g. to produce a patterned layer from a pre-deposited extensive layer by chemical means only by vapour etching only
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- 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
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- 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
Abstract
【解決手段】ウエーハの加工方法は、ウエーハの表面側のデバイスに対応する部分にマスクを形成するマスク形成工程ST1と、ウエーハの表面側からマスクを介してプラズマエッチングを施し、金属部材に対応する領域以外のストリート領域をエッチングし仕上り厚さに対応する深さの溝を形成する溝形成工程ST2と、ウエーハの表面に表面を保護する保護部材を貼着する貼着工程ST3と、保護部材を介して、ウエーハの表面側を保持し、ウエーハの裏面側を研削して溝の底部を露出させてウエーハを個片化する個片化工程ST4と、金属部材に対応する基板の残存部を残して、複数のデバイスをピックアップするピックアップ工程ST5と、を含む。
【選択図】図3
Description
実施形態1に係るウエーハの加工方法を図面を参照して説明する。図1は、実施形態1に係るウエーハの加工方法の加工対象のウエーハを示す斜視図である。図2は、図1中のII−II線に沿う断面図である。
実施形態2に係るウエーハの加工方法を図面を参照して説明する。図10は、実施形態2に係るウエーハの加工方法の加工対象のウエーハの要部の断面図である。図11は、実施形態2に係るウエーハの加工方法の流れを示すフローチャートである。図12は、図11に示されたウエーハの加工方法の溝形成工程を示すウエーハの要部の断面図である。図13は、図11に示されたウエーハの加工方法の貼着工程を示すウエーハの要部の断面図である。図10から図13は、実施形態1と同一部分に同一符号を付して説明を省略する。
て、ウエーハW−2をデバイスD−2に分割(個片化ともいう)する方法である。
基板の表面側を格子状のストリートで区画した複数の領域にデバイスが形成され、該ストリートと重なる領域に金属部材が形成されたウエーハを該ストリートに沿って分割するウエーハの加工方法であって、
表面側からプラズマエッチングが施されて該金属部材に対応する領域以外の該ストリート領域がエッチングされ仕上り厚さに対応する深さの溝が形成された該ウエーハの表面側を保持し、該ウエーハの裏面側を研削して該溝の底部を露出させて該ウエーハを個片化する個片化工程と、
該金属部材に対応する基板の残存部を残して、該複数のデバイスをピックアップするピックアップ工程と、を含むウエーハの加工方法。
各実施形態の変形例に係るウエーハの加工方法を図面を参照して説明する。図14は、各実施形態の変形例に係るウエーハの加工方法のピックアップ工程前のウエーハの要部の断面図である。図15は、各実施形態の変形例に係るウエーハの加工方法のピックアップ工程を示すウエーハの要部の断面図である。図14及び図15は、実施形態1及び実施形態2と同一部分に同一符号を付して説明を省略する。なお、図14及び図15は、実施形態2の変形例を記載しておりますが、変形例は、実施形態1にも適用することができる。
WS 表面
WR 裏面
L ストリート
S 基板
SS 表面
D,D−2 デバイス
DT 溝
BGT BGテープ(保護部材)
MC,MCA 金属部材
MS マスク
PFA パッシベーション膜
RM 残存部
T 仕上り厚さ
DP 深さ
ST1 マスク形成工程
ST2,ST2A 溝形成工程
ST3,ST3A 貼着工程
ST4 個片化工程
ST5 ピックアップ工程
Claims (2)
- 基板の表面側を格子状のストリートで区画した複数の領域にデバイスが形成され、該ストリートと重なる領域に金属部材が形成されたウエーハを該ストリートに沿って分割するウエーハの加工方法であって、
該ウエーハの表面側の該デバイスに対応する部分にマスクを形成するマスク形成工程と、
該ウエーハの表面側から該マスクを介してプラズマエッチングを施し、該金属部材に対応する領域以外の該ストリート領域をエッチングし仕上り厚さに対応する深さの溝を形成する溝形成工程と、
該ウエーハの表面に該表面を保護する保護部材を貼着する貼着工程と、
該保護部材を介して、該ウエーハの表面側を保持し、該ウエーハの裏面側を研削して該溝の底部を露出させて該ウエーハを個片化する個片化工程と、
該金属部材に対応する基板の残存部を残して、該複数のデバイスをピックアップするピックアップ工程と、を含むウエーハの加工方法。 - 基板の表面側を格子状のストリートで区画した複数の領域に積層されたパッシベーション膜を含むデバイスが形成され、該ストリートと重なる領域に金属部材が形成されたウエーハを該ストリートに沿って分割するウエーハの加工方法であって、
該ウエーハの表面側から該パッシベーション膜をマスクとしてプラズマエッチングを施し、該金属部材に対応する領域以外の該ストリート領域をエッチングし仕上り厚さに対応する深さの溝を形成する溝形成工程と、
該ウエーハの表面に該表面を保護する保護部材を貼着する貼着工程と、
該保護部材を介して該ウエーハの表面側を保持し、該ウエーハの裏面側を研削して該溝の底部を露出させて該ウエーハを個片化する個片化工程と、
該金属部材に対応する基板の残存部を残して、該複数のデバイスをピックアップするピックアップ工程と、を含むウエーハの加工方法。
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JP6887722B2 (ja) * | 2016-10-25 | 2021-06-16 | 株式会社ディスコ | ウェーハの加工方法及び切削装置 |
JP6899252B2 (ja) * | 2017-05-10 | 2021-07-07 | 株式会社ディスコ | 加工方法 |
US10515853B1 (en) * | 2018-12-10 | 2019-12-24 | Winbond Electronics Corp. | Method of wafer dicing |
KR20210050143A (ko) | 2019-10-28 | 2021-05-07 | 삼성전자주식회사 | 반도체 소자 및 제조방법 |
CN111463138B (zh) * | 2020-04-20 | 2021-05-18 | 长江存储科技有限责任公司 | 半导体器件及其制备方法 |
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