JP7345304B2 - ウェーハの加工方法 - Google Patents
ウェーハの加工方法 Download PDFInfo
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- JP7345304B2 JP7345304B2 JP2019135257A JP2019135257A JP7345304B2 JP 7345304 B2 JP7345304 B2 JP 7345304B2 JP 2019135257 A JP2019135257 A JP 2019135257A JP 2019135257 A JP2019135257 A JP 2019135257A JP 7345304 B2 JP7345304 B2 JP 7345304B2
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- 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
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- 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
- H01L21/306—Chemical or electrical treatment, e.g. electrolytic etching
- H01L21/3065—Plasma etching; Reactive-ion etching
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- H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
- H01J37/32—Gas-filled discharge tubes
- H01J37/32009—Arrangements for generation of plasma specially adapted for examination or treatment of objects, e.g. plasma sources
- H01J37/32366—Localised processing
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- H01L21/02041—Cleaning
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- H01L21/68714—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 mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
- H01L21/68721—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 mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by edge clamping, e.g. clamping ring
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- H—ELECTRICITY
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- 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
- H01L21/687—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 mechanical means, e.g. chucks, clamps or pinches
- H01L21/68714—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 mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support
- H01L21/68735—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 mechanical means, e.g. chucks, clamps or pinches the wafers being placed on a susceptor, stage or support characterised by edge profile or support profile
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J2237/00—Discharge tubes exposing object to beam, e.g. for analysis treatment, etching, imaging
- H01J2237/32—Processing objects by plasma generation
- H01J2237/33—Processing objects by plasma generation characterised by the type of processing
- H01J2237/334—Etching
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- 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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- Engineering & Computer Science (AREA)
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- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Power Engineering (AREA)
- Plasma & Fusion (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Drying Of Semiconductors (AREA)
- Dicing (AREA)
- Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
Description
本発明の実施形態に係るウェーハの加工方法を図面に基づいて説明する。図1は、実施形態に係るフレームユニットの一例を示す斜視図である。図2は、実施形態に係るウェーハの加工方法の流れを示すフローチャートである。
マスク層被覆ステップST2は、ウェーハ11の表面111をマスク層26で被覆するステップである。図3は、実施形態に係るウェーハの加工方法のウェーハにマスク層を被覆するマスク層被覆ステップの状態を示す側面図である。マスク層26の被覆は、スピンコーター2を用いて行う。なお、マスク層26は被覆層とも称せられる。スピンコーター2は、スピンナテーブル(保持テーブル)21と、回転軸部22と、クランプ装置23と、ノズル24と、を備える。
分割予定ライン加工ステップST3は、ウェーハ11の分割予定ライン上のマスク層26に加工溝を形成するステップである。図4は、実施形態に係るウェーハの加工方法のウェーハ上のマスク層に加工溝を加工する分割予定ライン加工ステップの状態を示す側面図である。分割予定ライン14は、ウェーハ11の表面111を加工した加工溝36であり、分割予定ライン加工ステップは、例えば、図4に示すレーザー加工装置3を用いて行われる。
図5は、実施形態に係るウェーハの加工方法のウェーハにプラズマエッチングを実施するプラズマエッチングステップで用いるプラズマエッチング装置を示す断面図である。図6は、図5で示したエッチングチャンバー内の静電チャックテーブル及びカバー部材の斜視図である。図7は、図6に示された静電チャックテーブル上でかつカバー部材内にフレームユニットを搬入した状態の断面図である。図8は、実施形態に係るウェーハの加工方法のフレームユニット保持ステップ及び遮蔽ステップの静電チャックテーブルとカバー部材とを示す断面図である。
図9は、実施形態に係るウェーハの加工方法のドライエッチングの静電チャックテーブル及びカバー部材を示す断面図である。ドライエッチングステップST6は、フレームユニット保持ステップST4及び遮蔽ステップST5実施後、エッチングチャンバー41にガス45を供給し、ウェーハ11をドライエッチングするステップである。ドライエッチングステップST6においては、遮蔽ステップST5で環状フレーム12と粘着テープ13の環状領域131とをカバー部材5で覆ったまま、図5に示すように、ガス供給管43からプラズマ処理室411の内部にプラズマ状態のガス45を流入する。プラズマ状態のガス45によって、ウェーハ11にドライエッチングを施す。ここで、環状フレーム12と粘着テープ13の環状領域131とはカバー部材5で遮蔽されているため、環状フレーム12及び粘着テープ13の環状領域131は、ドライエッチングが施されることが抑制される。なお、ドライエッチングには、例えば、プラズマエッチングと、反応ガス中に材料を曝すガスエッチングとが含まれる。また、実施形態におけるドライエッチングの目的は、分割予定ライン加工ステップST3におけるレーザー加工で発生したデブリや熱影響層(ダメージ層)を除去することで抗折強度を向上させることであるが、本発明は、これに限定されずに、ウェーハ11を分割予定ライン14に沿って矩形チップに分断する加工にもドライエッチングを適用することが可能である。
5 カバー部材
6 静電チャックテーブル(チャックテーブル)
11 ウェーハ
12 環状フレーム
13 粘着テープ
131 環状領域
41 エッチングチャンバー
45 ガス
ST1 フレームユニット準備ステップ
ST4 フレームユニット保持ステップ
ST5 遮蔽ステップ
ST6 ドライエッチングステップ
Claims (3)
- ウェーハを環状フレームの開口に粘着テープで固定し、フレームユニットを準備するフレームユニット準備ステップと、
エッチングチャンバー内のチャックテーブルで、該フレームユニットのウェーハを該粘着テープを介して吸引保持するフレームユニット保持ステップと、
該環状フレーム及び/又は該環状フレームと該ウェーハとの間で露出する該粘着テープの環状領域をカバー部材で覆い、外部から密閉された密閉空間の内部に該環状フレームと該粘着テープの該環状領域とが収納されて、外部空間から遮蔽し、不活性ガスを該密閉空間の内部に流入させることにより、該密閉空間の内部を陽圧にする遮蔽ステップと、
該フレームユニット保持ステップ及び該遮蔽ステップ実施後、該エッチングチャンバーにガスを供給し、該ウェーハをドライエッチングするドライエッチングステップと、を備えるウェーハの加工方法。 - 該環状フレームは樹脂で形成され、該遮蔽ステップでは該環状フレームが該カバー部材で覆われる請求項1に記載のウェーハの加工方法。
- 該ドライエッチングステップでは、該ウェーハにプラズマ状態のガスを供給するプラズマエッチングを実施する請求項1又は2に記載のウェーハの加工方法。
Priority Applications (8)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2019135257A JP7345304B2 (ja) | 2019-07-23 | 2019-07-23 | ウェーハの加工方法 |
KR1020200073380A KR20210011878A (ko) | 2019-07-23 | 2020-06-17 | 웨이퍼의 가공 방법 |
SG10202005943XA SG10202005943XA (en) | 2019-07-23 | 2020-06-22 | Processing method of wafer |
MYPI2020003247A MY195571A (en) | 2019-07-23 | 2020-06-23 | Processing Method of Wafer |
CN202010650925.6A CN112289745A (zh) | 2019-07-23 | 2020-07-08 | 晶片的加工方法 |
US16/930,597 US11171009B2 (en) | 2019-07-23 | 2020-07-16 | Processing method of wafer |
DE102020208909.4A DE102020208909A1 (de) | 2019-07-23 | 2020-07-16 | Bearbeitungsverfahren für einen wafer |
TW109124448A TWI827865B (zh) | 2019-07-23 | 2020-07-20 | 晶圓之加工方法 |
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JP2019135257A JP7345304B2 (ja) | 2019-07-23 | 2019-07-23 | ウェーハの加工方法 |
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JP2021019146A JP2021019146A (ja) | 2021-02-15 |
JP7345304B2 true JP7345304B2 (ja) | 2023-09-15 |
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JP2019135257A Active JP7345304B2 (ja) | 2019-07-23 | 2019-07-23 | ウェーハの加工方法 |
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US (1) | US11171009B2 (ja) |
JP (1) | JP7345304B2 (ja) |
KR (1) | KR20210011878A (ja) |
CN (1) | CN112289745A (ja) |
DE (1) | DE102020208909A1 (ja) |
MY (1) | MY195571A (ja) |
SG (1) | SG10202005943XA (ja) |
TW (1) | TWI827865B (ja) |
Citations (4)
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