JP2019029489A - 積層型素子の製造方法 - Google Patents
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- 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
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- 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
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- H01L2225/06503—Stacked arrangements of devices
- H01L2225/06541—Conductive via connections through the device, e.g. vertical interconnects, through silicon via [TSV]
Abstract
Description
[改質領域の形成]
[第1実施形態]
波長:〜1170nm
パルス幅:350ns以上
パルスエネルギー:10μJ以上
パルスピッチ:6.5〜15μm
回路層22側の改質領域7と表面21fとの距離:40μm以上
各切断予定ライン5a,5bに対するレーザ光L1の走査回数:2焦点分岐で1回
波長:1064〜1170nm
パルス幅:1〜60ns
パルスエネルギー:0.1〜0.5μJ
[第2実施形態]
[第3実施形態]
波長:1170〜1800nm
パルス幅:350ns以上
パルスエネルギー:25μJ以上
パルスピッチ:6.5〜45μm
回路層22側の改質領域7と表面21fとの距離:200μm以上
各切断予定ライン5a,5bに対するレーザ光L1の走査回数:2回
[第4実施形態]
[変形例]
Claims (11)
- 表面及び裏面を有する半導体基板と、前記表面に沿って2次元状に配列された複数の機能素子を含む回路層と、を備える半導体ウェハとして、第1ウェハを用意し、前記第1ウェハの前記半導体基板に対して、前記機能素子の間を通るように設定された切断予定ラインに沿ってレーザ光を照射することにより、前記切断予定ラインに沿って第1改質領域を形成する第1形成工程と、
前記第1形成工程の後に、前記第1ウェハの前記半導体基板を研削する第1研削工程と、
前記第1研削工程の後に、前記半導体ウェハとして、第2ウェハを用意し、前記第1ウェハの前記機能素子のそれぞれと前記第2ウェハの前記機能素子のそれぞれとが互いに対応するように、前記第1ウェハの前記半導体基板に前記第2ウェハの前記回路層を接合する接合工程と、
前記接合工程の後に、前記第2ウェハの前記半導体基板に対して、前記切断予定ラインに沿ってレーザ光を照射することにより、前記切断予定ラインに沿って第2改質領域を形成する第2形成工程と、
前記第2形成工程の後に、前記第2ウェハの前記半導体基板を研削する第2研削工程と、を備える、積層型素子の製造方法。 - 前記第1形成工程においては、前記第1改質領域から前記第1ウェハの前記回路層側に伸展する第1亀裂を形成する、請求項1に記載の積層型素子の製造方法。
- 前記第1研削工程においては、前記第1改質領域を除去し、前記第1ウェハの前記半導体基板の前記裏面に前記第1亀裂を露出させる、請求項2に記載の積層型素子の製造方法。
- 前記第2形成工程においては、前記第2改質領域から前記第2ウェハの前記回路層側に伸展する第2亀裂を形成する、請求項1〜3のいずれか一項に記載の積層型素子の製造方法。
- 前記第2形成工程においては、前記第1ウェハの前記半導体基板と前記第2ウェハの前記回路層との界面に至るように前記第2亀裂を形成する、請求項4に記載の積層型素子の製造方法。
- 前記第2研削工程においては、前記第2改質領域を除去し、前記第2ウェハの前記半導体基板の前記裏面に前記第2亀裂を露出させる、請求項4又は5に記載の積層型素子の製造方法。
- 表面及び裏面を有する半導体基板と、前記表面に沿って2次元状に配列された複数の機能素子を含む回路層と、を備える半導体ウェハとして、第1ウェハを用意し、前記第1ウェハの前記半導体基板を研削する第1研削工程と、
前記第1研削工程の後に、前記半導体ウェハとして、第2ウェハを用意し、前記第1ウェハの前記機能素子のそれぞれと前記第2ウェハの前記機能素子のそれぞれとが互いに対応するように、前記第1ウェハの前記半導体基板に前記第2ウェハの前記回路層を接合する接合工程と、
前記接合工程の後に、前記第2ウェハの前記半導体基板に対して、前記機能素子の間を通るように設定された切断予定ラインに沿ってレーザ光を照射することにより、前記切断予定ラインに沿って改質領域を形成する形成工程と、
前記形成工程の後に、前記第2ウェハの前記半導体基板を研削する第2研削工程と、を備える、積層型素子の製造方法。 - 前記形成工程においては、前記改質領域から前記第2ウェハの前記回路層側に伸展する亀裂を形成する、請求項7に記載の積層型素子の製造方法。
- 前記形成工程においては、前記第1ウェハの前記回路層と前記第1ウェハの前記半導体基板との界面に至るように前記亀裂を形成する、請求項8に記載の積層型素子の製造方法。
- 前記第2研削工程においては、前記改質領域を除去し、前記第2ウェハの前記半導体基板の前記裏面に前記亀裂を露出させる、請求項8又は9に記載の積層型素子の製造方法。
- 前記第2研削工程の後に、前記切断予定ラインに沿って前記第1ウェハ及び前記第2ウェハが切断されることにより得られた複数の積層型素子をピックアップするピックアップ工程を更に備える、請求項1〜10のいずれか一項に記載の積層型素子の製造方法。
Priority Applications (8)
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JP2017146861A JP6981800B2 (ja) | 2017-07-28 | 2017-07-28 | 積層型素子の製造方法 |
CN201880048624.7A CN110945630B (zh) | 2017-07-28 | 2018-07-13 | 层叠型元件的制造方法 |
DE112018003840.8T DE112018003840T5 (de) | 2017-07-28 | 2018-07-13 | Schichtelement-herstellungsverfahren |
PCT/JP2018/026532 WO2019021865A1 (ja) | 2017-07-28 | 2018-07-13 | 積層型素子の製造方法 |
US16/633,808 US11211250B2 (en) | 2017-07-28 | 2018-07-13 | Laminated element manufacturing method |
KR1020207005257A KR102642496B1 (ko) | 2017-07-28 | 2018-07-13 | 적층형 소자의 제조 방법 |
TW107125451A TWI794257B (zh) | 2017-07-28 | 2018-07-24 | 層積型元件之製造方法 |
US17/534,835 US11817319B2 (en) | 2017-07-28 | 2021-11-24 | Laminated element manufacturing method |
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JP2022528899A (ja) * | 2019-06-20 | 2022-06-16 | 長江存儲科技有限責任公司 | 方法及びレーザ・ダイシング・システム |
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CN115332064A (zh) * | 2020-02-21 | 2022-11-11 | 新唐科技日本株式会社 | 单片化方法 |
EP3913660A1 (en) * | 2020-05-22 | 2021-11-24 | Nichia Corporation | Method of cutting semiconductor element and semiconductor element |
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CN110945630B (zh) | 2023-10-31 |
US20210057222A1 (en) | 2021-02-25 |
JP6981800B2 (ja) | 2021-12-17 |
US11817319B2 (en) | 2023-11-14 |
TWI794257B (zh) | 2023-03-01 |
US20220084827A1 (en) | 2022-03-17 |
DE112018003840T5 (de) | 2020-04-30 |
KR20200030600A (ko) | 2020-03-20 |
TW201921461A (zh) | 2019-06-01 |
CN110945630A (zh) | 2020-03-31 |
US11211250B2 (en) | 2021-12-28 |
WO2019021865A1 (ja) | 2019-01-31 |
KR102642496B1 (ko) | 2024-03-04 |
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