EP3662504A1 - Halbleiterscheibe aus einkristallinem silizium und verfahren zur herstellung der halbleiterscheibe - Google Patents
Halbleiterscheibe aus einkristallinem silizium und verfahren zur herstellung der halbleiterscheibeInfo
- Publication number
- EP3662504A1 EP3662504A1 EP18743014.5A EP18743014A EP3662504A1 EP 3662504 A1 EP3662504 A1 EP 3662504A1 EP 18743014 A EP18743014 A EP 18743014A EP 3662504 A1 EP3662504 A1 EP 3662504A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- less
- semiconductor wafer
- single crystal
- wafer
- μιτι
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B15/00—Single-crystal growth by pulling from a melt, e.g. Czochralski method
- C30B15/20—Controlling or regulating
- C30B15/206—Controlling or regulating the thermal history of growing the ingot
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B25/00—Single-crystal growth by chemical reaction of reactive gases, e.g. chemical vapour-deposition growth
- C30B25/02—Epitaxial-layer growth
- C30B25/18—Epitaxial-layer growth characterised by the substrate
- C30B25/20—Epitaxial-layer growth characterised by the substrate the substrate being of the same materials as the epitaxial layer
-
- C—CHEMISTRY; METALLURGY
- C30—CRYSTAL GROWTH
- C30B—SINGLE-CRYSTAL GROWTH; UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL OR UNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL; REFINING BY ZONE-MELTING OF MATERIAL; PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE; APPARATUS THEREFOR
- C30B29/00—Single crystals or homogeneous polycrystalline material with defined structure characterised by the material or by their shape
- C30B29/02—Elements
- C30B29/06—Silicon
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/50—Physical imperfections
- H10D62/53—Physical imperfections the imperfections being within the semiconductor body
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
- H10D62/80—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials
- H10D62/83—Semiconductor bodies, or regions thereof, of devices having potential barriers characterised by the materials being Group IV materials, e.g. B-doped Si or undoped Ge
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/20—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials
- H10P14/29—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials characterised by the substrates
- H10P14/2901—Materials
- H10P14/2902—Materials being Group IVA materials
- H10P14/2905—Silicon, silicon germanium or germanium
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/20—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials
- H10P14/29—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials characterised by the substrates
- H10P14/2924—Structures
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/20—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials
- H10P14/34—Deposited materials, e.g. layers
- H10P14/3402—Deposited materials, e.g. layers characterised by the chemical composition
- H10P14/3404—Deposited materials, e.g. layers characterised by the chemical composition being Group IVA materials
- H10P14/3411—Silicon, silicon germanium or germanium
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/20—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials
- H10P14/34—Deposited materials, e.g. layers
- H10P14/3438—Doping during depositing
- H10P14/3441—Conductivity type
- H10P14/3444—P-type
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P14/00—Formation of materials, e.g. in the shape of layers or pillars
- H10P14/20—Formation of materials, e.g. in the shape of layers or pillars of semiconductor materials
- H10P14/34—Deposited materials, e.g. layers
- H10P14/3451—Structure
- H10P14/3452—Microstructure
- H10P14/3458—Monocrystalline
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
- H10P36/00—Gettering within semiconductor bodies
- H10P36/20—Intrinsic gettering, i.e. thermally inducing defects by using oxygen present in the silicon body
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
Definitions
- the substrate wafer is separated from a single crystal, which is pulled by the Czochralski method (CZ method).
- CZ method involves pulling the single crystal from a melt contained in a crucible.
- the substrate wafer is typically mechanically machined, etched and polished before the epitaxial layer is deposited on a polished upper side surface of the substrate wafer by chemical vapor deposition (CVD).
- CVD chemical vapor deposition
- a p / p + epitaxially coated semiconductor wafer is particularly suitable as a base material for the production of solid-state image sensors.
- the high dopant concentration in the substrate wafer facilitates the formation of oxygen precipitates, which are required to bind to metallic impurities and keep away from the epitaxial layer as so-called internal getter.
- Substrate disc before depositing the epitaxial layer to refrain.
- the object of the invention is achieved by an epitaxially coated
- the substrate disk contains an amount of boron sufficient to withstand the
- the residence time is preferably not less than 105 minutes and not more than 157 minutes.
- the method described in DE 10 2014 221 421 B3 has important differences.
- the melt is doped with a larger amount of boron so that the resistivity of the single crystal is not less than 5 nm and not more than 10 mm, preferably not less than 6 m ⁇ cm and less than 10 m ⁇ cm. Furthermore, care is taken when cooling the monocrystal that the
- the melt is preferably applied with a magnetic field.
- the magnetic field is preferably a horizontal magnetic field. It is omitted, the melt with carbon or with nitrogen or with
- the drawn monocrystal are processed into substrate disks of monocrystalline silicon and the substrate disks are further processed into epitaxially coated semiconductor disks.
- the working steps preferably comprise the mechanical processing of a substrate wafer, for example the lapping and / or the grinding of the side surfaces of the substrate
- a monocrystal of single crystal silicon was drawn by the CZ method at a pulling rate of 0.57 mm / min.
- a water-cooled condenser was used to cool the monocrystal.
- the melt was doped with boron only and exposed to a horizontal magnetic field.
- the density of BMDs increases even at a comparatively small distance from the front side to a maximum of slightly less than 1 ⁇ 10 11 / cm 3 , and then falls within a comparatively short distance to values in the range of 5 ⁇ 10 9 / cm 3 .
- a monocrystal of single crystal silicon was drawn by the CZ method at a pulling rate of 0.57 mm / min. Details on length of stay (dt), with which the monocrystal was cooled in certain temperature intervals, the following table can be found.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Crystallography & Structural Chemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Chemical Vapour Deposition (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102017213587.5A DE102017213587A1 (de) | 2017-08-04 | 2017-08-04 | Halbleiterscheibe aus einkristallinem Silizium und Verfahren zur Herstellung der Halbleiterscheibe |
| PCT/EP2018/069584 WO2019025197A1 (de) | 2017-08-04 | 2018-07-19 | Halbleiterscheibe aus einkristallinem silizium und verfahren zur herstellung der halbleiterscheibe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP3662504A1 true EP3662504A1 (de) | 2020-06-10 |
Family
ID=62976069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP18743014.5A Pending EP3662504A1 (de) | 2017-08-04 | 2018-07-19 | Halbleiterscheibe aus einkristallinem silizium und verfahren zur herstellung der halbleiterscheibe |
Country Status (10)
| Country | Link |
|---|---|
| US (2) | US11417733B2 (de) |
| EP (1) | EP3662504A1 (de) |
| JP (1) | JP7098717B2 (de) |
| KR (1) | KR102318313B1 (de) |
| CN (1) | CN110998789B (de) |
| DE (1) | DE102017213587A1 (de) |
| IL (1) | IL271983B2 (de) |
| SG (1) | SG11202000957SA (de) |
| TW (1) | TWI665342B (de) |
| WO (1) | WO2019025197A1 (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017213587A1 (de) * | 2017-08-04 | 2019-02-07 | Siltronic Ag | Halbleiterscheibe aus einkristallinem Silizium und Verfahren zur Herstellung der Halbleiterscheibe |
| FI3940124T3 (fi) * | 2020-07-14 | 2024-04-03 | Siltronic Ag | Kidekappale yksikiteisestä piistä |
| US11987900B2 (en) * | 2020-11-11 | 2024-05-21 | Globalwafers Co., Ltd. | Methods for forming a silicon substrate with reduced grown-in nuclei for epitaxial defects and methods for forming an epitaxial wafer |
| EP4137613A1 (de) * | 2021-08-18 | 2023-02-22 | Siltronic AG | Verfahren zur herstellung einer epitaktisch beschichteten hableiterscheibe aus einkristallinem silizium |
Family Cites Families (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TW331017B (en) * | 1996-02-15 | 1998-05-01 | Toshiba Co Ltd | Manufacturing and checking method of semiconductor substrate |
| US6162708A (en) * | 1998-05-22 | 2000-12-19 | Shin-Etsu Handotai Co., Ltd. | Method for producing an epitaxial silicon single crystal wafer and the epitaxial silicon single crystal wafer |
| JP3601340B2 (ja) | 1999-02-01 | 2004-12-15 | 信越半導体株式会社 | エピタキシャルシリコンウエーハおよびその製造方法並びにエピタキシャルシリコンウエーハ用基板 |
| JP2003124219A (ja) * | 2001-10-10 | 2003-04-25 | Sumitomo Mitsubishi Silicon Corp | シリコンウエーハおよびエピタキシャルシリコンウエーハ |
| KR20070032336A (ko) * | 2004-07-22 | 2007-03-21 | 신에쯔 한도타이 가부시키가이샤 | 실리콘 에피택셜 웨이퍼 및 그 제조방법 |
| JP4711167B2 (ja) * | 2004-08-25 | 2011-06-29 | 信越半導体株式会社 | シリコンエピタキシャルウェーハの製造方法 |
| DE102005013831B4 (de) * | 2005-03-24 | 2008-10-16 | Siltronic Ag | Siliciumscheibe und Verfahren zur thermischen Behandlung einer Siliciumscheibe |
| SG142208A1 (en) * | 2006-10-18 | 2008-05-28 | Siltronic Ag | Process for producing p»-doped and epitaxially coated semiconductor wafers from silicon |
| JP4853237B2 (ja) * | 2006-11-06 | 2012-01-11 | 株式会社Sumco | エピタキシャルウェーハの製造方法 |
| JP5276863B2 (ja) * | 2008-03-21 | 2013-08-28 | グローバルウェーハズ・ジャパン株式会社 | シリコンウェーハ |
| KR101184380B1 (ko) * | 2008-08-28 | 2012-09-20 | 매그나칩 반도체 유한회사 | 에피택셜 웨이퍼 제조 방법, 이를 적용한 에피택셜 웨이퍼,및 반도체 소자 |
| DE102008046617B4 (de) * | 2008-09-10 | 2016-02-04 | Siltronic Ag | Halbleiterscheibe aus einkristallinem Silizium und Verfahren für deren Herstellung |
| JP2011253978A (ja) | 2010-06-03 | 2011-12-15 | Sumco Corp | エピタキシャル基板およびその製造方法 |
| WO2014078847A1 (en) * | 2012-11-19 | 2014-05-22 | Sunedison, Inc. | Production of high precipitate density wafers by activation of inactive oxygen precipitate nuclei by heat treatment |
| JP6020342B2 (ja) * | 2013-05-10 | 2016-11-02 | 信越半導体株式会社 | シリコンエピタキシャルウェーハ及びシリコンエピタキシャルウェーハの製造方法 |
| DE102014221421B3 (de) | 2014-10-22 | 2015-12-24 | Siltronic Ag | Verfahren zur Herstellung einer epitaktischen Halbleiterscheibe aus einkristallinem Silizium |
| DE102015200890A1 (de) * | 2015-01-21 | 2016-07-21 | Siltronic Ag | Epitaktisch beschichtete Halbleiterscheibe und Verfahren zur Herstellung einer epitaktisch beschichteten Halbleiterscheibe |
| DE102015226399A1 (de) * | 2015-12-22 | 2017-06-22 | Siltronic Ag | Siliciumscheibe mit homogener radialer Sauerstoffvariation |
| DE102017213587A1 (de) * | 2017-08-04 | 2019-02-07 | Siltronic Ag | Halbleiterscheibe aus einkristallinem Silizium und Verfahren zur Herstellung der Halbleiterscheibe |
-
2017
- 2017-08-04 DE DE102017213587.5A patent/DE102017213587A1/de active Pending
-
2018
- 2018-07-19 WO PCT/EP2018/069584 patent/WO2019025197A1/de not_active Ceased
- 2018-07-19 IL IL271983A patent/IL271983B2/en unknown
- 2018-07-19 CN CN201880050755.9A patent/CN110998789B/zh active Active
- 2018-07-19 KR KR1020207004022A patent/KR102318313B1/ko active Active
- 2018-07-19 JP JP2020505772A patent/JP7098717B2/ja active Active
- 2018-07-19 US US16/636,352 patent/US11417733B2/en active Active
- 2018-07-19 SG SG11202000957SA patent/SG11202000957SA/en unknown
- 2018-07-19 EP EP18743014.5A patent/EP3662504A1/de active Pending
- 2018-07-25 TW TW107125727A patent/TWI665342B/zh active
-
2022
- 2022-06-08 US US17/835,241 patent/US11621330B2/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| SG11202000957SA (en) | 2020-03-30 |
| TWI665342B (zh) | 2019-07-11 |
| IL271983B (en) | 2022-12-01 |
| CN110998789B (zh) | 2023-07-07 |
| WO2019025197A1 (de) | 2019-02-07 |
| IL271983A (en) | 2020-02-27 |
| US11417733B2 (en) | 2022-08-16 |
| TW201910567A (zh) | 2019-03-16 |
| CN110998789A (zh) | 2020-04-10 |
| DE102017213587A1 (de) | 2019-02-07 |
| US20220328636A1 (en) | 2022-10-13 |
| JP7098717B2 (ja) | 2022-07-11 |
| KR102318313B1 (ko) | 2021-10-29 |
| IL271983B2 (en) | 2023-04-01 |
| KR20200028439A (ko) | 2020-03-16 |
| US20200168712A1 (en) | 2020-05-28 |
| US11621330B2 (en) | 2023-04-04 |
| JP2020529958A (ja) | 2020-10-15 |
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