JP2007294950A - 深い接合のシリコン・オン・インシュレータ・トランジスタの形成方法 - Google Patents
深い接合のシリコン・オン・インシュレータ・トランジスタの形成方法 Download PDFInfo
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- JP2007294950A JP2007294950A JP2007103478A JP2007103478A JP2007294950A JP 2007294950 A JP2007294950 A JP 2007294950A JP 2007103478 A JP2007103478 A JP 2007103478A JP 2007103478 A JP2007103478 A JP 2007103478A JP 2007294950 A JP2007294950 A JP 2007294950A
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- 238000000034 method Methods 0.000 title claims abstract description 33
- 239000012212 insulator Substances 0.000 title claims abstract description 9
- 238000002513 implantation Methods 0.000 claims abstract description 66
- 239000004020 conductor Substances 0.000 claims abstract description 57
- 239000004065 semiconductor Substances 0.000 claims abstract description 48
- 239000002019 doping agent Substances 0.000 claims abstract description 40
- 239000000758 substrate Substances 0.000 claims abstract description 26
- 239000007943 implant Substances 0.000 claims description 19
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 230000000873 masking effect Effects 0.000 claims description 7
- 125000006850 spacer group Chemical group 0.000 description 28
- 230000015572 biosynthetic process Effects 0.000 description 15
- 238000005755 formation reaction Methods 0.000 description 15
- 239000000463 material Substances 0.000 description 12
- 125000001475 halogen functional group Chemical group 0.000 description 11
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 10
- 239000013078 crystal Substances 0.000 description 7
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 7
- 229920005591 polysilicon Polymers 0.000 description 7
- 230000005669 field effect Effects 0.000 description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 4
- 229920002120 photoresistant polymer Polymers 0.000 description 4
- 229910052710 silicon Inorganic materials 0.000 description 4
- 239000010703 silicon Substances 0.000 description 4
- 229910052581 Si3N4 Inorganic materials 0.000 description 3
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 3
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- BOTDANWDWHJENH-UHFFFAOYSA-N Tetraethyl orthosilicate Chemical compound CCO[Si](OCC)(OCC)OCC BOTDANWDWHJENH-UHFFFAOYSA-N 0.000 description 2
- 239000006117 anti-reflective coating Substances 0.000 description 2
- 230000000295 complement effect Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000002955 isolation Methods 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910021421 monocrystalline silicon Inorganic materials 0.000 description 1
- 150000004767 nitrides Chemical class 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 238000001020 plasma etching Methods 0.000 description 1
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- 239000000126 substance Substances 0.000 description 1
- 238000001039 wet etching Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L27/00—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
- H01L27/02—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers
- H01L27/12—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body
- H01L27/1203—Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components specially adapted for rectifying, oscillating, amplifying or switching and having potential barriers; including integrated passive circuit elements having potential barriers the substrate being other than a semiconductor body, e.g. an insulating body the substrate comprising an insulating body on a semiconductor body, e.g. SOI
-
- 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
- H01L21/82—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 to produce devices, e.g. integrated circuits, each consisting of a plurality of components
- H01L21/822—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 to produce devices, e.g. integrated circuits, each consisting of a plurality of components the substrate being a semiconductor, using silicon technology
- H01L21/8232—Field-effect technology
- H01L21/8234—MIS technology, i.e. integration processes of field effect transistors of the conductor-insulator-semiconductor type
- H01L21/8238—Complementary field-effect transistors, e.g. CMOS
- H01L21/823814—Complementary field-effect transistors, e.g. CMOS with a particular manufacturing method of the source or drain structures, e.g. specific source or drain implants or silicided source or drain structures or raised source or drain structures
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Thin Film Transistor (AREA)
Abstract
【解決手段】 この方法は、(a)埋め込み誘電体層によって基板のバルク領域から分離された絶縁体上半導体構造(「SOI」)層を含む基板を設けるステップと、(b)埋め込み誘電体層に対するSOI層の境界面で所定のドーパント濃度を達成するためにSOI層に対して第1の注入を行うステップと、(c)多結晶半導体ゲート導体(「ポリ・ゲート」)内ならびにポリ・ゲートに隣接して配置されたソース領域およびドレイン領域内で所定のドーパント濃度を達成するためにSOI層に対して第2の注入を行うステップとを含み、第1の注入の最大深さは第2の注入の最大深さより深い。
【選択図】 図2
Description
204b:単結晶アクティブ半導体領域
206:基板
208:バルク領域
210:p型電界効果トランジスタ(PFET)
212:ゲート導体またはポリ・ゲート
213:第1のスペーサ
214:第2のスペーサ
215:チャネル領域
216:ソース領域
217:ドレイン領域
218:ゲート誘電体層
220:n型電界効果トランジスタ(NFET)
222:ゲート導体またはポリ・ゲート
223:第1のスペーサ
224:第2のスペーサ
225:チャネル領域
226:ソース領域
227:ドレイン領域
228:ゲート誘電体層
230a:浅いトレンチ分離(STI)領域
230b:STI領域
230c:STI領域
250:埋め込み絶縁層または埋め込み酸化物(BOX)層
252:SOI−BOX境界面
266:ハロー領域または拡張領域
267:ハロー領域または拡張領域
275:ゲート導体の高さ
285:SOI層の厚さ
Claims (9)
- トランジスタ構造を形成するための方法において、
(a)埋め込み誘電体層によって基板のバルク領域から分離された絶縁体上半導体構造(「SOI」)層を含む前記基板を設けるステップと、
(b)前記埋め込み誘電体層に対する前記SOI層の境界面で所定のドーパント濃度を達成するために前記SOI層に対して第1の注入を行うステップと、
(c)多結晶半導体ゲート導体(「ポリ・ゲート」)内ならびに前記ポリ・ゲートに隣接して配置されたソース領域およびドレイン領域内で所定のドーパント濃度を達成するために前記SOI層に対して第2の注入を行うステップと、
を含み、
前記第1の注入の最大深さが前記第2の注入の最大深さより大きい、方法。 - 前記誘電体層のすぐ上にあって、ピーク・ドーパント濃度を有する注入を達成するように、前記第1の注入ステップが実行される、請求項1に記載の方法。
- 前記SOI層が前記誘電体層に接する場合に、前記第1の注入ステップが約1×1019cm-3のドーパント濃度を生成する、請求項2に記載の方法。
- 前記誘電体層が埋め込み酸化物(BOX)層である、請求項3に記載の方法。
- 前記ポリ・ゲートが、その後、形成されるはずの領域内に犠牲ゲートがまず形成され、前記犠牲ゲートが前記ポリ・ゲートより大きい表面領域を覆う、請求項4に記載の方法。
- 犠牲ゲートが後で除去され、次に前記ポリ・ゲートならびに前記ソース領域および前記ドレイン領域が形成される、請求項1に記載の方法。
- 前記犠牲ゲートの長さが前記ポリ・ゲートの長さより20〜30nmだけ大きい、請求項6に記載の方法。
- 誘電体キャップが前記第1の注入ステップから前記ポリ・ゲートをマスクしている間に前記ポリ・ゲートをマスクとして使用して前記第1の注入ステップを実行し、次に前記第2の注入ステップを実行する前に前記誘電体キャップを除去することにより、前記注入ステップが実行される、請求項1に記載の方法。
- 誘電体キャップが前記第1および第2の注入ステップから前記ポリ・ゲートをマスクしている間に前記ポリ・ゲートをマスクとして使用して前記第1および第2の注入ステップを実行することにより、前記注入ステップが実行され、前記方法が、注入が行われないようにソース領域およびドレイン領域を同時にマスクしながら前記ポリ・ゲートに対して注入を行う第3の注入ステップをさらに含む、請求項1に記載の方法。
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/308,685 US7534667B2 (en) | 2006-04-21 | 2006-04-21 | Structure and method for fabrication of deep junction silicon-on-insulator transistors |
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Publication Number | Publication Date |
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JP2007294950A true JP2007294950A (ja) | 2007-11-08 |
Family
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Application Number | Title | Priority Date | Filing Date |
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JP2007103478A Pending JP2007294950A (ja) | 2006-04-21 | 2007-04-11 | 深い接合のシリコン・オン・インシュレータ・トランジスタの形成方法 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7534667B2 (ja) |
JP (1) | JP2007294950A (ja) |
CN (1) | CN100533693C (ja) |
TW (1) | TW200746362A (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
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US10971633B2 (en) * | 2019-09-04 | 2021-04-06 | Stmicroelectronics (Rousset) Sas | Structure and method of forming a semiconductor device |
CN113517185A (zh) * | 2020-04-10 | 2021-10-19 | 中芯北方集成电路制造(北京)有限公司 | 半导体结构及其形成方法 |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63271972A (ja) * | 1987-04-28 | 1988-11-09 | Sony Corp | 薄膜トランジスタの製法 |
JPH01278768A (ja) * | 1988-04-27 | 1989-11-09 | General Electric Co <Ge> | ソースおよびドレイン深さ延長部を有する半導体装置とその製造方法 |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6503783B1 (en) * | 2000-08-31 | 2003-01-07 | Micron Technology, Inc. | SOI CMOS device with reduced DIBL |
US6294413B1 (en) * | 2000-12-27 | 2001-09-25 | Vanguard International Semiconductor Corp. | Method for fabricating a SOI (silicon on insulator) device |
JP2006120814A (ja) * | 2004-10-21 | 2006-05-11 | Renesas Technology Corp | 半導体装置の製造方法 |
-
2006
- 2006-04-21 US US11/308,685 patent/US7534667B2/en not_active Expired - Fee Related
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2007
- 2007-04-10 TW TW096112528A patent/TW200746362A/zh unknown
- 2007-04-11 JP JP2007103478A patent/JP2007294950A/ja active Pending
- 2007-04-16 CN CNB2007100963697A patent/CN100533693C/zh not_active Expired - Fee Related
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63271972A (ja) * | 1987-04-28 | 1988-11-09 | Sony Corp | 薄膜トランジスタの製法 |
JPH01278768A (ja) * | 1988-04-27 | 1989-11-09 | General Electric Co <Ge> | ソースおよびドレイン深さ延長部を有する半導体装置とその製造方法 |
Also Published As
Publication number | Publication date |
---|---|
US7534667B2 (en) | 2009-05-19 |
TW200746362A (en) | 2007-12-16 |
US20070249126A1 (en) | 2007-10-25 |
CN100533693C (zh) | 2009-08-26 |
CN101060086A (zh) | 2007-10-24 |
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