JP4453960B2 - ダブル・ゲート・トランジスタおよび製法 - Google Patents
ダブル・ゲート・トランジスタおよび製法 Download PDFInfo
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- JP4453960B2 JP4453960B2 JP2003507897A JP2003507897A JP4453960B2 JP 4453960 B2 JP4453960 B2 JP 4453960B2 JP 2003507897 A JP2003507897 A JP 2003507897A JP 2003507897 A JP2003507897 A JP 2003507897A JP 4453960 B2 JP4453960 B2 JP 4453960B2
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- 238000004519 manufacturing process Methods 0.000 title description 21
- 229910021420 polycrystalline silicon Inorganic materials 0.000 claims description 65
- 229920005591 polysilicon Polymers 0.000 claims description 65
- 238000000034 method Methods 0.000 claims description 54
- 125000006850 spacer group Chemical group 0.000 claims description 47
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 44
- 229910052710 silicon Inorganic materials 0.000 claims description 44
- 239000010703 silicon Substances 0.000 claims description 44
- 150000004767 nitrides Chemical class 0.000 claims description 22
- 238000000151 deposition Methods 0.000 claims description 15
- 239000002019 doping agent Substances 0.000 claims description 14
- 238000000059 patterning Methods 0.000 claims description 12
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- 238000005530 etching Methods 0.000 claims description 6
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- 230000007261 regionalization Effects 0.000 claims description 5
- 238000002513 implantation Methods 0.000 claims description 4
- 229910052581 Si3N4 Inorganic materials 0.000 claims description 3
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 3
- GNFTZDOKVXKIBK-UHFFFAOYSA-N 3-(2-methoxyethoxy)benzohydrazide Chemical compound COCCOC1=CC=CC(C(=O)NN)=C1 GNFTZDOKVXKIBK-UHFFFAOYSA-N 0.000 claims 1
- FGUUSXIOTUKUDN-IBGZPJMESA-N C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 Chemical compound C1(=CC=CC=C1)N1C2=C(NC([C@H](C1)NC=1OC(=NN=1)C1=CC=CC=C1)=O)C=CC=C2 FGUUSXIOTUKUDN-IBGZPJMESA-N 0.000 claims 1
- 125000001475 halogen functional group Chemical group 0.000 claims 1
- 235000012431 wafers Nutrition 0.000 description 37
- 239000007943 implant Substances 0.000 description 28
- 239000000463 material Substances 0.000 description 24
- 230000015572 biosynthetic process Effects 0.000 description 12
- 125000005843 halogen group Chemical group 0.000 description 8
- 230000008021 deposition Effects 0.000 description 6
- 238000001020 plasma etching Methods 0.000 description 6
- 239000004065 semiconductor Substances 0.000 description 6
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 5
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 229910052796 boron Inorganic materials 0.000 description 5
- 230000003647 oxidation Effects 0.000 description 5
- 238000007254 oxidation reaction Methods 0.000 description 5
- 229910021332 silicide Inorganic materials 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 229910052785 arsenic Inorganic materials 0.000 description 3
- RQNWIZPPADIBDY-UHFFFAOYSA-N arsenic atom Chemical compound [As] RQNWIZPPADIBDY-UHFFFAOYSA-N 0.000 description 3
- 239000000969 carrier Substances 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- FVBUAEGBCNSCDD-UHFFFAOYSA-N silicide(4-) Chemical compound [Si-4] FVBUAEGBCNSCDD-UHFFFAOYSA-N 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 229910000577 Silicon-germanium Inorganic materials 0.000 description 2
- 238000000137 annealing Methods 0.000 description 2
- 125000004429 atom Chemical group 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- LEVVHYCKPQWKOP-UHFFFAOYSA-N [Si].[Ge] Chemical compound [Si].[Ge] LEVVHYCKPQWKOP-UHFFFAOYSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 210000000746 body region Anatomy 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000005468 ion implantation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000015654 memory Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 1
- 238000005498 polishing Methods 0.000 description 1
- 238000010405 reoxidation reaction Methods 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
- 238000009827 uniform distribution Methods 0.000 description 1
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/01—Manufacture or treatment
- H10D84/0123—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs
- H10D84/0126—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs
- H10D84/0165—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs the components including complementary IGFETs, e.g. CMOS devices
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/67—Thin-film transistors [TFT]
- H10D30/6729—Thin-film transistors [TFT] characterised by the electrodes
- H10D30/6737—Thin-film transistors [TFT] characterised by the electrodes characterised by the electrode materials
- H10D30/6739—Conductor-insulator-semiconductor electrodes
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/01—Manufacture or treatment
- H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
- H10D30/024—Manufacture or treatment of FETs having insulated gates [IGFET] of fin field-effect transistors [FinFET]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D30/00—Field-effect transistors [FET]
- H10D30/60—Insulated-gate field-effect transistors [IGFET]
- H10D30/62—Fin field-effect transistors [FinFET]
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/01—Manufacture or treatment
- H10D84/0123—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs
- H10D84/0126—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs
- H10D84/0165—Integrating together multiple components covered by H10D12/00 or H10D30/00, e.g. integrating multiple IGBTs the components including insulated gates, e.g. IGFETs the components including complementary IGFETs, e.g. CMOS devices
- H10D84/0172—Manufacturing their gate conductors
- H10D84/0177—Manufacturing their gate conductors the gate conductors having different materials or different implants
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/01—Manufacture or treatment
- H10D84/02—Manufacture or treatment characterised by using material-based technologies
- H10D84/03—Manufacture or treatment characterised by using material-based technologies using Group IV technology, e.g. silicon technology or silicon-carbide [SiC] technology
- H10D84/038—Manufacture or treatment characterised by using material-based technologies using Group IV technology, e.g. silicon technology or silicon-carbide [SiC] technology using silicon technology, e.g. SiGe
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
- H10D84/80—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs
- H10D84/82—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components
- H10D84/83—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components of only insulated-gate FETs [IGFET]
- H10D84/85—Complementary IGFETs, e.g. CMOS
Landscapes
- Thin Film Transistor (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Description
Claims (10)
- フィン型ダブル・ゲート電界効果トランジスタを形成する方法であって、
a)埋め込まれた誘電体層の上にシリコン層を備えるシリコン・オン・インシュレータ基板を用意する(101)ステップ、
b)前記シリコン層の上側にマンドレル層(212)を形成し、該マンドレル層をパターン形成し、該マンドレル層の前記パターン形成により露出された側の端部に側壁スペーサを設ける(102)ステップと、
c)残っているマンドレル層及び前記側壁スペーサをマスクとして用いて前記シリコン層をパターン形成して(104)、ダブル・ゲートの一方が形成される領域を画定するステップと、
d)前記シリコン層の、前記パターン形成により露出された側面にゲート酸化膜を形成する(104)ステップと、
e)前記ダブル・ゲートの一方が形成される領域に、第1導電型のポリシリコンを堆積させた後に平坦化するステップと、
f)前記残っているマンドレル層を選択的に除去して、前記側壁スペーサの、前記マンドレル層側の側面を露出させるステップと、
g)除去された前記残っているマンドレル層の下側のシリコン層を除去して、前記ダブル・ゲートの他方が形成される領域を画定するステップと、
h)前記側壁スペーサの下に位置するシリコン層の、ステップg)における前記除去により露出された側面にゲート酸化膜(221)を形成するステップと、
i)前記ダブル・ゲートの他方が形成される領域に第2導電型のポリシリコンを堆積させた後に平坦化する(112)ステップと、
j)前記側壁スペーサを除去し、該除去により形成された穴に真性ポリシリコンを充填するステップと、
k)前記第1導電型のポリシリコンと第2導電型のポリシリコンの上に延びる窒化物層を形成し、該窒化物層をマスクとして用いて、該第1導電型のポリシリコンと第2導電型のポリシリコンの、前記トランジスタのソース及びドレイン領域に近接する部分を選択的に除去するステップと、
を備える方法。 - フィン型ダブル・ゲート電界効果トランジスタを形成する方法であって、
a)埋め込まれた誘電体層の上にシリコン層を備えるシリコン・オン・インシュレータ基板を用意する(101)ステップ、
b)前記シリコン層の上側にマンドレル層(212)を形成し、前記マンドレル層をパターン形成するステップと、
c)残っているマンドレル層をマスクとして用いて前記シリコン層をパターン形成してダブル・ゲートの一方が形成される領域を画定する(104)ステップと、
d)前記シリコン層の前記パターン形成により露出された側面にゲート酸化膜を形成する(104)ステップと、
e)前記ダブル・ゲートの一方が形成される領域に、第1導電型のポリシリコンを堆積させた後に平坦化するステップと、
f)残っている前記マンドレル層を選択的に除去するステップと、
g)前記第1導電型のポリシリコンの、ステップf)における前記除去により露出された側の端部に側壁スペーサを設けるステップと、
h)前記除去されたマンドレル層の下側のシリコン層であって前記側壁スペーサで覆われていない部分のシリコン層を除去して、前記ダブル・ゲートの他方が形成される領域を画定するステップと、
i)前記側壁スペーサの下に位置するシリコン層の、ステップh)における前記除去により露出された側面にゲート酸化膜(221)を形成するステップと、
j)前記ダブル・ゲートの他方が形成される領域に第2導電型のポリシリコンを堆積させた後に平坦化する(112)ステップと、
k)前記側壁スペーサを除去し、それにより形成された穴に真性ポリシリコンを充填するステップと、
l)前記第1導電型のポリシリコンと第2導電型のポリシリコンの上に延びる窒化物層を形成し、該窒化物層をマスクとして用いて、該第1導電型のポリシリコンと第2導電型のポリシリコンの、前記トランジスタのソース及びドレイン領域に近接する部分を選択的に除去するステップと、
を備える方法。 - 前記シリコン層のソース及びドレイン領域にドーパントを打込むステップをさらに備える請求項1または2記載の方法。
- ステップd)において、ゲート酸化膜を形成する前に、シリコン層の露出された側から前記シリコン層にドーパントを打込み、及び、ステップh)において、ゲート酸化膜を形成する前に、シリコン層の露出された側から前記シリコン層にドーパントを打込むステップをさらに含む、請求項1記載の方法。
- ステップd)において、ゲート酸化膜を形成する前に、シリコン層の露出された側から前記シリコン層にドーパントを打込み、及び、ステップi)において、ゲート酸化膜を形成する前に、シリコン層の露出された側から前記シリコン層にドーパントを打込むステップをさらに含む、請求項2記載の方法。
- 前記シリコン層のソース及びドレイン領域にドーパントを打込むステップが、ハロー打込みにより行なわれる、請求項3に記載の方法。
- 前記第1導電型のポリシリコンがn型ポリシリコンであり、前記第2導電型のポリシリコンがp型ポリシリコンである、請求項1〜6のいずれか1項に記載の方法。
- ステップb)において、前記シリコン層の上に第1酸化物層、窒化物層、及び第2酸化物層を順次形成し、該第2酸化物層の上に前記マンドレル層が形成される、請求項1または2に記載の方法。
- 前記側壁スペーサが窒化珪素を堆積した後、指向性エッチングを行なうことにより形成される、請求項1または2記載の方法。
- 請求項1〜9のいずれか1項に記載の方法を使用して製造されるフィン型ダブル・ゲート電界効果トランジスタ。
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US09/886,823 US6960806B2 (en) | 2001-06-21 | 2001-06-21 | Double gated vertical transistor with different first and second gate materials |
| PCT/EP2002/006202 WO2003001604A2 (en) | 2001-06-21 | 2002-06-06 | Double gated transistor and method of fabrication |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2004531085A JP2004531085A (ja) | 2004-10-07 |
| JP4453960B2 true JP4453960B2 (ja) | 2010-04-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003507897A Expired - Fee Related JP4453960B2 (ja) | 2001-06-21 | 2002-06-06 | ダブル・ゲート・トランジスタおよび製法 |
Country Status (9)
| Country | Link |
|---|---|
| US (3) | US6960806B2 (ja) |
| JP (1) | JP4453960B2 (ja) |
| KR (1) | KR100518128B1 (ja) |
| CN (1) | CN1272855C (ja) |
| AU (1) | AU2002317778A1 (ja) |
| DE (1) | DE10296953B4 (ja) |
| IL (1) | IL159476A0 (ja) |
| TW (1) | TW578295B (ja) |
| WO (1) | WO2003001604A2 (ja) |
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- 2002-06-06 JP JP2003507897A patent/JP4453960B2/ja not_active Expired - Fee Related
- 2002-06-06 KR KR10-2003-7015974A patent/KR100518128B1/ko not_active Expired - Fee Related
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| AU2002317778A1 (en) | 2003-01-08 |
| US7288445B2 (en) | 2007-10-30 |
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| DE10296953T5 (de) | 2004-04-29 |
| DE10296953B4 (de) | 2010-04-08 |
| US20020197781A1 (en) | 2002-12-26 |
| WO2003001604A2 (en) | 2003-01-03 |
| WO2003001604A3 (en) | 2003-09-04 |
| CN1518772A (zh) | 2004-08-04 |
| KR20040012900A (ko) | 2004-02-11 |
| IL159476A0 (en) | 2004-06-01 |
| US20050221543A1 (en) | 2005-10-06 |
| JP2004531085A (ja) | 2004-10-07 |
| US7645650B2 (en) | 2010-01-12 |
| TW578295B (en) | 2004-03-01 |
| US6960806B2 (en) | 2005-11-01 |
| KR100518128B1 (ko) | 2005-10-04 |
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