JP2007521667A - トライゲートトランジスタ及びその製造方法 - Google Patents
トライゲートトランジスタ及びその製造方法 Download PDFInfo
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- JP2007521667A JP2007521667A JP2006549560A JP2006549560A JP2007521667A JP 2007521667 A JP2007521667 A JP 2007521667A JP 2006549560 A JP2006549560 A JP 2006549560A JP 2006549560 A JP2006549560 A JP 2006549560A JP 2007521667 A JP2007521667 A JP 2007521667A
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- 238000004519 manufacturing process Methods 0.000 title abstract description 22
- 238000000034 method Methods 0.000 claims abstract description 53
- 239000004065 semiconductor Substances 0.000 claims abstract description 45
- 239000000463 material Substances 0.000 claims abstract description 31
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 29
- 239000010703 silicon Substances 0.000 claims abstract description 29
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000000758 substrate Substances 0.000 claims abstract description 20
- 150000004767 nitrides Chemical class 0.000 claims description 16
- 230000008021 deposition Effects 0.000 claims description 6
- 238000005530 etching Methods 0.000 claims description 6
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 4
- 238000007517 polishing process Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 3
- JBRZTFJDHDCESZ-UHFFFAOYSA-N AsGa Chemical compound [As]#[Ga] JBRZTFJDHDCESZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052732 germanium Inorganic materials 0.000 claims description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 claims description 2
- 229910001218 Gallium arsenide Inorganic materials 0.000 claims 1
- 230000008569 process Effects 0.000 description 20
- 239000010409 thin film Substances 0.000 description 8
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 5
- 238000000151 deposition Methods 0.000 description 4
- 238000001312 dry etching Methods 0.000 description 4
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 4
- 229920005591 polysilicon Polymers 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 3
- 239000001257 hydrogen Substances 0.000 description 3
- 229920002120 photoresistant polymer Polymers 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 2
- 238000005229 chemical vapour deposition Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- 235000012239 silicon dioxide Nutrition 0.000 description 2
- 239000000377 silicon dioxide Substances 0.000 description 2
- 238000001039 wet etching Methods 0.000 description 2
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006664 bond formation reaction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000005137 deposition process Methods 0.000 description 1
- 239000010408 film Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000001459 lithography Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000007261 regionalization Effects 0.000 description 1
- 229910052814 silicon oxide Inorganic materials 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
- H01L29/76—Unipolar devices, e.g. field effect transistors
- H01L29/772—Field effect transistors
- H01L29/78—Field effect transistors with field effect produced by an insulated gate
- H01L29/785—Field effect transistors with field effect produced by an insulated gate having a channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a PN-junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof ; Multistep manufacturing processes therefor
- H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
- H01L29/66007—Multistep manufacturing processes
- H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
- H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
- H01L29/66409—Unipolar field-effect transistors
- H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
- H01L29/66787—Unipolar field-effect transistors with an insulated gate, i.e. MISFET with a gate at the side of the channel
- H01L29/66795—Unipolar field-effect transistors with an insulated gate, i.e. MISFET with a gate at the side of the channel with a horizontal current flow in a vertical sidewall of a semiconductor body, e.g. FinFET, MuGFET
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- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- Ceramic Engineering (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- Manufacturing & Machinery (AREA)
- Thin Film Transistor (AREA)
- Element Separation (AREA)
- Insulated Gate Type Field-Effect Transistor (AREA)
Abstract
Description
Claims (23)
- 半導体基板上にトレンチ層を設ける工程;
該トレンチ層の一部を該トレンチ層の残部が1つ以上の溝部を形成するように選択的に除去する除去工程であり、該トレンチ層の一部の除去が前記半導体基板を露出させる除去工程;
前記1つ以上の溝部を半導体材料で充填する工程;
前記1つ以上の溝部から余分な半導体材料を除去する工程;及び
前記半導体材料を1つ以上の半導体フィンとして露出させるように、前記トレンチ層の追加部分を除去する工程;
を有する方法。 - 請求項1に記載の方法であって、前記トレンチ層が複数の層から成るところの方法。
- 請求項2に記載の方法であって、前記複数の層が、前記半導体基板上に配置された第1酸化物層、該第1酸化物層上に配置された窒化物層、及び該窒化物層上に配置された第2酸化物層を含むところの方法。
- 請求項3に記載の方法であって、前記トレンチ層の追加部分を除去する工程が、前記第2酸化物層の残存部分、及び前記窒化物層の残存部分を除去すること、並びに前記第1酸化物層の残存部分の少なくとも一部分を残すことを有するところの方法。
- 請求項1に記載の方法であって、前記1つ以上の溝部が約10nmの深さを有するところの方法。
- 請求項5に記載の方法であって、前記1つ以上の半導体フィンが5%の範囲内で均一な約10nmの高さを有するところの方法。
- 請求項1に記載の方法であって、前記1つ以上の溝部から余分な半導体材料を除去する工程が、該半導体材料を前記トレンチ層の表面に平坦化することを含むところの方法。
- 請求項7に記載の方法であって、前記平坦化することが化学機械研磨プロセスによって達成されるところの方法。
- 請求項1に記載の方法であって、前記1つ以上の溝部を半導体材料で充填する工程が、該1つ以上の溝部内に該半導体材料をエピタキシャル成長させることを含むところの方法。
- 請求項1に記載の方法であって、前記1つ以上の溝部を半導体材料で充填する工程が、半導体材料の全面堆積を含むところの方法。
- 基板;及び
前記基板に形成された1つ以上のトランジスタであり、各トランジスタが半導体ボディを有し、各半導体ボディが20nm未満の高さを有し、且つ、各半導体ボディの該高さが仕様の高さの5%の許容範囲内で均一であるところの1つ以上のトランジスタ;
を有する集積回路装置。 - 請求項11に記載の集積回路装置であって、前記1つ以上のトランジスタがトライゲートトランジスタであるところの集積回路装置。
- 請求項12に記載の集積回路装置であって、各半導体ボディが約10nmの高さを有するところの集積回路装置。
- 半導体基板上に第1酸化物層を設ける工程;
該第1酸化物層上に窒化物層を設ける工程;
該窒化物層上に第2酸化物層を設ける工程;
1つ以上の溝部を形作るように前記第2酸化物層及び前記窒化物層の一部を選択的にエッチングする工程;
前記1つ以上の溝部を半導体材料で充填する工程;
前記1つ以上の溝部から余分な半導体材料を除去する工程;及び
1つ以上の半導体ボディが形成されるように前記第2酸化物層及び前記窒化物層の残部を選択的にエッチングする工程;
を有する方法。 - 請求項14に記載の方法であって、前記1つ以上の溝部が約10nmの深さを有するところの方法。
- 請求項14に記載の方法であって、前記1つ以上の半導体ボディが5%の範囲内で均一な20nm未満の高さを有するところの方法。
- 請求項16に記載の方法であって、前記1つ以上の半導体ボディが約10nmの高さを有するところの方法。
- 請求項14に記載の方法であって、前記1つ以上の溝部から余分な半導体材料を除去する工程が、該半導体材料を前記第2酸化物層の表面に平坦化することを含むところの方法。
- 請求項18に記載の方法であって、前記平坦化することが化学機械研磨プロセスによって達成されるところの方法。
- 請求項14に記載の方法であって、前記1つ以上の溝部を半導体材料で充填する工程が、該1つ以上の溝部内に該半導体材料をエピタキシャル成長させることを含むところの方法。
- 請求項14に記載の方法であって、前記1つ以上の溝部を半導体材料で充填する工程が、半導体材料の全面堆積を含むところの方法。
- 請求項14に記載の方法であって、前記半導体基板が、シリコン、ゲルマニウム、及びガリウム砒素を含むグループから選択された半導体材料から成るところの方法。
- 請求項14に記載の方法であって、前記半導体基板がシリコンから成り、前記第1酸化物層がSiO2から成り、前記窒化物層がSi3N4から成り、且つ前記第1酸化物層がSiO2から成るところの方法。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US10/760,028 US7268058B2 (en) | 2004-01-16 | 2004-01-16 | Tri-gate transistors and methods to fabricate same |
PCT/US2005/000947 WO2005071730A1 (en) | 2004-01-16 | 2005-01-10 | Tri-gate transistors and mehtods to fabricate same |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2007521667A true JP2007521667A (ja) | 2007-08-02 |
Family
ID=34749835
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2006549560A Pending JP2007521667A (ja) | 2004-01-16 | 2005-01-10 | トライゲートトランジスタ及びその製造方法 |
Country Status (6)
Country | Link |
---|---|
US (2) | US7268058B2 (ja) |
EP (1) | EP1704590A1 (ja) |
JP (1) | JP2007521667A (ja) |
CN (1) | CN100550324C (ja) |
TW (1) | TWI297212B (ja) |
WO (1) | WO2005071730A1 (ja) |
Cited By (1)
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JP2013123077A (ja) * | 2006-06-29 | 2013-06-20 | Internatl Business Mach Corp <Ibm> | フィンfetデバイスの構造およびその製造方法 |
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CN1930671A (zh) | 2007-03-14 |
TW200535933A (en) | 2005-11-01 |
CN100550324C (zh) | 2009-10-14 |
TWI297212B (en) | 2008-05-21 |
US20050158970A1 (en) | 2005-07-21 |
US7268058B2 (en) | 2007-09-11 |
WO2005071730A1 (en) | 2005-08-04 |
EP1704590A1 (en) | 2006-09-27 |
US20070262389A1 (en) | 2007-11-15 |
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